|
Match
|
Document |
Document Title |
|
|
7491039 |
Compressor
An air compressor formed of a plurality of collapsible members engaged between opposing rotating side members. The collapsible members alternate between a collapsed state and enlarged state during...
|
|
|
6935846 |
Dosing pump
The invention relates to a dosing pump comprising a chamber, an inlet valve located in an inlet pertaining to said chamber, and an outlet valve located in an outlet pertaining to said chamber. The...
|
|
|
6889765 |
Submersible well pumping system with improved flow switching mechanism
The invention generally concerns a submersible well pumping system comprising an axially elongated housing and a multi-chamber hydraulically driven diaphragm pump suspended in a well. The pump is...
|
|
|
6874997 |
Pump system using a control fluid to drive a switching valve mechanism for an actuating fluid
There is provided a pump system excellent in a maintenance ability and compatibility. The pump system comprises a pump ( 1 ) for transferring a liquid by alternately supplying air to air chambers (...
|
|
|
6814553 |
Dual reciprocating bellows pump, with a pair of interlocking shafts passing through a common pump head and dual pump chambers
The present invention is to provide a dual reciprocating bellows pump which can facilitate size reduction design of the whole pump, permit pump manufacture at low cost, and permit reducing the dead...
|
|
|
6685449 |
Fluid apparatus including gravity induced check valves and downwardly inclined lower lamella portion of a bellows
A bellows that is extendingly and contractingly deformable in the axial direction is placed in a pump body, and a liquid chamber is formed inside the bellows. A suction port and a discharge port...
|
|
|
6595280 |
Submersible well pumping system with an improved hydraulically actuated switching mechanism
The invention generally concerns a submersible well pumping system comprising an axially elongated housing having a diameter less than the bore hole of the well, a multi-chamber hydraulically...
|
|
|
6325932 |
Apparatus and method for pumping high viscosity fluid
A system for dispensing and filtering fluid is disclosed, in which the fluid flow path is substantially vertical from the fluid inlet through fluid dispense. Substantially all wetted surfaces are...
|
|
|
6071094 |
Photoresist dispense pump
A photoresist dispense pump receives photoresist from two pipelines, a first pipeline and a second pipeline, and pumps out the photoresist through a third pipeline. The photoresist dispense pump...
|
|
|
6059546 |
Contractile actuated bellows pump
A pump for impelling a fluid includes a first variable volume, the first variable volume having a first inlet for allowing the influx of the fluid into the first variable volume and a first outlet...
|
|
|
6017198 |
Submersible well pumping system
The invention generally concerns a submersible well pumping system comprising an axially elongated housing having a diameter less than the bore hole of the well, a multi-chamber hydraulically...
|
|
|
5934888 |
Aspirator pump
An aspirator pump, especially for medical purposes, has a receptacle with two chambers arranged alongside each other, which are connected with a suction tube, and on each of which an element is...
|
|
|
5770118 |
Bubble generator for a washing machine
A bubble generator for a washing machine which utilizes bellows and an actuating cam for actuating the bellows is disclosed. The bubble generator includes a housing and a body installed within the...
|
|
|
5709197 |
Fuel pump
Fuel is pressurized by the expansion and contraction of a pump chamber defined inside a casing according to the rotation of a power input shaft which penetrates from the outside of the casing into...
|
|
|
5700135 |
Bellows cam plate pump
A cam plate pump comprises a pressurizing chamber formed by a bellows which elongates and contracts along a center axis parallel to the input shaft of the pump. The cam plate rotates together with...
|
|
|
5641270 |
Durable high-precision magnetostrictive pump
A magnetostrictive pump is provided which makes use of a magnetostrictive element which, when an alternating magnetic field is applied to it, compresses a chamber containing a working fluid. A...
|
|
|
5588811 |
Air bed diaphragm pump
A diaphragm pump comprised of a shaft, means for rotating the shaft at a speed of less than 3,000 revolutions per minute, a first connecting rod connected to a first diaphragm and operatively...
|
|
|
5573385 |
Dual chamber pump
The present invention provides an improved design for a mechanical pump. The pump is a dual chamber design typically including a pair of expandable bellows driven in a reciprocating fashion by a...
|
|
|
5388576 |
Inflatable resuscitation device
A pulmonary resuscitator is set forth of the type having a compressible bladder to be depressed to supply air to a mask. Both the compressible bladder and mask have integral therewith a network of...
|
|
|
5383334 |
Compressor integral with stirling engine
A compressor integral with a Stirling engine having a pressure space comprises a housing, a partition wall provided in the housing, a first pressure chamber defined in the housing at one side of...
|
|
|
5381675 |
Force-sparing balanced bellows refrigeration device
The force sparing temperature changer operates through at least two air evacuated bellows. The relative positions of the chambers are such that the moving walls of the chambers face each other and...
|
|
|
5375430 |
Gravity powered shoe air conditioner
A compressor-expander type cooling, or heating system, is incorporated into a heel of a shoe, and is powered by reciprocal gravity pressures upon the shoe which occur naturally during walking. The...
|
|
|
5346369 |
Bilge pump actuated by wave motion
A pump actuated by a reciprocal oscillating motion, the pump including a casing member enclosing an elongated substantially cylindrical chamber therewithin, a pair of flexible bellows disposed at...
|
|
|
5308230 |
Bellows pump
A metallic bellows pumps for pumping corrosive, caustic, acidic or toxic fluids which includes a casing with an annular bellows portion within said casing with one end affixed to the casing and the...
|
|
|
5304129 |
Pivotable foot operated breast pump
A breast pump includes a platform resting on the floor or other support and a treadle having a convex surface resting on the platform, permitting a pivoting or see-saw motion of the treadle. A...
