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Vacuum Pump patents

      

This page is updated frequently with new Vacuum Pump-related patent applications.




 Open-type x-ray tube comprising field emission type electron gun and x-ray inspection apparatus using the same patent thumbnailnew patent Open-type x-ray tube comprising field emission type electron gun and x-ray inspection apparatus using the same
An object of the present invention is to provide the x-ray tube which improves the workability of the baking for obtaining the ultra-high vacuum of the x-ray tube having a field emission type electron gun and have a stable performance. The x-ray tube comprises a field emission type electron gun chamber, an electron beam aperture, an x-ray target and a vacuum pump, in one body with a vacuum sealing structure (vacuum tube section).
Mars Tohken Solution Co., Ltd.


 Outlet port part and vacuum pump patent thumbnailnew patent Outlet port part and vacuum pump
An outlet port part has a heat insulating portion for preventing heat obtained from a heater disposed in the outlet port part from being transmitted toward a base side, and for transmitting the heat efficiently to the back (the vacuum pump side) of the outlet port. The heat insulating portion of the outlet port part is provided with a flange portion formed on the outer peripheral surface of the outlet port part, and a heat insulating spacer disposed in close contact with the flange portion.
Edwards Japan Limited


 Granular material delivery system with air flow limiter patent thumbnailnew patent Granular material delivery system with air flow limiter
Apparatus and methods for conveying granular material from a supply to receivers that retain and dispense the material when needed by process machine include a vacuum pump, an air flow limiter connected to the vacuum pump, a first conduit connecting the receivers to the air flow limiter, and a second conduit connecting the material supply to the receivers.. .
Maguire Products, Inc.


 Vacuum drawer for vacuuming food patent thumbnailnew patent Vacuum drawer for vacuuming food
A vacuum drawer for vacuuming food comprises a vacuum chamber (20) which can be closed in an airtight manner by a cover (21) which can be actuated and an installation unit (40) to which a vacuum pump can be connected. To be able to generate an external vacuum, the vacuum drawer comprises a connector part (41) which is releasably connectable to the installation unit (40) (fig.
Michatek K.s.


 Method and system for actuating a vacuum pump associated with a brake booster patent thumbnailnew patent Method and system for actuating a vacuum pump associated with a brake booster
A method for actuating an electric vacuum pump of a brake booster including indirectly ascertaining a negative pressure in the brake booster. Depending on the indirectly ascertained negative pressure, and on a pumping capacity of the vacuum pump, ascertaining at least one activation parameter for the vacuum pump.
Ford Global Technologies, Llc


 Adjustable variable atmospheric condition testing apparatus and method patent thumbnailAdjustable variable atmospheric condition testing apparatus and method
An adjustable variable atmospheric condition testing apparatus for testing an object includes an outer chamber, an inner chamber positioned inside and in fluid communication with the outer chamber, a vacuum pump configured to remove gas from the inner and outer chambers, and further configured to expel the removed gas via an exhaust, an intake configured to selectively introduce gas from ambient into the inner chamber via a valve, such that the introduced gas interacts with the object, and a sensor positioned downstream of the object and configured to detect a characteristic of the gas interacting with the object.. .
Hyperloop Technologies, Inc.


 Oil-lubricated bearing device and vacuum pump patent thumbnailOil-lubricated bearing device and vacuum pump
An oil-lubricated bearing device comprises: a rolling bearing including an inner ring, an outer ring, rolling bodies, and a holder; a tapered member; a lubricant storage disposed on a side provided with the tapered member with respect to the inner ring; and a contact portion. The holder includes pockets each formed with outer and inner ring side openings and configured to hold a corresponding one of the rolling bodies, a lubricant scraping portion formed at an inner peripheral surface of each of the pockets and configured to scrape lubricant adhering to a surface of each of the rolling body, and a second inclined surface formed at an outer peripheral surface portion of the holder adjacent to the outer ring side opening and rising with a slope toward the lubricant storage..
Shimadzu Corporation


 Film formation method and film formation  thin film patent thumbnailFilm formation method and film formation thin film
A method for forming a thin film having durability at a low cost is provided. A film formation apparatus 1 is used in the film formation method.
Shincron Co., Ltd.


