Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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| Number | Title | Issue Date |
| 8197233 | Diaphragm pump A pump is provided including a housing and a plurality of diaphragm assemblies radially disposed within the housing, each diaphragm assembly of the plurality of diaphragm assemblies including a diaphragm. A drive element is configured to be eccentrically coupled to ... | 06/12/2012 |
| 8133042 | Chemical liquid supplying apparatus and pump assembly A chemical liquid supplying apparatus, which can discharge chemical liquid with high precision, is provided. A pump assembly is detachably mounted in a pump case in which liquid inflow and discharge ports are formed. The pump assembly includes: a cylindrical body in... | 03/13/2012 |
| 8079835 | Air compressor An air compressor includes a chassis that supports thereon a motor, a transmission set, and a plurality of extendible barrels. The transmission set includes a clutch that is operatively coupled to the motor through a belt. Two eccentric rotation members are respecti... | 12/20/2011 |
| 7225959 | Portable, battery-powered air compressor for a pneumatic tool system A portable pneumatic fastening tool has an onboard compressor assembly to alleviate the need for an external air compressor. The onboard compressor assembly includes a motor and a compressor mounted to the tool body. The motor can be powered by a detachable battery ... | 06/05/2007 |
| 7168928 | Air driven hydraulic pump An air driven hydraulic pump includes two opposed cylinders to either side of a center section. Two pneumatic pistons are slidable in the opposed cylinders and are coupled with one another by a common shaft extending through the center section. The pneumatic pistons... | 01/30/2007 |
| 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 chamber is divided into two partial chambers (2, 18) by a sepa... | 08/30/2005 |
| 6924890 | Measuring method for individual fibers of cables In a method for measuring relevant parameters of individual fibers of single-mode and multimode fibers of glass- or plastic-fiber cables, measuring radiation is reflected at the end of the test fiber to the fiber input by a mirror, particularly a Schmidt mirror havi... | 08/02/2005 |
| 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 driven by a self-contained, closed hydraulic system, activated by an e... | 05/10/2005 |
| 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 (17a, 17b) to extend and contract a p... | 04/05/2005 |
| 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 spaces in pumping chambers to provide improved self-suction performa... | 11/09/2004 |
| 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 are formed in an inner bottom face of the pump body facing t... | 02/03/2004 |
| 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 driven diaphragm pump, suspended in the well. The pump is drive... | 07/22/2003 |
| 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 Teflon.RTM. or some similar non-contaminating fluid, for ap... | 12/04/2001 |
| 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 contains a first bellows and a second bellows receiving phot... | 06/06/2000 |
| 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 for allowing the efflux of the fluid out of the first vari... | 05/09/2000 |
| 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 driven diaphragm pump, suspended in the well using coiled tubin... | 01/25/2000 |
| 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 arranged which is movable approximately parallel to the other... | 08/10/1999 |
| 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 housing. The body includes inlets for inflow of air at one... | 06/23/1998 |
| 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 its inside. A first seal member is provided between the ca... | 01/20/1998 |
| 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 the input shaft, and compresses the bellows via a piston. ... | 12/23/1997 |
| 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 bellows located within the working fluid is repeatedly compres... | 06/24/1997 |
| 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 connected to the shaft, a second connecting rod connected to a ... | 12/31/1996 |
| 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 supply of pressurized air. The use of expandable bellows red... | 11/12/1996 |
| 5480292 | 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 supply of pressurized air. The use of expandable bellows red... | 01/02/1996 |
| 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 inflatable tubes which when pressurized resiliently rigidi... | 02/14/1995 |
| 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 the partition wall and connected with the pressure space of ... | 01/24/1995 |
| 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 transmit opposing vector forces to each other. This causes... | 01/17/1995 |
| 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 cooling system functions through a bellows compressor cham... | 12/27/1994 |
| 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 the opposing distal ends of the chamber, each of the bellow... | 09/13/1994 |
| 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 other secured to a piston closure plate with the plate an... | 05/03/1994 |
| 5305739 | 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 inflatable tubes which when pressurized resiliently rigidi... | 04/26/1994 |
| 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 bellows is connected between the treadle and the platform, for... | 04/19/1994 |
| 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 relationship on opposite sides of a central section. The central ... | 07/06/1993 |
| 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 cylinders are provided on opposite sides of the center block an... | 03/23/1993 |
| 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 movement of the movable valve, and in which surfaces contact... | 10/27/1992 |
| 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 that at the same time as one bellows draws in, the other ... | 08/25/1992 |
| 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 a displacer piston is slidable. An expansion space and a c... | 02/18/1992 |
| 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 compressed air. Three or more air compressing members are successiv... | 02/18/1992 |
| 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 pair of bellows type displacement chambers which are altern... | 12/17/1991 |
| 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 diameter. The free ends of the support ring have a telescopic r... | 01/08/1991 |
