|| List of recent Diaphragm-related patents
| Receiver and mobile communication terminal including the receiver|
A receiver, a mobile terminal including the receiver, and a method of disposing the receiver on the mobile terminal are disclosed. The mobile terminal including: a receiver including: a casing including walls and an inner space defined at least partially by the walls, a diaphragm driving unit disposed in the casing, a diaphragm including a central region disposed in the casing, a projection unit extending from the casing, the projection unit including walls and a receiver hole disposed in one of the walls, and an audio path defined within the casing walls and the projection unit walls; and a printed circuit board (pcb) including a cutout along an edge.
| High-pressure fuel pump device|
A high-pressure fuel pump device of the invention includes a plunger-type high-pressure pump unit (31) configured to pressurize fuel as a plunger (43) thereof makes reciprocating motion, a diaphragm-type supply pump unit (33) configured to suck in fuel in a fuel tank (11) and supply the fuel to the high-pressure pump unit as a diaphragm (87) thereof oscillates in conjunction with the reciprocating motion of the plunger, and a fuel return unit (34) provided in the supply pump unit and configured to return, to the fuel tank, surplus fuel that is not sucked into the high-pressure pump unit.. .
| Turbomachine diaphragm and method of repairing a turbomachine diaphragm|
A turbomachine diaphragm includes a sealing section having a first end portion that extends to a second end portion through an intermediate portion. At least one rail member includes a first end section that extends from the first end portion of the sealing section to a second end section through an intermediate section having an inner surface section and an outer surface section.
| Earphone with tension diaphragm|
An earphone with tension diaphragm includes a front portion, a rear portion, a silicone gel earplug, a filtering net and a sound generating unit. As a user pushes the earphone into his ear, the diaphragm of the sound generating unit has a deformation and thus an air turbulence would be generated.
| Microphone with acoustic mesh to protect against sudden acoustic shock|
A portable electronic device having an outer case having a substantially planar face in which a microphone associated acoustic port is formed. The device also has a micro-electro-mechanical system (mems) microphone positioned within the outer case, the mems microphone having a diaphragm facing the microphone associated acoustic port.
| Wrist band and other portable loudspeakers and electronic apparatus utilizing same|
The invention provides in some aspects a loudspeaker, for example, configured in a band-like shape and suitable, for example, for wearing as a wristband, armband, legband or the like. A related aspect of the invention is to provide such a wearable loudspeaker comprising a band-shaped enclosure, a driver that is mounted in the enclosure, and an active diaphragm that is coupled to the driver to generate sound waves directed outwardly from the enclosure (referred to below as “outwardly directed waves,” “outward waves” and, more often, by analogy to a conventional, non-wearable loudspeaker “frontward-directed sound waves” or, more simply, “front waves”) and backward-directed sound waves (“back waves”) directed inwardly into the enclosure (referred to below as “inwardly directed waves,” “inward waves” and, more often, by analogy to a conventional loudspeaker “backward-directed waves” or, more simply, “back waves”).
| Electrostatic earphone|
An electrostatic earphone with a closed-back housing, a sleeve for acoustically sealing to an ear canal, and an electrostatic transducer is provided. The closed-back housing may include a nozzle for acoustic transmission of sound to the ear canal, and the sleeve may be removably attached to the nozzle.
| Light emission portion, photoelectric smoke sensor, and suction-type smoke sensing system|
The present invention can detect smoke with high accuracy. A light emitting portion is provided with a light emitting element outputting the inspection light with high brightness, the distribution of which is adjusted.
| Diaphragm valve|
A fluid inflow passage 3 is made up of an inner communication portion 11 having an upper end opening that leads to a center portion of a bottom surface of a recess 5 in a body and a lower end surface that is closed and an outer communication portion 12 having one end that leads to the inner communication portion 11 and the other end that forms a fluid inlet. The inner communication portion 11 has a column-like protruding portion 13 provided on the lower end surface 11a so as to form a column-like non-passage portion in the inner communication portion and thereby forms a cylindrical-hollow passage.
