Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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 |
| 8162621 | Hydraulic machine arrangement A hydraulic machine has a plurality of pistons reciprocating within corresponding cylinders. Embodiments may operate as a pump, a motor, or both. The hydraulic machine can be configured to selectively disengage certain pistons from the cam to operate at less than fu... | 04/24/2012 |
| 8142170 | Radial piston pump A radial piston pump having external loading. The radial piston pump has an inner eccentric which is attached to a rotatable driveshaft, a cylinder block which has positionally fixed cylinder bores aligned radially with respect to the driveshaft, and displacement pi... | 03/27/2012 |
| 8128380 | Axial piston pump or motor of the swashplate or bent axis type An axial piston machine, in particular an axial piston pump, of the swashplate or bent axis type, is described, wherein a fixed control plate (12), which comprises at least one control passage (12a) consisting of a plurality of control passage s... | 03/06/2012 |
| 8052401 | Double-acting radial piston hydraulic apparatus A hydraulic apparatus comprises a housing having a central axis; a plurality of radially-oriented piston-cylinder assemblies each including a cylinder supported by the housing and a piston movable within the cylinder, the piston separating radially inner and outer c... | 11/08/2011 |
| 8007251 | Radial piston fuel supply pump A high pressure radial piston fuel pump is featured having an hydraulic head with two or three individual radial pumping pistons and associated pumping chambers, annularly spaced around a cavity in the head where a rotating eccentric drive member with associated act... | 08/30/2011 |
| 7980829 | Radial type reciprocating compressor and portable tool powering system with flexing connecting rod arrangement A reciprocating compressor or pump features a manifold arranged not only to define a hollow interior for receiving fluid discharged from a plurality of cylinders but also to define a base or frame on which the cylinders are carried. Unique valves formed in part by f... | 07/19/2011 |
| 7959415 | Radial type reciprocating compressor and portable tool powering system with cylinder liner, valve and annular manifold arrangement A reciprocating compressor or pump features a manifold arranged not only to define a hollow interior for receiving fluid discharged from a plurality of cylinders but also to define a base or frame on which the cylinders are carried. Unique valves formed in part by f... | 06/14/2011 |
| 7950905 | Radial piston fuel supply pump A high pressure radial piston fuel pump is featured having an hydraulic head with two individual radial pumping pistons and associated pumping chambers, annularly spaced around a cavity in the head where a rotating eccentric drive member with associated actuation ri... | 05/31/2011 |
| 7874814 | Piston pump with fluid reservoir In an electrically-driven piston pump including a fluid reservoir for retaining fluid that has leaked into a cam chamber, at an edge between a side wall surface of the cam chamber and the fluid reservoir, an upper edge, which is positioned on the upper side, is arra... | 01/25/2011 |
| 7766626 | Multipiston pump A multipiston pump including a plurality of piston pumps hydraulically combined into at least two pump units are coupled on the intake side, but supply two separate hydraulic circuits of a vehicle brake system with pressure fluid. To reduce brake pedal pulsation the... | 08/03/2010 |
| 7744353 | Fluid pump and high-pressure fuel feed pump A fluid pump has a cylinder supporting a plunger and a pump housing formed with dissimilar metals. A pressing mechanism presses the cylinder and the pump housing relative to each other so that a pressurizing chamber is sealed through a pressing surface between the p... | 06/29/2010 |
| 7736132 | Compressors and methods for use A compressor suitable for use in a portable oxygen concentrator. In one exemplary embodiment, the compressor includes a crankshaft rotatable about a central axis and a plurality of diaphragm assemblies spaced apart around the central axis generally within a plane. T... | 06/15/2010 |
| 7600983 | Radial plunger pump and method for manufacturing pump housing A pump housing supporting a driving shaft has a plurality of cylinder bores extending radially and arranged at substantially regular intervals around an outer periphery of the driving shaft. Each cylinder bore has a plunger fitted therein, which reciprocates in resp... | 10/13/2009 |