 Apparatus and  producing core rod of optical fiber patent thumbnailApparatus and producing core rod of optical fiber
A method for producing a depressed-cladding core rod of an ultra-low water peak optical fiber, the method including 1) producing a core rod component; 2) producing an inner cladding casing component; 3) disposing the core rod hollow shaft and the casing hollow shaft respectively in the glass lathe; 4) cutting off connections among a pressure controlling pipe, a scrubber, and a vacuum pump; 5) connecting the inner cladding casing to the core rod hollow shaft hermetically; 6) turning on the glass lathe; 7) transporting a first mixture gas to the core rod hollow shaft; 8) moving a high temperature heat source; 9) transporting a second mixture gas to the core rod hollow shaft; 10) transporting the first mixture gas to the core rod hollow shaft; 11) transporting the first mixture gas under certain conditions; and 12) controlling relevant parameters to fuse the inner cladding casing with the core layer rod.. .
Zhongtian Technology Advanced Materials Co., Ltd.


 Vacuum filter press with high volume filter chambers and liquid injection system patent thumbnailVacuum filter press with high volume filter chambers and liquid injection system
A vacuum filter press system may comprise: a frame; a liquid injection system for controllably injecting liquid directly into each of a multiplicity of chambers; a plurality of filter plates configured to form a stack of parallel plates, each of the filter plates being movably attached to the frame and configured to form the multiplicity of chambers, each of the chambers being formed by adjacent filter plates, each of the chambers being lined by filter cloths, wherein the plurality of filter plates, the multiplicity of chambers and the filter cloths are configured to allow water vapor to escape from the chambers while retaining solids from the liquid to form a filter cake; and a vacuum pump connected to the multiplicity of chambers. Furthermore, wherein each filter plate has spacers attached to both sides, for enlarging the width, and hence capacity of the filter chambers..

Elongated permanent ring magnet with a plurality of axially directed magnetized zones and magnetic bearing with such a ring magnet

The present invention is directed to a magnet for a magnetic bearing arrangement, a bearing arrangement comprising said magnet, and a vacuum pump comprising said bearing arrangement. In particular the invention can be particularly useful in a magnetic bearing arrangement that reduces stray magnetic fields for a turbomolecular vacuum pump, although it is understood that the invention is not limited to this field and other applications will be understood by the skilled person..
Edwards Limited

Pumping method in a system of vacuum pumps and system of vacuum pumps

The present invention relates to a pumping method in a pumping system (sp) comprising: a primary dry screw-type vacuum pump (3) with a gas entry orifice (2) connected to a vacuum chamber (1) and a gas exit orifice (4) leading into a conduit (5) before coming out into the gas outlet (8) of the pumping system (sp), a non-return valve (6) positioned in the conduit (5) between the gas exit orifice (4) and the gas outlet (8), and an ejector (7) connected in parallel to the non-return valve (6). According to this method, the primary dry screw-type vacuum pump (3) is put into operation in order to pump the gases contained in the vacuum chamber (1) through the gas exit orifice (4); in a simultaneous way, the ejector (7) is fed with working fluid, and the ejector (7) continues to be fed with working fluid all the time that the primary dry screw-type vacuum pump (3) pumps the gases contained in the vacuum chamber (1) and/or all the time that the primary dry screw-type vacuum pump (3) maintains a defined pressure in the vacuum chamber (1).
Ateliers Busch Sa

Saliva management system with continuous flow through oral device

Systems for maintaining a vacuum in a patient's oral cavity comprises an oral device, a vacuum control system, and an assembly including first and second tubes for connecting the vacuum control system to the oral device. The oral device has an internal plenum, and a vacuum is drawn in the plenum by a vacuum pump connected by a first tube of the tubular assembly.
Apnicure, Inc.

