Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7780425 | Piston compressor A piston compressor contains at least one cylinder (2), inside of which a reciprocating piston (4) forms two working chambers (10, 12) disposed on opposing sides of the piston, which each have at least one inlet and one outlet opening, in which ... | 08/24/2010 |
| 7396218 | Micro irrigation pump An irrigation device (FIG. 1) for pumping fluids, particularly water, which can be constructed for a minimal cost and operated using only human power and having a simple and efficient mechanism making it suitable for use in undeveloped areas. The device inclu... | 07/08/2008 |
| 7390175 | Double action simplex plunger pump A double-acting, simplex, fluid handling pump is designed to facilitate an optional configuration as either a plunger pump or a diaphragm pump. An injection molded plastic pump body comprises two bilaterally symmetrical halves that include internal pockets and groov... | 06/24/2008 |
| 7364000 | Suspension apparatus of vehicle The invention provides a suspension apparatus of a vehicle comprising a base end portion of a swing arm pivotally attached to a vehicle body so as to freely oscillate, and a wheel which is rotatably supported to a leading end portion of the swing arm. A first link i... | 04/29/2008 |
| 7362032 | Electroactive polymer devices for moving fluid The invention describes devices for performing thermodynamic work on a fluid, such as pumps, compressors and fans. The thermodynamic work may be used to provide a driving force for moving the fluid. Work performed on the fluid may be transmitted to other devices, su... | 04/22/2008 |
| 7329105 | Multi-directional pump A multi-directional pump is disclosed generally comprising a housing with inlet and outlet ports, a pumping device disposed therein, a first chamber in fluid communication with the inlet port, and a second chamber in fluid communication with the first chamber. The f... | 02/12/2008 |
| 7285164 | Fluid loss additives for cement slurries Methods for cementing in a subterranean zone, which use a cement composition that includes zeolite, cementitious material, proportioned fluid loss control additives and a mixing fluid. Cement compositions containing proportioned fluid loss control additives, and met... | 10/23/2007 |
| 7223080 | Double-acting, high pressure cryogenic pump A double-acting, reciprocating piston, high discharge pressure, cryogenic fluid pump having a unique blow-by venting system. In two different embodiments, a double-acting piston has two pair of piston heads and two sets of seals. In a first embodiment, a blow-by ven... | 05/29/2007 |
| 7198474 | Pump having shape memory actuator and fuel cell system including the same A pump having a linearly movable shaft, a rotatable hub operably connected to the shaft, and shape memory actuator operably connected to the rotatable hub, and a fuel cell system including the same. ... | 04/03/2007 |
| 7175395 | Pressure enhancer value system A system to intensify pressure supplied by a conventional pump where a piston assembly having two piston members at opposite ends is positioned in a pressure cylinder. The laterally outer subchambers are defined by the piston members and the cylinder and are adapted... | 02/13/2007 |
| 7131820 | Method for controlling a thick matter pump A method for controlling a thick matter pump comprising two delivery cylinders (10) emerging, via two openings (12), into a material reservoir (14), associated with two delivery pistons (26), symmetrically synchronized relative to said cy... | 11/07/2006 |
| 7074022 | Discharge valve assembly for reciprocating compressors A reciprocating compressor including cylinder block with a plurality of cylinder bores. A piston is positioned in each bore and mounted to move in response to the a crankshaft, causing each piston to reciprocate within the cylinder bore. The compressor further inclu... | 07/11/2006 |
| 7056105 | Unit utilizing current to control reciprocation for pushing fluids A unit utilizing current to control reciprocation for pushing fluids, including a chamber, a magnet, a coil connected with a circuit, a first inlet, a first outlet, a second inlet, a second outlet, a first valve and a second valve. The magnet is slidably disposed in... | 06/06/2006 |
