Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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 |
| 8182252 | Progressing cavity pump with split stator A progressing cavity pump system including a rotor and a stator having an inner cavity. The rotor is rotationally disposed inside the inner cavity of the stator such that rotation of the rotor relative to the stator causes material in the inner cavity to be pumped t... | 05/22/2012 |
| 7438540 | Two-stage rotary compressor In a two-stage rotary compressor of the present invention, an oil supply hole connecting an oil reservoir on a bottom portion in a closed vessel to a suction port formed in a lower supporting member is provided in the lower supporting member attached to the lower si... | 10/21/2008 |
| 7425121 | Rotary vane pump A pump assembly (100) having a pump housing (206 and 208) and a rotor (222) rotatingly disposed within the housing, the rotor having a plurality of slots (226). The pump assembly includes a plurality of vanes (224), each van... | 09/16/2008 |
| 7416395 | Sleeve for coupling a refrigerant pipe to a compressor container A sleeve connecting a refrigerant pipe to a sealed compressor container has a reduced outer dimension and an inner step that accommodates the refrigerant pipe. An end of the refrigerant pipe abuts the inner step to accurately locate the refrigerant pipe to permit th... | 08/26/2008 |
| 7393192 | Rotary vane pump A rotary vane pump (200) for pumping a fluid. The rotary vane pump includes a pump housing (206 and 208) and a rotor having a plurality of dividing members (232) and a plurality of slots (226) disposed between adjacent dividing mem... | 07/01/2008 |
| 7381039 | Rotary compressor having a stepped cover of a discharge muffler chamber A rotary compressor including upper and lower cylinders constituting first and second rotary compression elements; a lower support member which closes an opening of the lower cylinder and which has a bearing as a bearing portion of a rotation shaft; a discharge muff... | 06/03/2008 |
| 7314357 | Seal member for scroll compressors A scroll compressor having a housing with a motor-compressor unit disposed therein. The motor-compressor unit includes a crankcase, stator, rotor, and drive shaft assembly. The motor-compressor unit further includes a fixed scroll member and an orbiting scroll membe... | 01/01/2008 |
| 7310965 | Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger... | 12/25/2007 |
| 7296984 | Gear pump and liquid injection apparatus A gear pump includes a housing defining an accommodating chamber and a cover for sealing the accommodating chamber. The accommodating chamber accommodates a drive gear and a driven gear. Each of the drive gear and the driven gear includes an upper surface opposed to... | 11/20/2007 |
| 7237432 | Vane pump, method for adjusting pump flow rate of vane pump and fuel vapor leakage check module having vane pump A rotor includes a plurality of vanes and is connected to a rotatable shaft of a motor arrangement. A casing includes a pump chamber and elongated holes. The pump chamber receives the rotor in such a manner that the rotor is eccentric to the pump chamber. Each elong... | 07/03/2007 |
| 7234344 | Vane pump and fuel vapor leakage check module having the same A vane pump includes a motor arrangement, a rotor, a casing and bolts. The motor arrangement includes a mount. The rotor includes vanes and is rotated by the motor arrangement. The casing has opposed first and second end surfaces and makes flat surface contact with ... | 06/26/2007 |
| 7214041 | Seal assemblies A seal assembly for the protection of a static seal device for use in a vacuum pump. The seal assembly comprising at least two components which are sealingly connected together, an o-ring seal, which is engaged between the two components to prevent transfer of fluid... | 05/08/2007 |
| 7159412 | Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger... | 01/09/2007 |
| 7107967 | Fuel supply pump having inner lubricating groove A fuel supply pump includes a housing, a camshaft and a cam ring. The camshaft is rotatably supported in the housing. The cam ring is supported around a cam portion of the camshaft such that the cam ring is rotatable with respect to the cam portion. A washer member ... | 09/19/2006 |
| 7074025 | Fluid delivery device A fluid delivery device, such as a geared machine or a gear pump, with a housing having at least one supply chamber and a displacement unit arranged within the supply chamber. The displacement unit serves to supply a medium to at least one pressure chamber provided ... | 07/11/2006 |
| 7073346 | Compressor head, internal discriminator, external discriminator, manifold design for refrigerant recovery apparatus and vacuum sensor The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger... | 07/11/2006 |
| 7040845 | Screw compressor and method of manufacturing rotors thereof A screw compressor comprises a casing, and a male and a female rotor formed with axially twisted screw grooves and accommodated in the casing, the both rotors being rotated by timing gears fixed to the respective rotors while a desired minute gap is kept therebetwee... | 05/09/2006 |
| 7029253 | Pneumatic tool having a pneumatic cylinder for avoiding failure of bearings A pneumatic cylinder of pneumatic tool capable of avoiding failure of bearings, including: a cylinder body having an internal cylindrical chamber in which a rotor is disposed, a rotary shaft being fixedly connected with the rotor, whereby high pressure air can flow ... | 04/18/2006 |
| 6902382 | Gear motor start up control A hydraulic motor comprising a housing having a fluid inlet. A fluid outlet and a cavity there between, a pair of intermeshing gear elements rotatable in the housing about mutually parallel axes. Each of the gear elements having a set of gear teeth disposed about th... | 06/07/2005 |
| 6887058 | Fluid machinery A fluid machinery includes a helical mechanism connected to a driving mechanism, which is driven via a crank shaft. The helical mechanism includes a cylinder defining an inner space, a roller disposed inside the cylinder so as to be rotated in an eccentric manner, t... | 05/03/2005 |