Vacuum mixer and operation method therefor

The objective of the present invention is to provide: a vacuum mixer increasing the convenience of use by integrating a vacuum device into a mixer body, and enabling separation/storage while maintaining a storage container in a vacuum state, by dividing a vacuum space into two parts; and an operation method therefore. To this end, the vacuum mixer of the present invention comprises: a machine operation part (200) including a main body (210) having an inner space therein, a vacuum pump (230) provided in the inner space of the main body (210), and a rotary motor (240); a support part (300) of which a vacuum tube (320) connected to the vacuum pump (230) passes through the inside thereof, and formed to rise a predetermined height from the machine operation pan (200); a vacuum decompression part (400) provided at the upper part of the support part (300) and having a first vacuum chamber (450) formed therein and connected with the vacuum tube (320), wherein the upper and lower parts of the first vacuum chamber (450) communicate with the outside and the upper part of the first vacuum chamber (450) is selectively opened and closed by a first vacuum cap (430); and a vacuum grinding part (500) including the storage container (510) loaded on the machine operation part (200) and having a second vacuum chamber (580) formed therein and a mixer blade (515), which is connectedly provided to the rotary motor (240), mounted thereon, and a sealing cover (530) covering the storage container (510) so as to seal the same and having a second vacuum cap (540) provided to be selectively opened and closed at a part sealed from and connected to the lower part of the first vacuum chamber (450) of the vacuum decompression part (400)..
Ctmc Co., Ltd.

Vacuum pump and mass spectrometer

One or more through-holes communicating with one or more of the plurality of screw grooves are formed at the cylindrical stator, a total of circumferential dimensions of the one or more through-holes formed at the cylindrical stator is set at equal to or greater than a circumferential dimension of an outer peripheral surface region of the cylindrical stator facing the second suction port, and a gas path through which inflow gas through the second suction port is guided to a screw groove is provided, the one or more through-holes penetrating through the screw groove and the screw groove being apart from the region facing the second suction port.. .
Shimadzu Corporation

Shutter capable of obscuring light

A shutter for masking a surface allowing radiation, to pass at least partially. Includes a panel and a skirt forming, with the panel, an enclosure which, when applied to the surface, prevents the passage of at least a determined radiation, and at least one partial vacuum-based fixing system for temporarily fixing the enclosure onto said surface to which it is intended to be applied.
Airbus Operations S.a.s.

Nozzle for a vacuum pump or truck

A vacuum nozzle for a vacuum pump or truck, the vacuum nozzle comprising: a vacuum conduit configured to be connected to a vacuum source; a primary inlet fluidically connected to the vacuum conduit for receiving flow under suction; and a secondary inlet fluidically connected to the vacuum conduit for receiving flow under suction, the secondary inlet being positioned upstream of the primary inlet so as to allow flow to bypass the primary inlet, thereby preventing the primary inlet from sealing against a surface under suction.. .
Hydro International Plc

Film formation method and film formation thin film

A method for forming a thin film having durability at a low cost is provided. A film formation apparatus 1 is used in the film formation method.
Shincron Co., Ltd.

Vacuum pump

The present invention relates to a vacuum pump and, more specifically, to a vacuum pump that is designed to change the direction of an intake port formed on a side wall of a housing, according to necessity. The vacuum pump includes: a housing; an ejector part embedded in the housing; and a pressing means provided on the outside of the housing.
Vmeca Co., Ltd

Mounting base

A vehicle-roof mounting-base intended to temporarily mount lights, signs, kayaks, ladders, bicycles, and cameras, inter alia, on the roof of a vehicle with a steel or non-ferrous roof. The vehicle-roof mounting-base uses vacuum evacuation to adhere itself to a vehicle roof.