| 6997897 | Diaphragm pump and pump for double-breast pumping A motorized pump is disclosed that includes a flexible diaphragm fitting within a rigid member, a motor drive mechanism for drawing a puller member attached to the diaphragm away from the rigid member to create a space between the diaphragm and the rigid member and ... | 02/14/2006 |
| 6957646 | Pump An air gun includes an air pump with a pumping piston mounted to reciprocate within a pump cylinder, which is mounted on the barrel of the gun to pivot about an axis transverse to the longitudinal axis of the barrel so that as the pump cylinder is moved back and for... | 10/25/2005 |
| 6884040 | Multi pumping chamber magnetostrictive pump A positive displacement pump includes a magnetostrictive actuator. A single actuator drives multiple pumping chambers. The pump may include two pumping chambers driven in phase by the linear expansion of the actuator at both its ends. The pump may include a third pu... | 04/26/2005 |
| 6817846 | Gas compressor and method with improved valve assemblies A gas compressor and method according to which a piston assembly reciprocates in a bore to draw the fluid to be compressed into the bore during movement of the piston unit in one direction and to compress the fluid during movement of the piston unit in the other dir... | 11/16/2004 |
| 6749408 | Piston pump A piston pump assembly having a single drive gear assembly associated with two adjacent pump cylinders. Each pump cylinder has a separate valve unit associated therewith. The two pump cylinders have a common piston rod having a pump piston arranged at each end. The ... | 06/15/2004 |
| 6746212 | High efficiency pump for liquid-cooling of electronics An apparatus includes a housing and a piston slidingly located within the housing, wherein the piston is made of a permanent magnetic material and the piston is to move by magnetic force wherein fluid is to be pumped by the piston. ... | 06/08/2004 |
| 6722866 | Pump system for delivering cryogenic liquids A pump system for delivering cryogenic liquids is proposed that is suitable, for example, for refueling motor vehicles with H2. It consists of a container for receiving the cryogenic liquid, in which at least one pump is arranged that is designed as a rec... | 04/20/2004 |
| 6663361 | Subsea chemical injection pump A chemical injection pump for injecting chemicals into subsea system at depths up to 10,000 feet is described which uses a minimum of moving parts by employing an actuator, for instance a solenoid, to power a double acting actuator rod and plungers thereo... | 12/16/2003 |
| 6655935 | Gas compressor comprising a double acting piston, an elongate chamber, multiple inlets mounted within heads on both sides of the chamber, and one central outlet A gas compressor and method according to which a plurality of inlet valve assemblies are angularly spaced around a bore. A piston reciprocates in the bore to draw the fluid from the valve assemblies during movement of the piston unit in one direction and ... | 12/02/2003 |
| 6652741 | Piston pump, method and installation for filtering water The present invention provides a method and an installation for filtering a liquid using a membrane filter device. The technical sector of the invention is the field of manufacturing filter devices, in particular semipermeable membrane devices. In the inv... | 11/25/2003 |
| 6644940 | Restarting device for a fluid operated double diaphragm piston pump A restarting device of a pump including a center rod defining fluid delivering chambers and driving chambers 11b and 12b. The restarting device of the pump further includes: a change-over valve 2 for switching a direction for the center rod to move, and a... | 11/11/2003 |
| 6561774 | Dual diaphragm pump A dual diaphragm pump comprises a first chamber, a second chamber, a mechanical link, and a drive mechanism. The first chamber comprises a first cavity and a first diaphragm. The first chamber couples a pump inlet to a pump outlet. The second chamber comp... | 05/13/2003 |
| 6544005 | Diaphragm for a diaphragm pump A diaphragm for a diaphragm pump is in the form of a vehicle tire. The vehicular tire has a first mounting face, a second mounting face and a circumferential tread portion positioned between first mounting face and the second mounting face. A first sealin... | 04/08/2003 |
| 6533560 | Electromagnetic oscillating type pump and method for manufacturing the same An electromagnetic oscillating type pump for oscillating diaphragms (5) connected to an oscillator (4) caused to oscillate by utilizing magnetic interaction between an electromagnetic portion (2) and a magnetic body (3), and having a frame portion (19 51 ... | 03/18/2003 |