|
|
|
5224841 |
Pneumatic bellows pump with supported bellows tube
A low contamination double bellows pump suitable for providing relatively constant pressure and delivery. The illustrated pump includes two pumping chambers with bellows arranged in opposed...
|
|
|
5195878 |
Air-operated high-temperature corrosive liquid pump
A liquid pump is disclosed having a center block containing inlets and outlets for liquid to be pumped and air to operate the pump with associated valves for liquid and air. A pair of opposed...
|
|
|
5158439 |
Pneumatic pumping device
A pneumatic pumping device incorporating a movable valve such as a bellows, or a diaphragm, driven by air back pressure in a cylinder so that a liquid is drawn in and discharged by reciprocating...
|
|
|
5141412 |
Double acting bellows-type pump
A double acting, self-priming bellows-type pump has a pair of bellows that work as displacement elements arranged each in a cylinder chamber mutually and synchronously interlocked by piston rod, so...
|
|
|
5088284 |
Compressor integral with Stirling engine
There is disclosed an oil-free compressor integral with a Stirling engine. The compressor is used as an air compressor or in air-conditioning equipment. The Stirling engine has a cylinder in which...
|
|
|
5088903 |
Compressor, spray apparatus using the compressor, and air brush for the spray apparatus
A small and lightweight compressor has a motor which generates rotational drive which is converted into reciprocating movement to actuate an air compressing mechanism to thereby discharge...
|
|
|
5073094 |
Zero net external displacement implantable pump and driver
A zero net external displacement implantable pump for the transfer of accumulated body fluids, such as transfer of ascites fluid from the peritoneum to the vasculative system. The pump includes a...
|
|
|
4983104 |
Bellows-type pump
A bellows-type pump having a support ring positioned interiorly within the coil of the plastic bellows. The support ring is initially coiled to a diameter smaller than the normal bellows coil...
|
|
|
4902206 |
Bellows pump
A bellows pump which is disclosed herein has two bellows made of a plastic material and provided with liquid inlet and outlet ports for transferring a liquid by expanding and contracting the...
|
|
|
4869397 |
Adjustable fill motor assembly
A control arrangement is provided which permits precise metering of a bellows pump. The control arrangement permits the predetermined setting of an amount of fluid to be dispensed from a single...
|
|
|
4838462 |
Double bellows purge valve
A liquid dispensing unit is described. The unit includes a first valve element that is held within a liquid passageway by a first spring mechanism. This spring mechanism is designed to yield under...
|
|
|
4832580 |
Fluid pressurizing delivery pump system
Provided are a pair of pumps, each of which comprises a bellows having an intake inlet and a discharge outlet, a reciprocating drive means for contraction and expansion movements of the bellows,...
|
|
|
4750868 |
Pump with continuous inflow and pulsating outflow
A pump with a continuous inflow and a pulsating outflow comprises a first chamber and a second chamber with a passage between them and made at least partly from a flexible material. There is an...
|
|
|
4745846 |
Devices which take in and expel fluid by a chamber which may border a coned ring
In a fluid pump or motor improvements are provided to the piston shoes therein to permit a higher pressure in the respective device. Other improvements are done to the hydrostatic bearings in...
|
|
|
4734013 |
Rotary pressure intensifier
A pressure intensifier for a fluid comprises at least three piston assemblies disposed along mutually parallel axes equiangularly disposed with respect to a central axis of the intensifier and...
|
|
|
4723894 |
Low-pressure air pump
A motor-driven continuously running system wherein multiple reciprocating bellows units are disposed in angularly spaced relation about the rotary axis of a swashplate. Each bellows is...
|
|
|
4718836 |
Reciprocating completely sealed fluid-tight vacuum pump
A completely dry fluid-tight reciprocating vacuum pump comprises one or more pumping chambers defined between two rigid parts which face one another in the axial direction. One is reciprocated in a...
|
|
|
4718893 |
Pressure regulated implantable infusion pump
An implantable infusion pump (20) for infusing drugs or other chemical or solutions into the body. A movable diaphragm (26) forming a variable volume drug chamber (22). A fluid piston (32) opposing...
|
|
|
4618425 |
Pump for pumping corrosive fluids
A submersible pump and filter unit for pumping and filtering acids comprises a removable pump cartridge (13) and filter unit (14) housed in respective cylindrical cavities (11, 12) in a housing...
|
|
|
4536136 |
Film-made pump driven by the filling effect of a fluid on filling into a chamber made of film
A method and apparatus advantageously using the shapeless and flowing characteristics of a fluid. The fluid is contained with a suitable film chamber having a given shape; a frame or the like may...
|
|
|
4305211 |
Vacuum dryer
A dryer for the drying of clothing and other articles by use of a vacuum. A vacuum is applied to the internal chamber of the rotating drum by means of a swash plate which rotates simultaneously at...
|
|
|
4302163 |
Adjustable output pump for liquids
An adjustable expansible chamber pump for liquids is disclosed, which is resistant to corrosion and which preferably utilizes a compressible bellows of synthetic plastic material, which is compact,...
|
|
|
4289455 |
Devices for extracting energy from waves
The invention relates to a device for extracting energy from waves and having a pump arranged to be operated by relative motion between members of the device in response to waves. The pump...
|
|
|
4179244 |
Rotary low pressure air displacement pump
A low pressure air displacement pump including one or more cylinders or bellows powered by rotary or reciprocating motivation means. This device employs two or more bellows radially disposed and...
|
|
|
4122756 |
Vapor engine
A vapor engine using a refrigerant as its working medium and having a number of bellows each forming an expansion chamber which receives the working medium and changing its volume under the...
|