Film formation method and film formation thin film

A method for forming a thin film having durability at a low cost is provided. A film formation apparatus 1 is used in the film formation method.
Shincron Co., Ltd.

Cream-type cosmetic container having vacuum pump

Provided is a cream-type cosmetic container having a vacuum pump which is configured such that a pumping member performs a pumping operation to discharge contents when a handle part is rotated by a predetermined section. Thus, contents having high viscosity can be discharged even with a small force.
Yonwoo Co.,ltd

Vacuum pump of lightweight construction

A vacuum pump having a housing composed of light metal, in which a rotor composed of light metal is rotatably mounted. The rotor driving at least one vane, wherein the rotor is composed of light metal and has at least three different diameters along the axis of rotation thereof..
Magna Powertrain Bad Homburg Gmbh

Membrane vacuum pump

A membrane vacuum pump has at least one working space which is bounded by a membrane deformable to change the size of the working space and by a wall in which at least one inlet and at least one outlet are formed for a medium which is sucked into the working space which increases in size in so doing in a suction phase and is expelled via the outlet from the working space which decreases in size in so doing in a compression phase. The membrane vacuum pump furthermore has a controllable actuator unit for deforming the membrane by a contactless action on the membrane by means of electrical and/or magnetic fields..
Pfeiffer Vacuum Gmbh

Vacuum pump and system of a vacuum pump and an engine

A vacuum pump suitable for mounting to an engine includes a casing, a cavity in the casing having with an inlet and an outlet, a moveable member arranged for rotation inside the cavity, wherein the movable member is movable to draw fluid into the cavity through the inlet and out of the cavity through the outlet so as to induce a reduction in pressure at the inlet, an oil supply conduit for supplying oil from a reservoir to the cavity, and a check valve having a check valve body arranged in the oil supply conduit. The check valve meters the oil flow to the cavity dependent on an oil pressure so that on exceeding an upper oil pressure threshold the supply of oil to the cavity is stopped by means of the check valve..
Wabco Europe Bvba

Vacuum lift attachment

A vacuum lift attachment (10) for a hydraulic work machine, the hydraulic work machine including a control station, a lift arm to which the hydraulic work attachment can be coupled, an auxiliary hydraulic system for operating a coupled hydraulic work attachment and an auxiliary hydraulic actuator in the control station that upon actuation by an operator causes an auxiliary hydraulic control signal to generate. The vacuum lift attachment comprises a body (12) having an upper end (13) that is adapted to be coupled to the lift arm of the hydraulic work machine and for hydraulic fluid connection to the auxiliary hydraulic system of the hydraulic work machine, a vacuum pad (20) mounted to the lower end of the body (10), a hydraulic vacuum pump (34) fluidly connected to the auxiliary hydraulic system and an electronic controller (26) that is configured to receive an auxiliary hydraulic control signal and convert the auxiliary hydraulic control signal to an electronic signal for electronic control of the hydraulic vacuum pump (20) by an operator actuating the auxiliary hydraulic actuator in the control station..

Lacteal extractor safety pump system

A mechanical over-vacuum safety system and method of use for a vacuum pump system designed to extract milk from lactating mothers. The over-vacuum safety system includes at least one mechanical safety valve configured to reduce a vacuum in the pump system given an over-vacuum condition.
Medela Holding Ag

Wound closure and drainage system

A vacuum system for draining an open wound from liquids exuded therefrom, comprising an enclosure sealable to the wound circumference, a vacuum pump including a disposable pump unit detachably attachable to a non-disposable drive unit, and a waste container for collection of drained liquids. The enclosure has an outlet connected by means of a tube to an inlet of the pump unit and the waste container is connected to an outlet of the pump unit, such that when the vacuum pump is operated the drained liquids flow through the vacuum pump.
M.e.a.c. Engineering Ltd.