| Diaphragm and backing cushion shaping for increased membrane life|
A weir-type diaphragm valve a valve body with a fluid channel and a weir having a weir sealing portion; and a diaphragm with two or more diaphragm portions, including a diaphragm weir sealing portion at the weir to respond to one force and travel against the weir sealing portion to close the weir-type diaphragm valve and stop fluid flow through the fluid channel, and respond to a second force and travel away from the weir sealing portion to open the weir-type diaphragm valve and allow fluid flow through the fluid channel, a center flexing portion off the weir configured to experience convex and concave flexing extremes when the weir-type diaphragm valve is closed and opened, and an outer sealing portion configured to be fully constrained between components, one of which includes the valve body, when the weir-type diaphragm valve is closed and opened. The diaphragm portions have different characteristics based on different material stresses associated with different functionality that each portion is configured to perform when the weir-type diaphragm valve is closed and opened..
| Fast response dual stiffened mode isolator and method thereof|
A fast response, dual stiffness mode isolator including a flexible diaphragm for an isolation piston, a first chamber supporting the flexible diaphragm, a second chamber serving as a reservoir, and a valve connected to a supply, to the first chamber, and to the second chamber and operable to by-pass the second chamber to more quickly direct the supply to the first chamber.. .
| Slit diaphragm flexure|
A gimbal is disclosed having a base with a bottom and a support structure extending up from the bottom. Two or more mounts connected to the base and a stiffener connects to two or more mounts.
| Inverted squeeze foamer|
A foamer for use in dispensing a liquid product with a foam consistency includes a top cap, a closure, a housing, an air-flow diaphragm, a mesh screen and a valve structure. The closure includes a portion which is received by the cap and these two (2) cooperate to define a foam outlet.
| Ventilating and evacuating valve for conduit pipes and/or braces|
The present invention relates to a ventilating and evacuating valve for fluid-guiding conduit pipes and/or braces, comprising a valve mechanism (2) and a floating body (1) which acts on the valve mechanism (2), wherein the valve mechanism (2) comprises: a valve body (4) which can be moved into different opening and/or closing positions in order to open and close a valve outlet (3); a diaphragm cup (5); and a roll diaphragm (6) which is arranged between the valve body (4) and the diaphragm cup (5) and can come to rest in different opening and/or closing positions over aperture openings (7) of the valve body (4), wherein the valve also comprises a channelling means (8) which is configured to guide an evacuating flow past the valve mechanism (2).. .
| Stabilized high flow doctor blade head for transfer roller|
A doctor blade head for coating a transfer roller includes a semi-cylindrical cavity to enable streamline fluid flow therethrough, and check plates at the inlet and outlet openings for permitting unidirectional flow into the inlet opening from said pump and out of the outlet opening toward the pump. An hydraulic accumulator acts as a fluid pressure and fluid velocity balancing device, and includes a rolling diaphragm piston moving in a cylinder that is connected to the inlet fluid path, with a spring impinging on the piston to absorb pressure surges and compensate pressure dropoffs..
| Slim capacitance sensor for downhole applications|
A capacitive pressure sensor includes a stator which encircles a portion of a cylindrical diaphragm. This encircling forms a circumferential gap between the sidewalls of the stator and the diaphragm.
| Component part and method for testing such a component part|
Measures are described which simplify the functional testing of a component having an mems element provided with a pressure-sensitive sensor diaphragm, and which allow a self-calibration of the component even after it is already in place, i.e., following the end of the production process. The component has a housing, in which are situated at least one mems element having a pressure-sensitive sensor diaphragm and a switching arrangement for detecting the diaphragm deflections as measuring signals; an arrangement for analyzing the measuring signals; and an arrangement for the defined excitation of the sensor diaphragm.
