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Patent Searching and Data


Matches 251 - 300 out of 3,481

Document Document Title
WO/2010/106177A1
A meter pump assembly, in particular for hydrocarbon delivery in a fuel-operated vehicle heating device or a reformer, comprises two delivery units (12, 14), wherein each delivery unit (12, 14) comprises: a delivery chamber (16, 18) havi...  
WO/2010/087089A1
Disclosed is a diaphragm pump that reduces pressure ripples in the discharged gas. This diaphragm pump (1) is a pump which transports a gas by means of volumetric changes in a pump chamber (12), and is equipped with: a discharge valve (3...  
WO/2010/085840A1
Check valves for positive displacement pumps with an extended capacity to sealingly enshroud granules, and check vent valves with capacity to capture a quantity of fluid during a pump delivery stroke, and return that quantity of fluid to...  
WO/2010/078778A1
An upright self-sucking piezoceramics pump includes a pump body (1) provided with a liquid inlet cavity and a liquid outlet cavity, a pump cover (6) and a check valve (3), a piezoceramics energy conversion piece (7) is installed in a pum...  
WO/2010/071948A1
A multi-stage pump system for use in desalination systems including a first stage (S1) providing low pressure for priming the system a second stage (S2) that is in fluid communication with the first stage and is primed by the low pressur...  
WO/2010/069963A1
The invention relates to a motor-pump assembly (1), in particular for providing pressure for a brake actuating device of a motor vehicle brake system, having a pneumatic brake booster, in particular a vacuum brake booster, comprising a p...  
WO/2010/069965A1
The invention relates to a motor-pump assembly 1, in particular for providing pressure for a brake actuating device of a motor vehicle brake system, having a pneumatic brake force booster, in particular a vacuum brake force booster, comp...  
WO/2010/049199A1
The invention relates to a membrane pump with a multi-part pump housing, an intake valve, an output valve and at least one operating membrane, wherein the pump housing is a basic housing with intake channel and output channel, an interme...  
WO/2010/035862A1
A piezoelectric pump capable of surely discharging a gas and surely delivering a liquid even if driven intermittently. The piezoelectric pump (101) comprises a piezoelectric oscillator (65), a diaphragm (64) bent and deformed by the piez...  
WO/2010/032607A1
Provided is an electronic device wherein sound waves leaking out to the outside from a communicating hole of a casing are attenuated and sound wave leakage is suppressed. The electronic device has, inside a casing (1), a sound wave gener...  
WO/2010/002116A3
The present invention is a hot water boiler which prevents falling scale from collecting around the drive shaft of the motor by placing a pumping member such as an impeller in the lower part of the water tank and the motor for driving th...  
WO/2010/019470A1
A tubular fluid pump is provided. The pump includes a chamber for receiving and discharging fluid, and a squeezing mechanism for pumping fluid through the chamber. The chamber has a first end with a first opening, a second end with a sec...  
WO/2009/137346A3
A peristaltic pump uses a length of elastic tube with an inlet at one end and an outlet at the second end for delivering fluid material an outlet pressure greater than the inlet pressure. A support element disposed along the length of el...  
WO/2010/003272A1
A gas extraction apparatus includes: a rotary power source (10) having a spindle (11); an eccentric seat (20) having an input end (21) and an output end (22), said output end (22) being eccentrically provided with respect to said input e...  
WO/2010/002116A2
The present invention is a hot water boiler which prevents falling scale from collecting around the drive shaft of the motor by placing a pumping member such as an impeller in the lower part of the water tank and the motor for driving th...  
WO/2009/148005A1
Provided is a piezoelectric microblower which can be made compact while attaining good blower characteristics. At a part of a blower chamber (4) corresponding to the central portion of a vibration board (50), a resonance space (34) is fo...  
