Quotables
"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7946832 | Dual chamber mixing pump A dual chamber mixing pump is disclosed with two pump chambers. The chambers are defined in part by a piston having proximal and distal ends and recessed sections disposed at both ends. The pump utilizes one common driving mechanism to axially rotate and laterally r... | 05/24/2011 |
| 7544051 | Cam-driven fluid pump A pressurisation pump is provided comprising a first plunger and a second plunger, each plunger being reciprocable within a respective plunger bore defined by a housing, wherein the first and second plungers together with the bores define, at least in part, a pumpin... | 06/09/2009 |
| 7048516 | High pressure fuel pump with multiple radial plungers A fuel pump for supplying fuel at high fuel pressures includes a stationary body having a plurality of radial cylinders connecting with a central fuel chamber. Inlet and outlet passages communicate with the fuel chamber. Plungers are reciprocated in the cylinders by... | 05/23/2006 |
| 6976831 | Transmissionless variable output pumping unit A transmissionless variable output pumping unit comprising a multiple crankshaft pump driven by a prime mover. The apparatus includes an adjustment mechanism for adjusting a phase angle between first and second crankshafts. Plungers in the pump are disposed in cylin... | 12/20/2005 |
| 6280160 | Distributor-type fuel injection pump A fuel injection pump of the distributor type which has a reciprocatingly driven pump piston that is load-bearing in a rotating distributor shaft which pumps fuel out of a pump work chamber to various fuel injection valves via a distributor opening. To co... | 08/28/2001 |
| 6132187 | Flex-actuated bistable dome pump A liquid/gas pump includes a stainless steel strip of uniform width that is encased within a flexible and liquid/gas impermeable plastic tube whose inner diameter is only somewhat less than the width of the metal strip. The tube is thus deformed to a gene... | 10/17/2000 |
| 5934889 | Pump driven by cam having the cylinder supported by the cam shaft A pump for performing suction and discharge of a liquid, including: a cylinder supported at at least a first support point and a second support point; a piston slidably disposed in the cylinder and forming a pump chamber having a volume changeable by slid... | 08/10/1999 |
| 5769616 | Submerged pump with coaxial opposing pistons, driven by double lobed camshaft The submerged pump according to the present invention comprises one or more modular pumping groups, each consisting of a balanced, coaxial and opposing piston couple 7 on spool wheels 10 and with a spring 12 return.... | 06/23/1998 |
| 5746584 | Inner cam type fuel injection pump having modified plungers In an inner cam type injection pump, the side surface of the protruding portion of each of the plungers facing the compression space is formed in a projecting shape in the area where the plunger changes from the base end side into the front end. Specific ... | 05/05/1998 |
| 5542827 | Multiple nested pistons hand priming pump with spring biasing A multiple piston hand priming pump includes a plurality of nested pistons engaged within a hollow cylindrical housing. One end of the housing has an inlet/outlet fitting leading to a pumping chamber defined within the housing and the other end of the hou... | 08/06/1996 |
| 5443048 | Fuel pumping apparatus A rotary distributor type fuel pumping apparatus has two pairs of plungers housed in respective diametrical bores which intersect each other. One of the plungers is longer than the remaining plungers conveniently by providing an extension at its inner end... | 08/22/1995 |
| 4940035 | Variable flow rate pump for fluid The pump of the invention has application as a fuel pump for delivering fuel over a range of flow rates to an internal combustion engine. The pump may however be employed in many other applications, such as chemical applications, medical applications and ... | 07/10/1990 |
| 4712985 | Diesel engine fuel injection pump capable of injection timing adjustment A plunger assembly within a barrel is transversely split into two segments, with a timing fluid chamber therebetween for controllably varying the distance between the plunger segments in response to pressure applied thereto by a timing fluid introduced un... | 12/15/1987 |
| 4662825 | Hydraulic pump A supply pump for continuously supplying pressurized fuel to an accumulator-type injector system employs an electrically controlled metering valve for regulating the supply of fuel to the pump chamber. The output pressure of the pressurized fuel from the ... | 05/05/1987 |
| 4553903 | Two-stage rotary compressor A two-stage rotary compressor makes use of a piston-vane arrangement where both stages are built end to end and where the same members (piston-vanes) work for both stages, the "axial pistons" of the second stage becoming the dividing "vanes" in the first ... | 11/19/1985 |
| 4473339 | Liquid pump A liquid pump comprises two flexible impulsion members disposed in series between inlet and outlet openings of the pump casing. The members are engageable with sealing means to form an intermediate chamber in the casing between the inlet and outlet. Both ... | 09/25/1984 |
| 4460319 | Two-stage rotary compressor A two-stage rotary compressor makes use of a piston-vane arrangement where both stages are built side-by-side and where the same members (piston-vanes) work for both stages, the "axial pistons" of the second stage becoming the dividing "vanes" in the firs... | 07/17/1984 |
| 4378962 | Liquid fuel injection pumping apparatus A liquid fuel injection pumping apparatus has a rotary distributor member in which is formed at least two bores which intersect and contain plungers. The plungers are moved inwardly by a cam and their ends are shaped to fit together so as to reduce the vo... | 04/05/1983 |
| 4311441 | Positive displacement device A fluid displacement device is described which may be used as a pump, a motor or a device such as a vibrator for concrete. It includes a body having at least three, and preferably four or five wall portions, which are disposed one after the other along th... | 01/19/1982 |
| 4158530 | Pumping apparatus comprising two collapsible chambers A pump having two collapsible pumping chambers connected in series is coupled to a pump drive mechanism which opens and closes each chamber in a sequence that produces pumping action.... | 06/19/1979 |
| 4139336 | Expansible chamber apparatus with pairs of cylindrical rollers An apparatus having an alternately expanding and contracting chamber comprises at least one pair of cylindrical rollers each having an exterior surface in continuous rolling engagement with the surface of the other roller of the pair, the rollers being ro... | 02/13/1979 |