An alkali-chalcogen cell, in particular a lithium-sulfur cell. In order to increase the long-term stability and lifespan of the alkali-chalcogen cell, the separator of the alkali-chalcogen cell is provided with a polymer-ionophore component, in particular a polymer-ionophore diaphragm, including a polymeric matrix material and alkali-ionophores, in particular lithium ionophores..
|Valve and diaphragm for a pump|
A diaphragm pump (10) having a pump body (11) providing opposing pump chambers (12, 13). Mounted in the body is a piston assembly (14) having pistons (15) joined by a piston rod (16).
|Diaphragm metering pump having a degassing system|
A diaphragm metering pump includes a pump body having a head portion including a suction side and a discharge side defining a flow path. A valve seat is arranged at one of the suction side and the discharge side, and a check valve is arranged at the valve seat.
|Loudspeaker and electronic equipment including the loudspeaker|
Provided is a loudspeaker having a thin long structure, and the loudspeaker includes: a frame; a diaphragm having a hollow structure and in which a shape of a plane that is perpendicular to a vibration direction is an oblong shape having a long side and a short side; an edge vibratably supporting the diaphragm and being fixed to the frame; at least one cylinder-shaped voice coil bobbin connected to the diaphragm in a penetrating manner; a voice coil disposed inside the hollow structure of the diaphragm and attached to the voice coil bobbin; and a magnetic circuit disposed inside the voice coil bobbin and configured to drive the voice coil.. .
|Loudspeaker driver with dual electromagnet assemblies|
Loudspeaker drivers are provided. According to one embodiment, a loudspeaker driver comprises a diaphragm, a connection tube, first and second voice coils, and first and second magnet assemblies.
A speaker includes a vibrating unit, and a magnetic circuit unit. The vibrating unit includes a diaphragm, an elastic plate coupled with the diaphragm, and a voice coil electrically connecting to the elastic plate.
A micro-speaker includes a vibrating unit including a diaphragm, a voice coil, and a magnetic circuit unit supporting the diaphragm. The diaphragm includes a position portion serving as an edge of the diaphragm.
An electro-acoustic transducer includes a frame; a cover covering the frame, a magnetic system assembled with the frame, a vibration system having a diaphragm and a driving coil assembled with the frame, conductive terminals assembled with the frame, and an wireless charging coil supported by the frame. The conductive terminals include a pair of first terminals connecting to the driving coil and a pair of second terminals connecting to the wireless charging coil.
|Systems and methods for a vibrating input device|
The application includes an apparatus comprising of a housing, processing circuitry for receiving and transmitting user input, and a transducer for transforming audio information in an electrical signal into both acoustic and haptic signals. The transducer is disposed within the housing, and has a speaker including a diaphragm and a mass element attached to a portion of the diaphragm.
An earphone includes: a loudspeaker unit; a sound conductive tube which is connected to a front surface having a diaphragm included in the loudspeaker unit, and has a hole through which a sound generated from the loudspeaker unit is emitted; a housing which is connected to a back surface of the loudspeaker unit so that a space is formed between the housing and the back surface of the loudspeaker unit, and has a first air hole connecting the space to external air; a first braking part which closes a sound hole of the loudspeaker unit; and a second braking part which closes the first air hole.. .
A speaker includes a vibrating unit, a gasket and a magnetic circuit unit. The vibrating unit includes a diaphragm, and a voice coil electrically connecting to the elastic plate.
A micro-speaker includes a vibrating unit including a diaphragm and a voice coil, and a magnetic circuit unit supporting the diaphragm. The diaphragm includes a position portion serving as an edge of the diaphragm.
A micro-electroacoustic device includes a vibrating unit and a magnetic circuit unit supporting the diaphragm. The vibrating has a diaphragm and a voice coil driving the diaphragm to vibrate along a vibration direction.
|Microfluidic agitator devices and methods for agitation of a fluid|
According to various embodiments, a microfluidic agitator device may be provided. The microfluidic agitator device may include: an air inlet; an air outlet; an elastic diaphragm provided between the air inlet and the air outlet and configured to oscillate if an airflow from the air inlet to the air outlet is provided; and a chamber coupled to the elastic diaphragm..