WO/2009/148008A1
Provided is a piezoelectric micro-blower in which the vibrations of a vibrating plate do not readily leak to the outside and energy losses can be reduced. The micro-blower has an inner case (1) in which the periphery of a vibrating plate...  
WO/2009/145064A1
A piezoelectric microblower which can efficiently transport a compressible fluid without using a check valve, thereby realizing increase in a flow rate. A blower body (1) is provided with a first wall portion (30) and a second wall porti...  
WO/2009/137862A1
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). Each piston (15) is sealingly connected to the body (...  
WO/2009/137346A2
A peristaltic pump uses a length of elastic tube with an inlet at one end and an outlet at the second end for delivering fluid material an outlet pressure greater than the inlet pressure. A support element disposed along the length of el...  
WO/2009/128394A1
A non-return valve structure wherein deformation of a diaphragm-like non-return valve is suppressed. A gas suction valve (20) has a non-return valve structure which permits flow of gas from an inner space of a diaphragm pump toward a pum...  
WO/2009/112866A1
A fluid pump comprising a chamber which, in use, contains a fluid to be pumped, the chamber including a main cavity having a substantially cylindrical shape bounded by first and second end walls and a side wall and a secon dary cavity ex...  
WO/2009/103217A1
A multi-stage diaphragm pump has a casing in which is provided a plurality of gas chambers, wherein each gas chamber has a gas inlet valve, a gas outlet valve and an elastic diaphragm (6), the elastic diaphragm (6) of each gas chamber is...  
WO/2009/095771A1
The present invention relates to an apparatus for recovery of kinetic energy from moving wheeled vehicles which includes at least one fluid filled pipe capable of substantially collapsing on impact with the wheels of the vehicle to provi...  
WO/2009/087714A1
A simply constructed space saving diaphragm air pump in which air suction noise is effectively reduced. A diaphragm (3) to which a piezoelectric element (9) is bonded is supported by a housing (2) to form a pump chamber (5) between the h...  
WO/2009/016603A3
The invention concerns a reduced pressure wound treatment apparatus (10). The apparatus has a disposable and replaceable vacuum pump (28) which includes a suction chamber (44) and a suction line (24) which is connected between the suctio...  
WO/2009/075581A1
The invention is concerned with a chamber amending its volume by displacement free of leakage of a surface element constituting one of the end surfaces of the chamber. The side walls of the chamber comprise a selected number of sleeves w...  
WO/2009/000895A3
Fluid circulation pump. According to the invention, said pump is a vibrating-diaphragm pump (33) comprising a pump body (10) and means (70) for short-circuiting said pump body (10). Switching means (71) are designed to select for said fl...  
WO/2009/068180A1
The invention relates to a multi-level membrane suction pump having at least two pump chambers, comprising each a fluid inlet with at least one inlet valve and a fluid outlet with at least one outlet valve, and having a suction line conn...  
WO/2007/050533A3
A method of making a piezoelectric fan includes using a portion of the fan blade material as the substrate for the electronic circuit. By this method a single material may serve as both the substrate for the electronic circuitry and as t...  
WO/2008/059494A3
The present invention discloses a peristaltic pump which comprises of a plurality of effecters, actuated in a periodic manner upon by obstructive forces of a flexible infusion tube so as flow of infusion fluid is provided along said infu...  
WO/2009/052842A1
The invention relates to a membrane pump (10) comprising a pump chamber (26) with an inlet opening (28) and an outlet opening (30). The invention also relates to a passive silicon non-return valve (32) that is arranged on the inlet openi...  
WO/2008/059498A3
The present invention discloses a keying mechanism for a finger-type peristaltic infusion pump (DDS) operated by a specified pumping protocol, the DDS is interconnected with one of a plurality of passive mechanical interface (MS) that ac...  
WO/2009/050990A1
[PROBLEMS] A piezoelectric micro-blower that can transfer a large amount of compressive fluid without using a check valve and in which noise leaking to the outside is suppressed. [MEANS FOR SOLVING PROBLEMS] A first wall (12) and a secon...  