| 6527524 | Double acting simplex plunger pump with bi-directional valves A bi-directional fluid valve apparatus comprising a valve member adapted to co-act with an annular shoulder at the end of a fluid bore, the valve member having two axial ends. A flat surface on a first end having a diameter greater than that of the should... | 03/04/2003 |
| 6511306 | Zero leakage valveless positive fluid displacement device A Positive Fluid Displacement Device (PFDD) with single piece double-ended pistons connected to a crankpin for circular motion. Pistons are nested together to maintain all pistons in the same plane perpendicular to the axis of the crankshaft. Cylinders ar... | 01/28/2003 |
| 6345963 | Pump with positive displacement A pump with positive displacement for pumping and entrainment of a fluid in piping (3), includes a cylinder (6) which contains deformable pumping bellows (12) which separate two pumping chambers, a driver (34, 29) which is associated with the pumping unit... | 02/12/2002 |
| 6305918 | Piston rod seal assembly for walking beam compressor A walking beam compressor has a rod collar assembly attached to the top cap of the compressor cylinder with bearings which reduce side loading on the seals and bearing surfaces in the top cap. A top cap assembly supports a pair of vertically stacked seals... | 10/23/2001 |
| 6299413 | Pump having a bleeding valve A pump comprises a housing having a fluid inlet and a fluid outlet. A piston is mounted for reciprocating motion in first and second directions within the housing. The housing has first and second cavities on first and second sides of the piston, respecti... | 10/09/2001 |
| 6283723 | Integrated compressor expander apparatus Fluid displacement apparatus with a set of opposing pistons in traveling chambers and a set of opposing pistons in stationary bores; a second embodiment with all pistons in traveling chambers; a third embodiment with all pistons in stationary bores. In ea... | 09/04/2001 |
| 6234774 | Coaxial valve-type alternating pump especially for boats such as a rubber dinghy, manually operated or motor-driven Pump (10) especially for a rubber dinghy and the like has a cylinder (11) with a double-acting alternating piston (13) and a small oblong cylinder (15) alongside the first, closed by heads (24) with packings (26), the valves (31) of the cylinder (11) comm... | 05/22/2001 |
| 6231322 | Method and device for the production of beverages The invention concerns a method and a device producing beverages in a beverage making machine, wherein inside a pressure vessel (2) water is stored, carbonated and possibly chilled under pressure and wherein water intended to be fed into the pressure vess... | 05/15/2001 |
| 6231310 | Linear compressor A linear compressor according to the invention is for generating compressed gas and includes two pairs of pistons 608a, 608b and cylinders 607a and 607b coaxially provided and facing opposite to each other, a shaft 603 having pistons 608a and 608b at its ... | 05/15/2001 |
| 6164935 | Walking beam compressor A walking beam compressor has a rod collar assembly attached to the top cap of the compressor cylinder with bearings which reduce side loading on the seals and bearing surfaces in the top cap. A top cap assembly supports a pair of vertically stacked seals... | 12/26/2000 |
| 6152709 | Hydraulic drive cylinder A hydraulic drive cylinder with a cylinder tube, which at its respective ends has a cylinder base and a cylinder head, thus delimiting a cylinder space. A piston can move to and fro in the cylinder space between the cylinder base and the cylinder head, wh... | 11/28/2000 |
| 6139288 | High pressure pump The present invention provides a high pressure pump (1), which comprises an electric motor (2) having a through-hole in axial direction on a rotation shaft (5), a thrust transmission shaft (8) engaged with threads of a rotation nut (6) operated by rotatio... | 10/31/2000 |
| 6120265 | Two-stroke operable pump A pump includes a main body, an inner tube mounted in the main body, and a hollow piston slidably mounted in the main body and partially receiving the inner tube. A piston is mounted in the main body and slidable along the inner tube. Two O-rings are moun... | 09/19/2000 |
