Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7256511 | Turbine-generator equipment and installation method thereof Installation method of turbine-generator equipment controlling a turbine-generator is described. The method includes manufacturing a thyristor excitation equipment as a package including a circuit breaker, an excitation transformer, a power rectifier coupled with th... | 08/14/2007 |
| 7160622 | Oil repelling agent An oil repelling agent to coat a dynamic pressure device, such as a fluid dynamic pressure bearing device, includes a UV coloring agent, a fluorine-based polymer and a solvent. In an exemplary embodiment of the invention, the concentration of the UV coloring agent c... | 01/09/2007 |
| 7144932 | Low-friction, high-dispersion synthetic resin composition containing fine particles of RB ceramic or CRB ceramic and a method for its preparation A synthetic resin composition includes at least one synthetic resin and RBC or CRBC particles dispersed in the resin. A method for preparing a synthetic resin composition includes mixing RBC or CRBC particles with a synthetic resin at a temperature near the melting ... | 12/05/2006 |
| 7074016 | Planar turbopump assembly A turbopump including a rotor having a first face and a second face and being characterized by a rotor axial height between the first and second rotor faces and by a rotor diameter. A rotor housing includes bearing surfaces for supporting rotation of the rotor, incl... | 07/11/2006 |
| 6945050 | Rotary fluid machinery A rotary fluid machine is provided that includes a rotor chamber (14), a rotor (41), vanes (48) guided by vane channels formed in the rotor (41), and pistons (47) slidably fitted in cylinders (44) provided in the rotor (4... | 09/20/2005 |
| 6935129 | Heat exchanger and combined cycle system using the same A radiator for a vapor-compression refrigerant cycle and a condenser for a Rankine cycle are integrated to construct a heat exchanger. The heat exchanger includes a core portion for performing a heat exchange, and is disposed to have a first function portion used as... | 08/30/2005 |
| 6592336 | Hydraulic pump with a built-in electric motor A hydraulic pump with a built-in electric motor wherein an electric motor and a pump unit are arranged in tandem fashion and accommodated within a common housing. In this pump, the housing is in the form of a metal box having a rectangular parallelepiped ... | 07/15/2003 |
| 6109887 | Electric pump An electric pump of the present invention includes a stator assembly having an annular transverse section, and a rotor assembly rotatably supported in a center hole of the stator assembly and selectively rotating in a desired direction in cooperation with... | 08/29/2000 |
| 5738305 | Inflation system An inflation system for use in inflating an inflatable foldable escape slide or foldable container for use in evacuating personnel from an aircraft, platform or other device in cases of emergencies. The slide has a gas source such as a bottle member havin... | 04/14/1998 |
| 5558509 | Sliding-blade water jet propulsion apparatus for watercraft A sliding-blade water jet propulsion apparatus has an oval-shaped chamber and a water channel extending generally tangential to the chamber with a cylindrical rotor rotatably mounted eccentrically in the chamber. The rotor has at least two rectangular bla... | 09/24/1996 |
| 5336059 | Rotary heat driven compressor A rotary heat driven device comprising a rotor having sections thereof mounted on a common shaft one within and off center of each of the associated axially aligned chambers. One section comprises an engine, the other a compressor and the third a liquid p... | 08/09/1994 |
| 5307848 | Non-aerating tank filling nozzle with automatic shutoff A non-aerating fluid dispensing nozzle for dispensing fluid into a receiving tank has a vapor control and containment mechanism for vapors formed in the receiving tank. The mechanism has a chamber disposed within the housing of the nozzle and a gas passag... | 05/03/1994 |
| 4859157 | Device for injecting fertilizer or other chemicals into a pipeline A device for injection of liquid fertilizer into an irrigation pipe includes an axisymmetrical housing (I) adapted for insertion into the pipe line (III). The device comprises an axial turbine impeller (II) rotatably positioned in the housing, the impelle... | 08/22/1989 |
| 4731545 | Portable self-contained power conversion unit A portable, self-contained power conversion unit is disclosed that is attached to an outlet for a pressurized fluid system, such as the nozzle for a garden hose. An impeller mounted in the body of the unit and is rotated by the discharge of pressurized fl... | 03/15/1988 |
| 4639202 | Gerotor device with dual valving plates Apparatus responsive to fluid pressures and capable of providing fluid under pressure to provide a unit which may selectively be used as a fluid motor or a fluid driven motor pump unit depending upon fluid directing and control structures and with minimal... | 01/27/1987 |
| 4488055 | Fluid pipe generator A fluid motor consisting essentially of a housing mounted on a water pipe and containing a vaned disc which functions as a paddle wheel whereby fluid moving through the conduit engages the vanes driving the disc and an output shaft associated therewith wh... | 12/11/1984 |
| 4184808 | Fluid driven pump A pump has three gears disposed in three cavities of a housing, with the first and second gears being connected and the second and third gears being connected. A pressurized fluid source is connected to the housing for rotating the gears, whereupon fluid ... | 01/22/1980 |
| 4068687 | Vapor recovery liquid dispensing apparatus A liquid dispensing nozzle is provided with a liquid discharge tube and a vapor recovery tube, both of which are adapted to be inserted into the fill pipe of a tank such as a motor vehicle gasoline tank. While gasoline or other volatile liquid is discharg... | 01/17/1978 |
| 4008983 | Tip turbine inflating device with motor-actuated closure at inlet A tip turbine type fan particularly adapted for use to effect a substantially instantaneous inflation of an emergency lifesaving device such as an escape slide or life raft. It features a housing having an improved unitized construction which defines an a... | 02/22/1977 |
| 3930753 | Dual prerotator The invention relates to a method and apparatus for improving the performance of back-to-back turbocompressor or turbopump systems, or, more generally, of internal-separation energy separators. A helicoidal or spiral baffle is used to impart simultaneousl... | 01/06/1976 |