| 6679690 | Scroll compressor including guide frame and compliant frame A scroll compressor including a guide frame (22) for fixing a fixed scroll member (12) and a compliant frame (24) for supporting an oscillating scroll member (14) in the axial direction of the scroll compressor in the guide frame (22), wherein the guide f... | 01/20/2004 |
| 6612822 | Hydraulic motor system An improved hydraulic motor system, suitable for driving an automotive cooling fan or the like. The system is driven by grade gerotor set and an idle gerotor set which are stacked between a center plate and against a rear wall of a cylindrical cavity in a... | 09/02/2003 |
| 6572351 | Pressure seal for a vacuum pump The invention concerns a vacuum pump consisting in the assembly of two stator half-shells (101, 102) and two directly mounted end parts (31, 32) with an interposed single-piece continuous pressure seal (33). The pressure seal (33) comprises two annular en... | 06/03/2003 |
| 6568928 | Scroll-type compressor A scroll-type compressor has a fixed scroll member, a movable scroll member, a front housing, a rear housing and a gasket seal. The fixed scroll member and the movable scroll member cooperate to form a compression region. The movable scroll member orbits ... | 05/27/2003 |
| 6565328 | Self aligning cartridge pump A self-aligning cartridge pump 10 is provided including a pumping mechanism 24, a curved upper plate 30, and a retaining ring 32. The curved upper plate 30 is in communication with the retaining ring 32 such that the self-aligning cartridge pump 10 can pi... | 05/20/2003 |
| 6413064 | Pump A rotary vane pump for delivering a fluid, having a delivery device accommodated in a casing (2), a casing cover (3) arranged on one end face, and optionally with a bearing flange (4) adjoining the casing (2) on the side opposite to the casing cover (3). ... | 07/02/2002 |
| 6394775 | Hydraulic motor seal A seal for a hydraulic pressure device, which seal is located at the joint where one part circumferentially surrounds another part with both of the parts contacting a single adjoining surface, seal being in sealing contact with both parts and the adjoinin... | 05/28/2002 |
| 6257854 | Double screw rotor assembly having means to automatically adjust the clearance by pressure difference A double screw rotor assembly includes two screw rotors meshed in a bushing inside a casing. The threads of the screw rotors have a uniform pitch, and define with the bushing a plurality of air chambers in the pitch. The volumes of the air chambers reduce... | 07/10/2001 |
| 6203298 | Entrapped separator plate for scroll compressor A scroll compressor assembly incorporates a separator plate which has a clearance between its outer periphery and an inner periphery of an end cap. In this way, the location of the separator plate along the center axis of the scroll can be adjusted. Furth... | 03/20/2001 |
| 6193485 | Seal structure for casing An upper casing is outer-fitted to a lower casing. A concave portion for receiving a peripheral portion of a housing is provided at an inner wall of the upper casing. A convex portion for suppressing deformation of the housing caused by deformation when t... | 02/27/2001 |
| 6171087 | Compressor and its assembling method A compressor which can be easily assembled and can prevent damage of seal members is presented. Its assembling method includes of (a) a step of feeding a front casing having a first inner circumference, a second inner circumference, an opening, a bottom, ... | 01/09/2001 |
| 6155808 | Hydraulic motor plates A gerotor hydraulic pressure device using a powder metal wear plate to close off at least one end of a stator/rotor mechanism, with the wear plate having an axial length 0.003" greater than the cavity in the housing that contains it.... | 12/05/2000 |
| 6152715 | Pressure clamped hydraulic pump A pump assembly comprises a hydraulic fluid pump having a housing assembled from a plurality of housing components that are pinned together rather than being clamped together by bolts. The pump is disposed in a cavity in a valve block so that the outlet f... | 11/28/2000 |
| 6079966 | Compressor housing A variable capacity, vane-type compressor has a cylinder block with an oval rotor chamber. A plurality of vanes mounted in slots on a rotor rotate inside the rotor chamber on a shaft that is concentric with the minor diameter of the rotor chamber. Valves ... | 06/27/2000 |
| 5997268 | Positive displacement hydraulic machine having a recess receiving a spigot for sealing A pressure fluid apparatus includes first and second parts which are adapted to be secured together. A first sealing surface of the first part forms a seal with a corresponding second sealing surface of the second part. The first sealing surface includes ... | 12/07/1999 |
| 5876192 | Differential expansion control assembly for a pump A differential expansion control assembly is provided for a pump. The pump has a pump body with a base portion and cover portion of a first material with a first thermal expansion coefficient and a pumping mechanism of a second material with a second ther... | 03/02/1999 |
| 5791888 | Static seal for rotary vane cartridge pump assembly A rotary vane pump includes a cartridge with a sleeve enclosing a set of rotary vanes on a shaft and end members supporting the shaft. A low pressure inlet to the vanes is formed in one side of each end member and a high pressure outlet from the vanes is ... | 08/11/1998 |
| 5660536 | High capacity simplified sea water pump A sea water pump (130) for a marine propulsion system includes a housing (130) having a generally cylindrical pumping chamber (134) defined by a generally cylindrical sidewall (136) extending axially between opposite end walls (138 and 140). A multi-vaned... | 08/26/1997 |
| 5660538 | Suction mechanism of a fluid displacement apparatus A fluid displacement apparatus includes a housing having a fluid inlet and fluid outlet. A suction chamber is formed between the first end of the displacement mechanism and the housing and communicates with the fluid inlet port. A discharge chamber is for... | 08/26/1997 |
| 5624248 | Gerotor motor and improved balancing plate seal therefor A fluid pressure operated device including a gerotor (17) including an orbiting and rotating star (27). A balancing plate (19) is biased into engagement by means of pressurized fluid in a space (102), with an adjacent end surface (28) of the star (27). Ad... | 04/29/1997 |