Three stage scroll vacuum pump

A three stage vacuum pump has three stages of fixed scrolls and orbiting scrolls that operate simultaneously. A motor drives the second orbiting scroll within the third fixed scroll upon three equally spaced idlers.

Negative pressure generating device and application thereof

The present invention provides a negative pressure generator comprising a vacuum pump having an intake end and an exhaust end, a soundproofing module having a compartment for accommodating the vacuum pump, the soundproofing module being configured to insulate noise and vibration generated when the vacuum pump is in operation, and a silencing tube module comprising a flexible intake tube having one open end communicating with the intake end of the vacuum pump and a flexible exhaust tube having one open end communicating with the exhaust end of the vacuum pump, the silencing tube module being configured to reduce noise generated at the intake end and/or the exhaust end of the vacuum pump when the vacuum pump is in operation. The negative pressure generator can provide a vacuum source to an oral interface device to favorably create a negative pressure environment in a user's oral cavity so that the patency of the user's upper airway is maintained..
Somnics, Inc.

Pumping method in a system for pumping and system of vacuum pumps

The present invention relates to a pumping method in a pumping system (sp, spp) comprising: a primary lubricated rotary vane vacuum pump (3) with a gas inlet port (2) connected to a vacuum chamber (1) and a gas outlet port (4) leading into a conduit (5) before coming out into the gas outlet (8) of the pumping system (sp, spp), a non-return valve (6) positioned in the conduit (5) between the gas outlet port (4) and the gas outlet (8), and an ejector (7) connected in parallel to the non-return valve (6). According to this method, the primary lubricated rotary vane vacuum pump (3) is set into action in order to pump the gases contained in the vacuum chamber (1) through the gas outlet port (4).
Ateliers Busch Sa

Ejector assembly and vacuum pump

The present invention relates to an ejector assembly and a vacuum pump, the ejector assembly including a typical cylindrical vacuum ejector and a support part. The support part includes a first support having a supply line extending outwards from a hole in which a first end of the ejector is mounted, and a second support having a discharge line extending outwards from a hole in which a second end of the ejector is mounted.
Vmeca Co., Ltd.

Motor vehicle vacuum pump having an adhesive

The invention relates to a motor vehicle vacuum pump having a pump housing surface, on which a noise absorption cap is mounted, said cap defining a noise damping volume.. .
Magna Powertrain Huckeswagen Gmbh

Vacuum sewage system with monitoring system and use

A vacuum sewage system includes a collection station, a vacuum pump, a sewage pump, a collection tank, a control system, a valve pit, a first conduit extending from the collection station to the valve pit, a second conduit extending from the valve pit and terminating in a closed end, a valve located in the valve pit for selectively permitting sewage and waste water to flow from the valve pit toward the collection station upon activation of the valve, an electric air admission controller or a solenoid for selectively opening and closing the valve, a first sensor associated with the electronic air admission controller or the solenoid and a second sensor located adjacent the closed end of the second conduit. The system may be utilized to monitor and remedy various undesirable operating conditions in the system and to perform routines to increase operating efficiency of the system..
Bilfinger Water Technologies, Inc.

Printing base and inkjet printing method

A printing base comprises: a carrying base, an extension base, a vacuum pump and a gas injection valve; the extension base is located at the periphery of the carrying base; the surface of the carrying base has at least one absorbing hole for absorbing the substrate, and the surface of the extension base has at least one injecting hole. By adding a extension base at the periphery of the carrying base, the invention can avoid the provision of test area at the periphery of the display area on the substrate, and increase the area of the display area, and in turn reduce the bezel width of the liquid crystal display panel..
Boe Technology Group Co., Ltd.