|Backlight unit and liquid crystal display device|
A backlight unit and a liquid crystal display device include a shell assembly having a display window, a liquid crystal panel installed in the shell assembly, and a backlight unit providing a backlight source. The backlight unit includes a light-outgoing top surface just opposite to the liquid crystal panel, a light guide plate adjacent to the incident side of the light-outgoing top surface, an optical diaphragm, a reflecting plate arranged on the bottom of the light guide plate, and a light source.
|Lens apparatus and imaging apparatus detachable therefrom|
An imaging apparatus includes a sensor configured to photoelectrically convert light from an object to output a signal, a selection unit configured to select one of a first exposure control mode and a second exposure control mode having an exposure changing amount per unit time larger than that of the first exposure control mode, and a controller configured to perform control to transmit diaphragm control information generated based on the output signal from the sensor, first information, and second information to a connected lens unit, wherein the first information is about the exposure control mode selected by the selection unit, and the second information is speed information of a diaphragm unit corresponding to the lens unit.. .
|Method and apparatus for release-assisted microcontact printing of mems|
The disclosure provides methods and apparatus for release-assisted microcontact printing of mems. Specifically, the principles disclosed herein enable patterning diaphragms and conductive membranes on a substrate having articulations of desired shapes and sizes.
|Diaphragm valve having spherically-shaped valve body and diaphragm sealing surface|
Apparatus, including a diaphragm valve, is provided featuring a valve body configured with at least one spherically-shaped valve body sealing surface and a diaphragm configured with at least one diaphragm sealing surface, and also configured to respond to an applied force and provide sealing contact between the at least one diaphragm sealing surface and the at least one spherically-shaped valve body sealing surface. The valve body is configured with a spherical weir having a spherical weir sealing surface configured with polish marks substantially perpendicular to a weir leak path.
|Valve-controlled dispensing closure|
The invention relates to a dispensing closure for a container that holds a fluid, which can be tightly fitted into a container neck to ensure liquid-tightness of the container. The dispenser closure includes a plug body arranged to be inserted into the container neck and having a central fluid passage and having a peripheral air passage, a double-valve diaphragm comprising a flexible elastic material and arranged in a recess provided in an upper part of the plug body to cover the fluid passage and the air passage, and a plug cap sealing the double-valve diaphragm within the plug body having one or more slots arranged circularly and axially aligned with the air passage of the plug body and having a central orifice axially aligned with the fluid passage of the plug body.
|Device and method for regulating the chamber pressure of coking chambers of a coke-oven battery using adjustable diaphragms at the ascending pipe elbow openings into the raw gas receivers|
A device for regulating the chamber pressure of coking chambers of a coke-oven battery using adjustable iris diaphragms or iris nozzles at the ascending pipe elbow openings in the raw gas receiver. The gas stream flowing from the gas chamber of a coking chamber into the raw gas receiver can thus be regulated so that the pressure in the gas chamber of the coking chamber can be controlled.
|Speaker diaphragm and its manufacturing method|
A speaker diaphragm structure includes a speaker diaphragm and a coating formed on the speaker diaphragm and is composed of at least one dense layer and relatively porous layer alternately arranged with respect to the at least one dense layer.. .
|Gage pressure transducer and method for making the same|
A method, device and system for a gage pressure transducer including the making thereof are provided. In one embodiment, a method comprises receiving, at a first diaphragm, a first pressure, wherein the first diaphragm is composed of metal; transferring, from the first diaphragm, to a first sensor, the first pressure using a first oil region, wherein the first oil region is disposed between the first diaphragm and the first sensor; receiving, at the first sensor, the first pressure; measuring, by the first sensor, the first pressure to generate a first pressure signal; and outputting, from the first sensor, to a first header pin, the first pressure signal, wherein the first header pin is electrically coupled to the first sensor using a first conductive glass frit..
|Hot gas expander inlet casing assembly and method|
A gas turbine device includes an inlet casing and a stator diaphragm provided inside the inlet casing. The stator diaphragm has an integral inner stator shroud and an outer stator shroud and a plurality of stator vanes provided in a circumferential arrangement between the inner stator shroud and the outer stator shroud.
