Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 5079488 | Electronically commutated motor driven apparatus An apparatus for pumping fluid such as an integral pump/motor is provided. A housing having an inlet and an outlet has a rotatable assembly including an impeller located within and adapted to rotate within the housing to move fluid through the housing fro... | 01/07/1992 |
| 5078741 | Magnetically suspended and rotated rotor The impellor of a blood pump is supported by permanent magnets on the impellor and pump housing and stabilized by an electromagnet on the housing. A control circuit supplies current to the electromagnet to maintain the axial position of the impellor at a ... | 01/07/1992 |
| 5062778 | Helical blade type compressor with thrust loss compensation A piston is eccentrically arranged in a cylinder along its axial direction and can be rotated relative to the cylinder. Part of the piston is in contact with the cylinder's inner surface. First and second helical grooves are formed in the piston's outer s... | 11/05/1991 |
| 5055005 | Fluid pump with levitated impeller A fluid pump with rotary impeller is disclosed which comprises an electromagnetically driven rotary impeller levitated by localized opposed fluid forces. Levitation by localized opposed fluid forces of an impeller driven by electromagnetic forces eliminat... | 10/08/1991 |
| 5026264 | Fluid compressor A fluid compressor includes a cylinder and a columnar rotary rod. The rod is arranged in the cylinder so as to extend in the axial direction thereof and be eccentric thereto, and orbitable relative to the cylinder without rotation with respect to the cyli... | 06/25/1991 |
| 5017087 | Multi-functional rotary hydraulic machine systems Multi-functional rotary hydraulic machines and machine systems combining a common rotary drive system with a family of mechanically interchangeable rotary hydraulic machine units having different hydraulic functions. The machines have a static outer casing mou... | 05/21/1991 |
| 4962734 | Electrically driven, circumferentially supported fan A circumferentially supported fan assembly for drawing cooling air through a radiator of a vehicle is described. The fan includes a fan ring extending circumferentially around the periphery of the fan, the blades of the fan extending from a central region... | 10/16/1990 |
| 4957504 | Implantable blood pump An implantable blood pump (10) for providing either continuous or pulsatile blood flow to the heart. The pump includes a stator (16) having a cylindrical opening (14), an annular array (36 or 38) of electromagnets (40, 42) carried by the stator concentric... | 09/18/1990 |
| 4953811 | Self-driving helicopter tail rotor In order to compensate for the torque component generated by the main rotor f a helicopter, the helicopter engine turns a tail rotor while it is turning the main rotor. Tail rotors, while essential components, take power from the engine, introduce a drag f... | 09/04/1990 |
| 4952122 | Fluid compressor A fluid compressor includes a cylindrical casing, a cylinder arranged in the casing to be rotatable and coaxial with the casing, and a columnar rotary body located in the cylinder and extending in the axial direction of the cylinder. A spiral groove is fo... | 08/28/1990 |
| 4949022 | Solid state DC fan motor A direct current electrical fan motor for use in small electrical equipment such as down sized personal computers and the like incorporates a fan housing forming a circular fan opening and having a bearing support located centrally of the fan housing. A p... | 08/14/1990 |
| 4948347 | Fluid compressor A fluid compressor includes cylinder, and a cylindrical rotating body located in the cylinder. One end of the cylinder is rotatably supported by a first bearing fixed to a case and the other end of the cylinder is slidably fitted with a second bearing. Th... | 08/14/1990 |
| 4944748 | Magnetically suspended and rotated rotor The impellor of a blood pump is supported by permanent magnets on the impellor and pump housing and stabilized by an electromagnet on the housing. A control circuit supplies current to the electromagnet to maintain the axial position of the impellor at a ... | 07/31/1990 |
| 4925367 | Engine block water pump assembly The rotating parts of a vehicle engine water pump are assembled directly upon the engine block so that the block forms the pump housing. The pump parts include a drive wheel, such as a pulley or sprocket wheel, mounted upon one end of a drive shaft, with ... | 05/15/1990 |
| 4908012 | Chronic ventricular assist system An implantable ventricular assist system uses a small high-speed axial flow blood pump which may be grafted into the patient's circulatory system. The pump includes a blood tube in which the pump rotor and stator are coaxially contained, and a motor stato... | 03/13/1990 |
| 4884957 | Displacement machine having displacement body and sealing members rotating on non-parallel axes The displacement machine includes a casing (1) closed by an end plate (2) and accommodating a rotor with displacement surfaces with which a seal is engaged in form-locking manner to co-rotate therewith. The displacement surfaces sealingly engage a hollow ... | 12/05/1989 |
| 4875842 | Axial flow fluid compressor A compressor includes a cylinder, and a rotating body located in the cylinder. A spiral groove is formed on the outer periphery of the rotating body. A spiral blade is fitted in the groove and divides the space between the inner periphery of the cylinder ... | 10/24/1989 |
| 4876492 | Electronically commutated motor driven apparatus including an impeller in a housing driven by a stator on the housing An apparatus for pumping fluid such as an integral pump/motor is provided. A housing having an inlet and an outlet has a rotatable assembly including an impeller located within and adapted to rotate within the housing to move fluid through the housing fro... | 10/24/1989 |
