Moisture drain bush for an engine starter motor
Accordingly, one object of the present invention is to provide a moisture drain bush for an engine starter motor free from the above discussed problems. A further object of the present invention is to... Read More
Inventors: Sugiyama, Takeshi; Miyaji, Wakaki; Hisamoto, Motoi;, Assignee: Mitsubishi Denki Kabushiki Kaisha (Tokyo, JP) |
Unit providing ventilation and an electrical connector intended for an environmentally sealed motor, and an environmentally sealed motor using such a unit
The present invention proposes a ventilation unit which is used as an electrical connector. This unit is intended to be mounted on the cover of a direct current environmentally sealed motor or similar... Read More
Inventors: Gaspar, Arsene; Pigeau, Jean-Michel;, Assignee: Valeo Systemmes d'Essuyage (Montigny-le-Bretonneux, FR) |
Water-cooled AC and DC motor-generator set on a common shaft with series cooling flow path
The present invention provides features which are designed to satisfy the aforementioned needs. The present invention provides a motor-generator set having AC and DC side rotors mounted on a common sh... Read More
Inventors: Newhouse, Brian L.;, Assignee: Westinghouse Electric Corp. (Pittsburgh, PA) |
Wired glass
OF INVENTION FIG. 1 shows a wired glass 1 according to the invention consisting of two spaced apart glazing panels 2 and 3, each 3 mm thick, bonded together by an interlayer 4 of adhesive resin mater... Read More
Inventors: Hickman, James A. A.;, Assignee: Miller Construction Limited (Edinburgh, GB) |
Device for removing low level contaminants from a liquid
It is an object of this invention to provide a means to remove impurities from a liquid wherein the impurities are present in the liquid at very low concentration levels. Another object of this invent... Read More
Inventors: Dougherty, Jr., William E.; Gregor, Lawrence V.; Klein, Donald L.; Redmond, Thomas F.; Reeber, Morton D.;, Assignee: IBM Corporation (Armonk, NY) |
High efficiency electromagnetic coil apparatus and method
In accordance with the present invention a coil is formed which has no bobbin. Instead of using a bobbin, the coil is formed around a mold or mandrel and then is potted with a potting compound, such a... Read More
Inventors: Huang, Yuchi; Burch, Robert V.;, Assignee: Nicolet Instrument Corporation (Madison, WI) |
Blower wheel with axial inlet for ventilation
The present invention relates to an apparatus for providing ventilating air into a housing for an electric machine. The apparatus has a hub with a center portion and a generally circular outer portion... Read More
Inventors: Muszynski, Jerzy;, Assignee: Siemens Electric Limited (Mississauga, CA) |
Heat generating apparatus employing viscous fluid
Therefore, a main object of the present invention is to obviate defects encountered in the conventional viscous fluid type heat generating apparatus as disclosed in the above-mentioned three publicati... Read More
Inventors: Moroi, Takahiro; Ban, Takashi; Yagi, Kiyoshi; Mori, Hidefumi; Hirose, Tatsuya;, Assignee: Kabushiki Kaisha Toyoda Jodoshokki Seisakusho (Aichi-ken, JP) |
Process for producing cooling device for printed circuit card
The present invention aims at obviating the aforementioned disadvantages. It relates to a cooling device for a printed circuit card permitting an excellent heat dissipation. It also relates to a cooli... Read More
Inventors: Berland, Robert; Dumont, Bernard;, Assignee: Thomson-CSF (Paris, FR) |
Method and apparatus for dynamic braking in a motor control system
Reference is now made to FIG. 1 which illustrates the present invention. Those familiar with the aforementioned U.S. Pat. No. 4,230,979 will recognize that the showing in FIG. 1 is essentially identi... Read More
Inventors: Cutler, John H.; Espelage, Paul M.; Walker, Loren H.;, Assignee: General Electric Company (Salem, VA) |
Soft shaft interconnecting device
The object of the present invention is to overcome this deficiency in prior devices and to provide a favorable alternative, based upon simple and reliable component and design solutions. In a broad se... Read More
Inventors: Nygren, Ingemar;, Assignee: Svenska Varv Vindenergi AB (Gothenburg, SE) |
Compressor surge control method
The present invention solves the problems associated with prior art surge controls as well as others by providing a surge control system for a compressor which will anticipate a surge condition in adv... Read More
Inventors: Dziubakowski, Donald J.; Keyes, IV, Marion A.; Shaffer, Jeremiah J.;, Assignee: The Babcock & Wilcox Company (New Orleans, LA) |
Method and apparatus to reduce operating noise of dynamo electric machines, particularly vehicular three-phase alternators
The vehicular, typically automotive-type three-phase alternator shown in FIG. 1 will be described only in general terms since the alternator may be of any well known structure. Two end bells or beari... Read More
Inventors: Frister, Manfred;, Assignee: Robert Bosch GmbH (Stuttgart, DE) |
Friction-compensating mass motion controller
The present invention overcomes these disadvantages of the prior art. In particular, the present invention provides a mass motion controller that applied a torque to the mass that is greater during ac... Read More
Inventors: Burke, Edward F.;, Assignee: Tektronix, Inc. (Beaverton, OR) |
Constant speed drive