|Acoustic sensor and microphone|
Provided is an acoustic sensor capable of improving an s/n ratio of a sensor without preventing reduction in size of the sensor. A diaphragm 43 as a movable electrode plate is formed on the top surface of a silicon substrate 42.
|Multi-layered surgical prosthesis|
The present invention generally relates to the field of prostheses for surgical applications, to methods of their manufacturing and to methods of treating a patient by implanting them into a patient. More particularly, the present invention relates to prostheses having a multi-layered sheet structure and their use in hernia repair, the repair of anatomical defects of the abdominal wall, diaphragm, and chest wall, correction of defects in the genitourinary system, and repair of traumatically damaged organs such as the spleen, liver or kidney..
|Rotary volumetric machine|
A rotary volumetric machine having a stationary structure; a rotor, which can turn with respect to the stationary structure about a principal axis of rotation; a work chamber formed within said rotor; a disk, which is housed in said work chamber and can turn with respect to the stationary structure about a secondary axis of rotation fixed with respect to said stationary structure, the secondary axis of rotation being inclined with respect to said principal axis of rotation, said disk having a radial through groove; a diaphragm, which is fixed with respect to said rotor, extends in said work chamber, and engages said radial groove of said disk; and an inlet opening and an outlet opening for a working fluid, which are formed in said rotor, communicate with said work chamber, and are located on opposite sides of said diaphragm.. .
|Rotary diaphragm pump|
The rotary diaphragm pump has a flexible, resilient diaphragm band surrounding an elliptical frame within a case having four chambers surrounding an elliptical core. An articulating mechanism has a plurality of wheels traveling along the elliptical edges of the frame.
A diaphragm pump comprising a housing for receiving and securely holding a motor, the housing comprising an elongate portion having a closed end and an open end, the elongate portion being adapted to securely receive and house a motor; and a collar portion being provided at the open end of the elongate portion; a cover for the housing, the cover being adapted to engage with the housing; a diaphragm plate extending across the open end of the housing between the collar portion of the housing and the cover and being secured therebetween when the cover is engaged with the collar portion of the housing. The diaphragm pump also includes a wobble plate positioned within the collar portion of the housing..
|Method for repairing a turbine diaphragm and diaphragm assembly resulting therefrom|
This disclosure describes embodiments of a method of repairing a diaphragm found in a turbine, and a diaphragm assembly resulting from the same, that does not require welds in between the partitions. The method inserts a replacement part in place of certain machine-removed portions of the existing partitions on the diaphragm.
A transducer includes a housing, a magnet unit, an elastic diaphragm, a vibration unit, and a coil. The housing has a first housing and a second housing to form a storing space.
|Apparatus for inspecting a measurement object with triangulation sensor|
An apparatus for inspecting a measurement object, comprising a workpiece support for receiving the measurement object and a measuring head carrying an optical sensor. The measuring head and workpiece support are movable relative to one another.
|Chromatic sensor and method|
An apparatus for inspecting a measurement object, comprising a workpiece support for supporting the measurement object, and a measuring head carrying an optical sensor. The measuring head and the workpiece support are movable relative to one another.
|Semiconductor physical quantity sensor and method for manufacturing the same|
A semiconductor physical quantity sensor includes (i) a semiconductor substrate having a first conductive type, (ii) a diaphragm portion disposed in the semiconductor substrate, (iii) a sensing portion disposed in the diaphragm portion, (iv) a well layer having a second conductive type, and (v) a back flow prevention element. The well layer is disposed in a surface portion of the semiconductor substrate, and corresponds to the diaphragm portion.
|Sample holding apparatus for electron microscope, and electron microscope apparatus|
A sample holding apparatus for electron microscope includes: a sample holding assembly including an assembly of three components of an upper diaphragm holding part, a sample holding plate and a lower diaphragm holding part; and a holding part that holds the sample holding assembly replaceably. The sample holding assembly includes a cell defined between a diaphragm of the upper diaphragm holding part and a diaphragm of the lower diaphragm holding part, and a flow channel connected to the cell, in which a sample mounted at a protrusion of the sample holding plate is placed.
|Breather of a hydraulic or electrohydraulic control device|
A venting device for a hydraulic control unit, designed as a diaphragm in a bore in the control unit, so that collected air can escape, via the diaphragm, to outside the housing. A membrane, which is permeable to air and oil when under pressure, closes the diaphragm bore with respect to the outside.