Drainage system and vacuum pump for intrauterine vacuum therapy

Postpartum uterine atony, with life-threatening bleeding, and infections of the endometrium following abortion or birth, can be treated using vacuum therapy. There are no existing drainage systems or vacuum pumps that are suitable for intrauterine therapy.
Lohmann & Rauscher Gmbh & Co. Kg

Electron microscope

There is provided an electron microscope capable of easily achieving power saving. The electron microscope (100) includes a controller (60) for switching the mode of operation of the microscope from a first mode where electron lenses (12, 14, 18, 20) are activated to a second mode where the electron lenses (12, 14, 18, 20) are not activated.
Jeol Ltd.

Rotor disc and rotor for a vacuum pump

A rotor disc for a vacuum pump, in particular a turbo molecular pump, having an inner ring. The inner ring is connected to a plurality of blade elements extending radially outward.
Oerlikon Leybold Vacuum Gmbh

Internal combustion engine

An internal combustion engine includes an intake camshaft, a vacuum pump, an oil pump, and an oil feeding passage serving as an oil supplying path. The vacuum pump includes a rotor and a housing.
Toyota Jidosha Kabushiki Kaisha

Machine for coating an optical article with an anti-soiling coating composition and using the machine

A machine for coating an optical article with an anti-soiling coating composition, includes a vacuum chamber (8) configured to receive the optical article, a vacuum pump (20) connected to the vacuum chamber (8), a plasma generator (11) configured to carry out a vacuum plasma treatment of the optical article, an evaporation device (10) configured to carry out a vacuum evaporation treatment of the composition for depositing it on the optical article, a control unit (2) controlling the plasma generator for removing an initial outermost anti-soiling coating of the article, controlling the evaporation device for recoating the article with the anti-soiling coating composition, being configured to causes the vacuum pump (20) to suck gases from the chamber (8) during vacuum plasma treatment and being further configured to causes the vacuum pump (20) not to suck gases from the chamber (8) during vacuum evaporation treatment.. .
Satisloh Photonics Ag

Plastic rotor for a vacuum pump

A rotor for a vane cell pump—in particular, for a vacuum pump—with a base body that is made of plastic and can be driven by rotation, and that rotates about an axis of rotation during operation, wherein the base body comprises a guiding section for slidably receiving a pump vane and wherein the base body is flanked in the direction of the axis of rotation by a first bearing surface and a second bearing surface, wherein the second bearing surface comprises bearing sections that are at a distance from one another and that lie on a circular path that is arranged concentrically to the axis of rotation.. .
Joma-polytec Gmbh

Vane for a vane cell pump and vane cell pump

A vane for a vane cell vacuum pump. The vane can be rotated about an axis of rotation by a rotor in a pump chamber and guided in the longitudinal direction in the rotor, with an upper side and a lower side to abut against the bottom and the ceiling of the pump chamber, with a rear side opposite a front side to limit the pressure chambers, with at least one face to slidably abut against an inside wall of the pump chamber on the casing side.
Joma-polytec Gmbh

Organic garbage and kitchen waste processing assembly

A processing assembly for processing kitchen organic garbage and waste of farms includes a tank with a grinder located therein. The grinder grinds the garbage and waste by blades and rotatable blades.

Vacuum exhaust system of sterilizer

The present invention relates to a vacuum exhaust system of a sterilizer, comprising: a sterilization chamber; a first vacuum pump connected to one side of the sterilization chamber; an oil mist trap section for exhausting steam incoming from the sterilization chamber via the first vacuum pump; and a second vacuum pump connected to the first vacuum pump and the oil mist trap section. The vacuum exhaust system of a sterilizer according to the present invention comprises the second vacuum pump connected to the first vacuum pump and the oil mist trap section, wherein by turning the second vacuum pump on to apply a vacuum to the operating oil in the first vacuum pump, thereby providing a certain pressure for evaporating water in liquid state to the first vacuum pump, the present invention can vaporize the water vapor trapped in the operating oil in the first vacuum pump..
Cmtech Co., Ltd.