| 7563078 | Reciprocating compressor A reciprocating compressor includes: a low-pressure stage compression part for compressing low-pressure working gas supplied from a supply source; two high-pressure stage compression parts for compressing the working gas compressed by the low-pressure stage compress... | 07/21/2009 |
| 7524171 | Radial piston fuel supply pump An hydraulic head features two, three, or four individual radial pumping pistons and associated pumping chambers, annularly spaced around a cavity in the head where an eccentric drive member with associated outer rolling actuation ring are situated. The piston shoe ... | 04/28/2009 |
| 7481629 | Radial piston pump Proposed is a radial piston pump with a pump body, in which pistons and cylinders are circumferentially arranged about a driven eccentric, which the pump possesses a faceted slip ring (9) assembly which has an inner diameter and a polygonal outer diameter, th... | 01/27/2009 |
| 7422421 | Plunger pump apparatus A reservoir chamber 33, which communicates with a vent passage 34 provided in an electric motor 11, is formed between a motor casing 20 of the electric motor 11 and a body 13 in which a drain port 59A, which communica... | 09/09/2008 |
| 7390174 | Piston pump A piston pump (10) for a hydraulic consumer of an electronically controlled vehicle brake system, carries a stepped piston (50, 50′) and centers a sealing assembly (26, 26′) which is retained in an axial direction Ax by a step (52, 52′ | 06/24/2008 |
| 7384246 | Pump element and piston pump for generating high fuel pressure A pump element and a piston pump for generating high fuel pressure are proposed, in which tilting of the piston base relative to a drive shaft is effectively suppressed, so that the service life of the high-pressure fuel pump is increased. ... | 06/10/2008 |
| 7377754 | Compressor A compressor includes a swash plate, and a shoe connected to an outer periphery of the swash plate. A surface of the swash plate slides upon a flat surface of the shoe. A sliding film is applied to the surface of the swash plate. The sliding film is formed of binder... | 05/27/2008 |
| 7363913 | High-pressure pump for a fuel injection system of an internal combustion engine A high-pressure pump has at least one pump element, with a pump piston which is guided displaceably in a cylinder bore of a housing part of the high-pressure pump and is driven in a reciprocating motion and defines a pump work chamber in the cylinder bore, into whic... | 04/29/2008 |
| 7347186 | High-pressure pump for a fuel, with sump in communication with the fuel The pump (7) is provided with a body (16) having a compartment (17), and with at least one pumping element (13) that moves in a cylinder (12) in communication with the compartment (17), to raise the pressure of the fuel. The... | 03/25/2008 |
| 7341318 | Circulating fluid regulated braking device for air and land vehicles A circulating fluid regulated braking device for a vehicle includes a piston pump mounted directly on the hub of each vehicle wheel. The pumps mounted on front wheels are connected by pipes to a primary two-way valve, which, in turn, is connected by pipes to a prima... | 03/11/2008 |
| 7328688 | Fluid pumping apparatus, system, and method A fluid pumping apparatus, system, and method are disclosed in which an apparatus according to one embodiment of the invention comprises a housing, an inlet through which the fluid enters the housing, an outlet through which the fluid leaves the housing, a valve com... | 02/12/2008 |
| 7322271 | Rotary radial piston machine A rotary displacement machine (10) with radial pistons (19), includes a bearing (29) having a rotating thrust ring (28) and a stationary outer ring (30), with bearing rollers (31) therebetween. The thrust ring (28) in... | 01/29/2008 |
| 7313998 | Motor/pump unit, particularly for anti-skid vehicle brake systems The present invention relates to a motor-pump unit for slip-controlled vehicle brake systems, including an accommodating member for hydraulically active elements comprising at least one working piston, which is arranged and guided in the accommodating member so as t... | 01/01/2008 |
| 7300260 | Special fluids for use in a hydrostatic transmission A positive displacement piston unit is provided that utilizes a magnetorheological (MR) or electrorheological (ER) fluid as the transmission fluid. Each cylinder of the invention has an intake port connected to the suction port of the hydrostatic pump and an output ... | 11/27/2007 |