I claim: 1. A constant speed drive comprising a variable ratio drive transmission including two spaced rotatable discs having facing frusto-conical surfaces and having a common axis, a rotatable annul... Read More
Inventors: Colley, Rowan H.;, Assignee: Rolls-Royce Limited (London, GB2) |
Camshaft
In view of the foregoing, an object of the present invention is to provide a lightweight, large-sized camshaft suitable for mass production. To accomplish these and other objects of the invention, the... Read More
Inventors: Urano, Shigeru;, Assignee: Nippon Piston Ring Co., Ltd. (Tokyo, JP) |
Organic solvent free developer for photosensitive coatings
OF THE PREFERRED EMBODIMENT In the production of a photographic element, a sheet substrate, preferably aluminum and the alloys thereof especially those aluminum compositions suitable for the manufact... Read More
Inventors: Duyal, Tulay;, Assignee: Hoechst Celanese Corporation (Somerville, NJ) |
Digital switching voltage regulator
The need in the art for a digital switching voltage regulator which provides a regulated voltage having a relatively small, well defined ripple component is addressed by the improved digital switching... Read More
Inventors: McVey, Michael J.;, Assignee: Hughes Aircraft Company (Los Angeles, CA) |
Dual mode AC motor drive system
Referring now to FIG. 1, there is shown what is at present considered to be the preferred embodiment of the subject invention. The system includes a source 12 of variable DC current consisting of an ... Read More
Inventors: Cutler, John H.; Walker, Loren H.;, Assignee: General Electric Company (Salem, VA) |
Control device for power converter
A first object of the present invention is therefore to provide a control device for a power converter which can obtain a high power factor and sinusoidal current minimized higher harmonics in the AC ... Read More
Inventors: Sato, Hirokazu;, Assignee: Kabushiki Kaisha Toshiba (Kawasaki, JP) |
Control apparatus for brush-less motor
It is accordingly an object of the present invention to provide a control apparatus for a brush-less motor, which apparatus can prevent commutation failure of an inverter for driving the motor. To ach... Read More
Inventors: Miyazaki, Masanori; Kuroiwa, Akihiko;, Assignee: Kabushiki Kaisha Toshiba (Kawasaki, JP) |
Power saving electromagnetic deflection display system for dual mode deflection amplifier
The invention comprises an electromagnetic deflection display system of the type including means for providing deflection signals, deflection amplifier means, deflection display means, and power suppl... Read More
Inventors: Ruby, Joseph H.;, Assignee: Honeywell Inc. (Minneapolis, MN) |
Short-circuit protector for a half-controlled three-phase bridge
We claim: 1. Short-circuit protector for a three-phase bridge, comprising a half-controlled three-phase bridge having bridge thyristors in a cathode group, diodes, and a common output, a free-wheeling... Read More
Inventors: Fabianowski, Jan; Ibach, Robert; Gierse, Georg;, Assignee: |
Stabilized power supply with reduced ripple factor
What is claimed is: 1. A stabilized power supply with a reduced ripple factor, especially for X-ray tubes, comprising: a first rectifier which can be connected to an electrical mains supply, a convert... Read More
Inventors: Callier, Bernard; Maynard, Jean-Pierre;, Assignee: General Electric CGR S.A. (Issy les Moulineaux, FR) |
D.C. solenoid control circuit
What is claimed is: 1. A control apparatus comprising: an A.C. motor with first and second input leads; a D.C. solenoid having a winding, the solenoid operating a device; a source of A.C. electrical p... Read More
Inventors: Verbos, Stephen P.;, Assignee: Lift Tech International Inc. (Muskegon, MI) |
Power generating equipment
OF THE PREFERRED EMBODIMENTS The alternating current electrical power generating system shown in FIG. 1 comprises a wind driven turbine 1 coupled via a shaft 3 to one input of a main differential dri... Read More
Inventors: Law, Hilton;, Assignee: The English Electric Company Limited (GB2) |
Engine starter motor
An object of the present invention is to provide an engine starter motor in which there is no bending moment produced and a smooth pinion movement is assured. The starter motor according to the presen... Read More
Inventors: Isozumi, Shuzo; Tanaka, Toshinori;, Assignee: Mitsubishi Denki Kabushiki Kaisha (Tokyo, JP) |
Optical equipment of fiber laser Doppler velocimeter
OF THE INVENTION A description is made below of a detailed description of the present invention, with reference to the accompany drawings. Referring to FIGS. 1 to 3, the optical system of the fiber L... Read More
Inventors: Ikeda, Yuji; Nakajima, Tsuyoshi;, Assignee: |
Non-conventional reciprocating hydraulic-electric power source
A non-conventional electric power source including a reciprocating ram connected through a pair of passageways to a supply of hydraulic fluid under pressure. Means alternately blocking said passageway... Read More
Inventors: Rombach, James C.; Coakley, James L.;, Assignee: HR Textron Inc. (Valencia, CA) |
Current mode motor control
Current mode control involves generating a motor current reference for comparison with actual instantaneous motor current. The difference or error signal is fed to a circuit which generates gating si... Read More
Inventors: Gritter, David J.;, Assignee: Eaton Corporation (Cleveland, OH) |
Generators or Motors 