A multi-channel trocar developed for use in minimal-access surgery/single incision laparoscopic surgery. The trocar permits surgical access of two or more articulating laparoscopic instruments or scopes through one skin incision using a dividing membrane to separate the working channels.
|Energy store with separator|
An electrochemical energy store including a cathode space, an anode space, at least one electrolyte solution, the electrolyte solution being in the cathode space and in the anode space, and at least one separator, to separate the cathode space from the anode space. The separator includes a diaphragm, and the diaphragm has a permeability to molecules smaller than or equal to 250 dalton, the diaphragm having a valence-dependent permeability to the molecules.
|Electromagnetically driven fluid pump having a center plate with function of centering|
There is provided an electromagnetically driven fluid pump. Even if deviation of a center plate from the diaphragm arises, centering of the center plate is carried out during the work for setting the center plate to an oscillator.
|Diaphragm pump and method for delivering fine-grain powder with the aid of a diaphragm pump|
The invention relates to a diaphragm pump having a delivery space, which encloses a working volume, at least one deflectable diaphragm, which can be moved into a suction position and a pump position, an inlet valve arranged on a suction side of the diaphragm pump and an outlet valve arranged on the pressure side of the diaphragm pump. In order to make it possible to deliver fine-grain powder, for example, non-flowable powders having particle sizes of 0.01 μm to 100 μm, using a diaphragm pump, it is proposed that a gas feed for introducing a gas into the delivery space be arranged at the delivery space.
|Method for increasing compressed air efficiency in a pump|
One or more techniques and/or systems are disclosed for increasing compressed air efficiency in a pump utilizes an air efficiency device in order to optimize the amount of a compressed air in a pump. The air efficiency device may allow for controlling the operation of the air operated diaphragm pump by reducing the flow of compressed air supplied to the pump as the pump moves between first and second diaphragm positions.
|Illumination optical unit|
An illumination optical unit for an euv projection exposure apparatus has a diaphragm comprising a radiation-transmissive region having a discrete symmetry group. The form of the diaphragm is adapted to the form of the facets of a pupil facet mirror or to the form of the radiation source.
|Diaphragm for an electrostatic actuator in an ink jet printer|
Diaphragms for electrostatic actuators for inkjet printers and methods for manufacturing are provided. The method includes electroplating a first layer on a mandrel, and applying a photoresist to the first layer.
|Pneumatic control valve and assembling method thereof|
To provide a pneumatic control valve including: a valve body 10; a valve opening/closing mechanism section 20; a pneumatic control section 60 for the valve opening/closing mechanism 20 that is coupled to the valve element 21 via a piston stem 62; a diaphragm 30 that defines a partition between a fluid and the pneumatic control section 60; a cylindrical lower stopper 40 that is fixed to the valve body 10 as anti-falling off for the valve element 21 and the diaphragm 30 inserted into a valve chamber 13, and supports movement of the piston stem 62; and a cylindrical upper stopper 50 that is fixed to the valve body 10 as anti-falling off for the piston stem 62 inserted into a piston chamber 15, and supports movement of the piston stem 62.. .
A drip emitter is provided for delivering irrigation water from a supply tube to an emitter outlet at a reduced and relatively constant flow rate. Water enters the emitter through a first inlet and proceeds into a first chamber.