WO/2008/059492A3
The present invention discloses a finer-type peristaltic infusion pump comprising a ribbed anvil. More specifically, a finger-type peristaltic pump, comprising a plurality of pressing-fingers, infusion-tube, and a passive interfacing mec...  
WO/2008/059493A3
The present invention discloses an OPEN/CLOSE mechanism which comprises of a passive mechanical interface (MS) and a finger-type peristaltic infusion pump (DDS). The MS is an elongated member characterized by upstream and downstream oppo...  
WO/2009/004519A3
A pneumatic pump for inflatable partitions of a support, and a bedsore-preventing mattress suitable for use with such pump, are disclosed. The pump is of the type suited to deliver pressurised air to a plurality of outlet ports which are...  
WO/2009/042192A1
A peristaltic pump assembly includes a pump body including a mounting pin coupled thereto. A removable cassette is slidably received on the mounting pin and is secured to the pump body via a retaining feature. The mounting pin is also co...  
WO/2009/031543A1
[PROBLEMS] A technique for a variable air volume type electromagnetic pump for compressing air and discharging the compressed air. Even in a low air volume operation, the technique enables an automatic stopper mechanism to operate approp...  
WO/2009/015896A1
The present invention in one embodiment is a vacuum pump including a compressible elastomeric member with an internal reservoir enclosing a volume of fluid, an outlet port providing fluid communication between the internal reservoir and ...  
WO/2009/015528A1
A membrane pump includes a casing (1), a membrane pump assembly and an eccentric wheel (3) driven by an electric motor (2). Said membrane pump assembly is comprised of a gas outlet cover (4-5), a rotary support (4-2), a center connecting...  
WO/2007/025268A3
Rotary axial peristaltic pumps, related methods and components. The rotary axial peristaltic pump generally comprises a platen having a platen surface, a tube positioned adjacent to the platen surface, cam that rotates about a rotational...  
WO/2009/000895A2
Fluid circulation pump. According to the invention, said pump is a vibrating-diaphragm pump (33) comprising a pump body (10) and means (70) for short-circuiting said pump body (10). Switching means (71) are designed to select for said fl...  
WO/2008/110022A3
A vacuum diaphragm pump unit comprises a dimensionally stable diaphragm base (1), a dimensionally stable one-piece diaphragm cover (3) having a bottom area and a side wall (36) that extends around the bottom area and widens towards the e...  
WO/2008/129829A1
A hollow board-like fan main body (15) has an air chamber (14) between a front surface section (11) and a rear surface section (12) arranged to face each other. The fan main body is provided with a plurality of suction ports (33) which b...  
WO/2007/109382A3
A surgical cassette having a chamber for fluidly coupling to a source of vacuum in a surgical console and a bubble breaking structure disposed within the chamber. The cassette protects the source of vacuum from liquid.  
WO/2008/114572A1
Provided is a vibration generating/cooling apparatus, which performs low-volume, energy saving and effective heat transfer by generating a convective flow inside and outside a case. The vibration generating/cooling apparatus is provided ...  
WO/2008/110022A2
A vacuum diaphragm pump unit comprises a dimensionally stable diaphragm base (1), a dimensionally stable one-piece diaphragm cover (3) having a bottom area and a side wall (36) that extends around the bottom area and widens towards the e...  
WO/2008/111397A1
[PROBLEMS] To provide a small fluid transportation device for transporting fluid efficiently through a simple structure. [MEANS FOR SOLVING PROBLEMS] A fluid transportation device comprises a substrate (10), and a disc like piezoelectric...  
WO/2008/108229A1
A diaphragm is provided in a pump case and defines a pump chamber. A swing body has a recessed part. A shaft member connects a rotary body to the swing body to deform the diaphragm so that the capacity of the pump chamber is changed, whe...  

Matches 251 - 300 out of 3,481