| 7296980 | Intake valve for a high-pressure pump, in particular for internal combustion engine fuel An intake valve for a high pressure pump for internal combustion engine fuel having a valve body having a seat with which cooperates a shutter kept closed by a first spring of substantially constant pressure and by a second spring varying in pressure during at least... | 11/20/2007 |
| 7284537 | High-pressure pump for a fuel-injection device of an internal combustion engine A high-pressure pump having a rotationally driven drive shaft with a shaft portion embodied eccentrically to its axis of rotation, on which shaft portion a ring is rotatably supported. At least one pump element, has a pump piston, driven at least indirectly in a rec... | 10/23/2007 |
| 7281519 | Set of piston type fuel pumps for internal combustion engines with direct fuel injection A plurality of piston pumps form a set of piston pumps, each including one drive region and at least one pumping region. The a set of piston pumps includes at least two piston pumps of different models, and the pumping regions of all the piston pumps the set are emb... | 10/16/2007 |
| 7278835 | Piston pump A piston pump for brake systems employs a pulsation-smoothing device that functions especially well in the region of the outlet valve. As a result, substantially less noise occurs, and the durability of the piston pump is substantially better. The piston pump is use... | 10/09/2007 |
| 7278348 | High-pressure pump for a fuel injection system of an internal combustion engine A high-pressure pump having a drive shaft and at least one pump element including a pump piston driven in a reciprocating motion by the drive shaft. A ring on which the pump piston is braced via a support element is rotatably supported on a portion of the drive shaf... | 10/09/2007 |
| 7276770 | Fast Si diodes and arrays with high quantum efficiency built on dielectrically isolated wafers Fast silicon diodes and arrays with high quantum efficiency built on dielectrically isolated wafers. A waveguide is formed in the top surface of the silicon that utilizes total internal reflection from the Si—Si Oxide interface to form an internal mirror. This mir... | 10/02/2007 |
| 7273003 | Plunger pump A plunger pump, includes: a plunger pump unit including a pump chamber and a plunger for pressing a hydraulic fluid in the pump chamber to perform a discharging operation of the hydraulic fluid; a motor; and a cam portion driven by the motor to rotate and press the ... | 09/25/2007 |
| 7273036 | High-pressure fuel pump with a ball valve in the low-pressure inlet A high-pressure a radial piston fuel pump in which the intake valves are embodied as ball valves, which has an advantageous effect on the efficiency of the high-pressure fuel pump. Moreover, the production and assembly of the high-pressure fuel pump of the invention... | 09/25/2007 |
| 7240668 | Fuel leak detection apparatus and method Apparatus and method for detecting a fuel leak from a component includes providing a fuel leak enclosure about the component being monitored. ... | 07/10/2007 |
| 7220109 | Pump cylinder seal A compact opposed piston pump minimizes axial spacing between its pistons on the drive shaft and thereby reduces the shaking couple and noise from reciprocation. Each piston has its own eccentric element press-fit into the connecting rods so as not to occupy space b... | 05/22/2007 |
| 7210463 | Pump, especially for a fuel injection device for an internal combustion engine A pump having least one pump element with a pump piston guided in a sealed fashion in a cylinder bore (26) of a housing part delimiting a pump working chamber in the cylinder bore, and driven into a stroke motion. The working chamber is connected to an inlet ... | 05/01/2007 |
| 7204565 | Electrohydraulic assembly for an electronically controlled brake system The invention relates to an electrohydraulic assembly for an electronically controlled brake system with an accommodating member which includes accommodating bores for electrohydraulic valves, accommodating bores for hydraulic supply devices and an accommodating bor... | 04/17/2007 |
| 7178509 | High-pressure pump, in particular for a fuel injection system of an internal combustion engine A high-pressure pump having a pump housing in which a plurality of pump elements are disposed, and by means of which fluid is pumped at high pressure via a high-pressure conduit system to a common high-pressure connection. The pump housing has a housing body and for... | 02/20/2007 |