A reference electrode with an in-situ modified porous diaphragm has at least one housing (1, 201, 301), a first conductor element (4, 204, 304), a modifying electrolyte which is capable of free-flow movement and is contained in the housing (1, 201, 301), and a porous diaphragm (3, 203, 303) which establishes a liquid connection between the modifying electrolyte and a measurement medium (9, 209, 309). The modifying electrolyte seeps out through the porous diaphragm during operation.
|Positive air shut off device for bag-in-box pump|
The present invention provides a device for turning off a pump. In operation, when the device is activated there is vacuum pressure in a syrup chamber.
The present invention relates to a valve assembly, the valve assembly comprising: a valve body having a first pressure chamber and a second pressure chamber, wherein the pressure of the first pressure chamber is lower than that of the second pressure chamber, and the pressure of the second pressure chamber is discharged to the first pressure chamber in response to the change of the pressure of the first pressure chamber; a blocking device arranged between the first pressure chamber and the second pressure chamber; and a valve stem arranged in the valve body with one end movably contacting the blocking device; and a diaphragm connected to the valve stem and adjacent to or arranged above the first pressure chamber; wherein when the pressure of the first pressure chamber is changed, the diaphragm forces the valve stem to move by sensing the pressure change of the first pressure chamber.. .
|Device for measuring forces and method of making the same|
A device for measuring forces and a method of making the same is disclosed. The device comprises a boss structure within a diaphragm cavity, wherein the boss structure has substantially parallel sidewalls.
|Capacitive pressure sensor in an overmolded package|
An overmolded pressure sensor package is provided. The pressure sensor die (pcell) is capped so that the pcell has enhanced rigidity to withstand stress effects produced by the molding encapsulant.
|Flexible microwave catheters for natural or artificial lumens|
A coupler for coupling a flexible coaxial cable, a fluid cooling system and the outer sheath of a catheter, the coupler including a fluid coupler body having a fluid inlet, a fluid outlet, a bypass bulb, an outer sheath, and a fluid sealing system housed in the fluid coupler body. The fluid sealing system includes a distal sealing diaphragm and a proximal sealing diaphragm configured to form a fluid-tight seal with the fluid coupler body..
This invention provides a multi-layer diaphragm which is for use in fluid devices and has excellent maintainability in addition to both operability and pressure resistance. This multi-layer diaphragm is provided with a first and second plate and with an elastic adhesive layer which binds together the first and second metal plates.
A pump flexes a diaphragm to move fluid through a pump chamber. In one implementation, the diaphragm is conical shaped.
|Suspension for a sound transducer|
An object of the present invention is to provide a suspension for a sound transducer which has a central portion serving as a center diaphragm and which has a cover layer and a copper pattern partially removed to prevent a decrease in sound pressure from being caused by an increase in weight of a vibration system. According to the present invention, there is provided a suspension for a sound transducer which includes a central portion, a peripheral portion, and a support portion for connecting the central portion to the peripheral portion, the suspension comprising: a base film, a conductive film attached on the base film by means of an adhesive, and a cover layer attached on the conductive film by an adhesive, wherein at least part of the cover layer disposed on the central portion is removed..
|Speaker system, electronic apparatus using same, and mobile body device|
A loudspeaker system includes an enclosure surrounding a plurality of loudspeakers. The plurality of loudspeakers are disposed in series along a straight line in the enclosure.
A speaker 10 includes: a plurality of piezoelectric diaphragms 11 and 12 each including a substrate and a piezoelectric element provided on at least one surface of the substrate; one or a plurality of connecting members 13 connecting the plurality of piezoelectric diaphragms 11 and 12 to each other such that the plurality of piezoelectric diaphragms 11 and 12 aligned from the piezoelectric diaphragm 11 located at a frontmost side of the speaker 10, in a thickness direction of the piezoelectric diaphragm 11, and the piezoelectric diaphragms 11 and 12 adjacent to each other face each other at an interval; a support member 16 supporting the back-side diaphragm 12 that is a piezoelectric diaphragm at a backmost side of the speaker 10. The plurality of piezoelectric diaphragms 11 and 12 include two piezoelectric diaphragms 11 and 12 having stiffnesses different from each other..