Motor vehicle vacuum pump

A motor vehicle vacuum pump includes a pumping chamber in which a pump rotor rotates to compress a gas, an outlet chamber into which the gas exits, a separation wall which includes a valve opening and a valve seat arranged on an outlet side of the separation wall around the valve opening. The separation wall separates the pumping chamber from the outlet chamber.
Pierburg Pump Technology Gmbh

Control vehicle

A vehicle having a valve stop mode control unit configured such that an intake valve and an exhaust valve are stopped in a closed state during rotation of an output shaft, supply of fuel to an engine is stopped, a clutch is made to be in an engaged state, and pistons are driven by rotational forces from driving wheels through the output shaft. When there is a request for valve stop inertial running, a negative pressure is supplied to an intake passage by a vacuum pump..
Toyota Jidosha Kabushiki Kaisha

Motor vehicle assembly arrangement with an internal combustion engine and a switchable vacuum pump

An arrangement of motor vehicle units includes a vacuum pump, a power brake unit, a pump which pumps a hydraulic fluid with a control pressure, and a control valve. The vacuum pump comprises a pump rotor, a coupling element, a control connection, a coupling arrangement switchable by the control connection to lock/unlock the coupling element with the pump rotor, and a suction connection.
Pierburg Pump Technology Gmbh

Systems and methods for detection and mitigation of liquid fuel carryover in an evaporative emissions system

Methods and systems are provided for detecting and mitigating the presence of liquid fuel carryover in an evap system of a vehicle in response to a refueling event. In one example, during a first condition, a vacuum pump is activated to pressurize the fuel system responsive to a first fuel tank pressure decay rate being less than a threshold, and responsive to a second fuel tank pressure decay rate being greater than a threshold, the vacuum pump is maintained on until a fuel tank pressure decreases to atmospheric pressure.
Ford Global Technologies, Llc

Fan scrubber and vacuum pump apparatus

The fan scrubber is provided with a casing having a gas draw-in port and a gas ejection port, a fan disposed in the casing, a nozzle from which a liquid is jetted into the casing, and a canned motor connected to the fan. The canned motor has a main shaft connected to the fan, a rotor which rotates integrally with the main shaft, a stator disposed on the periphery of the rotor, a motor casing in which the rotor and the stator are housed, and a can which partitions the interior of the motor casing into a rotor chamber in which the rotor is disposed and a stator chamber in which the stator is disposed..
Ebara Corporation

Vacuum pump

To provide a vacuum pump capable of heating only a flow channel extending from the vicinity of an exit of a thread groove exhaust flow channel toward an outlet port and prevents the accumulation of a product that is caused by a decrease in the temperature of process gas near the exit of the thread groove exhaust flow channel and the flow channel. A vacuum pump has a thread groove exhaust portion that has thread groove exhaust flow channels at least in respective parts of portions on inner and outer circumferential sides of a rotor (rotating body), a casing enclosing the thread groove exhaust portion, an outlet port for exhausting gas compressed by the thread groove exhaust portion to the outside of the casing, and a partition wall that covers a flow channel extending from the exits of the thread groove exhaust flow channels toward the outlet port..
Edwards Japan Limited

Motor vehicle vacuum pump having a switchable clutch

A motor vehicle vacuum pump includes a pump rotor, a coupling element, and a clutch arrangement. The clutch arrangement locks or releases the coupling element to/from the pump rotor so that the coupling element rotates together with or is released from the pump rotor.
Pierburg Pump Technology Gmbh



Vacuum Pump topics:
  • Vacuum Pump
  • Fertilizer
  • Fertilizers
  • Semiconductor
  • Stimulator
  • Spinal Cord
  • Implantation
  • Wound Dressing
  • Delivery Tube
  • Internal Combustion Engine
  • Pressure Wound
  • Open Wound
  • Flow Control
  • Stator Core
  • Microwave Plasma


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    This listing is a sample listing of patent applications related to Vacuum Pump for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Vacuum Pump with additional patents listed. Browse our RSS directory or Search for other possible listings.


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