| 4872820 | Axial flow fluid compressor with angled blade A compressor includes a cylinder, and a rotary rod arranged in the cylinder. A spiral groove is formed on the outer periphery of the rotary rod. The spiral groove is formed such that its depth direction extending from the bottom of the groove to the openi... | 10/10/1989 |
| 4871304 | Axial flow fluid compresser A compressor includes a cylinder, and a rotating body located in the cylinder. A spiral groove is formed on the outer periphery of the rotating body. A spiral blade is fitted in the groove and divides the space between the inner periphery of the cylinder ... | 10/03/1989 |
| 4863357 | Rotary positive displacement machine for a compressible working fluid Rotary positive displacement machine for a compressible working fluid comprising two tapered, internally intermeshing members (26, 28) with eccentric axes (48, 50). The members (26, 28) have spiral grooves (34, 38) and intervening lands (36, 40) which coo... | 09/05/1989 |
| 4830584 | Pump or compressor unit A pump or compressor unit (1) suited particularly for mixed phase fluids, e.g. mixed gas and oil, has a multistage axial flow compressor device with contra-rotating vanes. An upstream mixer device (10) and a downstream centrifugal impeller device (32) can... | 05/16/1989 |
| 4831297 | Submersible electric propulsion motor with propeller integrated concentrically with motor rotor A submersible electric propulsion motor includes a sealed cylindrical stator housing defining a central flow passage and a cylindrical rotor core disposed within the stator housing passage such that the stator housing encompasses the rotor core. The rotor... | 05/16/1989 |
| 4802827 | Compressor A compressor includes a closed casing having a suction chamber and a discharge chamber. A rotating member is arranged in the casing and has a spiral bore extending along the axis of rotation of the rotating member. The bore has first and second end openin... | 02/07/1989 |
| 4779614 | Magnetically suspended rotor axial flow blood pump An implantable axial flow blood pump maximizes the blood flow while minimizing the dimensions of the pump. By magnetically suspending a rotor of relatively small diameter coaxially in a cylindrical blood conduit of substantially larger inner diameter, an ... | 10/25/1988 |
| 4729717 | Power transmission An electric motor driven inline hydraulic apparatus comprises a common housing, a stationary shaft mounted in said housing and spaced pump cylinder block subassemblies that rotate around and are mounted on said shaft. Each subassembly includes a cylinder ... | 03/08/1988 |
| 4688998 | Magnetically suspended and rotated impellor pump apparatus and method A novel pump apparatus and method, the pump including a magnetically suspended and rotated impellor inside the pump housing. A novel sensor system detects the position of the impellor and thus provides the necessary information for operation of a suspensi... | 08/25/1987 |
| 4459087 | Fan unit for an internal combustion engine of automobile vehicle A fan unit for cooling an internal combustion engine comprising a fan impeller associated with a coaxial channel for guiding the air travelling through said impeller and an electric driving motor of DC type. The channel is fixed to the ends of the blades ... | 07/10/1984 |
| 4408966 | Pump for supplying liquid fuel A pump for forcedly feeding kerosene or like fluid comprises a rotor, a housing rotatably accommodating the rotor, a stator for forming a rotary magnetic field to rotate the rotor, and a fluid feeding portion. When the rotor is a disk, spiral grooves prov... | 10/11/1983 |
| 4407641 | Electrically-driven rotary vane pump The pump comprises a pump stator (5), an electric motor stator (4), and a rotor (6) that constitutes the rotor both of the pump and of the electric motor. The pump stator comprises a tubular non-magnetic lining to the electric motor stator, and the rotor ... | 10/04/1983 |
| 4384828 | Sliding vane compressor A sliding vane compressor for use in refrigeration systems includes a rotatable hollow shaft, a cylindrical compressor rotor which surrounds the shaft, end covers enclosing the compressor rotor and a pair of vanes disposed within the rotor to compress a w... | 05/24/1983 |
| 4123666 | Rim-type hydroelectric machine The disclosure concerns a hydroelectric machine including a tube-type hydraulic machine having a bladed wheel which rotates about a horizontal axis and is provided with fixed blades which are encircled by, and connected with, a rim to which the rotor of a... | 10/31/1978 |
| 3972653 | In-line pump device An in-line pump device having a hollow, power shaft formed with an internal rotary chamber having an impeller vane assembly mounted therein to pump a fluid therethrough, the power being supplied by a motor positioned substantially about the power shaft.... | 08/03/1976 |
| 3964885 | Centrifugal pumps A centrifugal pump has a rotor with two aligned frusto-conical passages, between the larger ends of which is a centrifugal impeller. The lower, smaller end of one of the passages forms a pump inlet. Frusto-conical funnels within the passages act to separa... | 06/22/1976 |
| 3938913 | Flow machine for an aggressive, radioactive or special-purity flow medium A flow machine for pumping and/or measuring the flow of agressive, radioactive, or special-purity flow mediums. The flow machine is provided with a rotatable impeller magnetically supported within a machine casing such that the impeller is spaced at all p... | 02/17/1976 |
