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Matches 251 - 300 out of 3,458

Document Document Title
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/2010/019470A1
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/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/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/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/2009/137346A3
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/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/2009/075581A1
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/2009/068180A1
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/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/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/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/2009/016603A3
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/2009/015896A1
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/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/2009/000895A3
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/2009/000895A2
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/2008/129829A1
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/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/2008/110022A3
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/2008/111397A1
[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...  
WO/2008/105414A1
A diaphragm is provided in a pump case and defines a pump chamber. A rocking body has a cavity and a circular tube section that communicates with the pump chamber. A shaft member connects a rotating body and the rocking body such that th...  
WO/2008/105413A1
A diaphragm defines a pump chamber. A rocking body is attached to the diaphragm. A motor has a stationary motor body and a rotor rotatable relative to the motor body. A shaft member connects the rotor and the rocking body such that the d...  
WO/2008/101517A1
A compact pump or compressor housing includes at least a first and second compression or working chamber. The housing has at least a first internal flow channel or conduit fluidly interconnecting the first and second working chambers. Th...  
WO/2008/095352A1
An inflating device comprises a valve body and a compressible bladder. The valve body has a inlet and a unidirectional outlet. The bladder is attached to the valve body, and communicates with the outlet and the inlet by the passages with...  
WO/2008/089813A1
A diaphragm pump (1) has two diaphragm heads (15), in each case two diaphragms (6) and two separate pump housings (3) in which the connecting rods (5) for the diaphragms (6) are arranged, which connecting rods (5) can be driven by a comm...  
WO/2008/069266A1
[PROBLEMS] A piezoelectric micro-blower capable of efficiently conveying a compressive fluid without the use of a check valve and achieving a sufficient flow rate. [MEANS FOR SOLVING PROBLEMS]A first wall section (1a) and a second wall s...  
WO/2008/069264A1
[PROBLEMS] A piezoelectric pump having a simple structure and high discharge pressure. [MEANS FOR SOLVING PROBLEMS] A first opening (11) is formed at the center of a pump body (10), and a second opening (12) is formed at a position away ...  
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/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/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/2008/031929A1
Simple reciprocating pump intended to raise a non-lubricating liquid (petrol, alcohol, liquefied gas, etc.) to a very high pressure, of up to several thousand bar. The pump is made up of a casing (1), the interior of which is separated i...  
WO/2008/007634A1
[PROBLEMS] To provide a piezoelectric pump capable of obtaining a large displacement amount at a central portion of a piezoelectric element even if drive voltage is comparatively low and preventing generation of shortcircuit attributed t...  
WO/2008/000774A1
A method (200) and apparatus for updating a square root matrix of a covariance matrix when sample sets are added to or removed from a received signal. When a sample set is added to the received signal (220), a processor augments the squa...  
WO2007088530A8
A suction head in fluid communication with a pump head provides a sub- ambient working pressure to a target area, enabling drainage thereof to a waste container. The pump head is coupled non-mechanically to a pump drive. A control system...  

Matches 251 - 300 out of 3,458