Overload detecting scheme for an electric propulsion system for traction vehicles
A general objective of this invention is to provide an improved overload detecting scheme for the electric propulsion system of a traction vehicle. It is another object of the invention to provide an ... Read More
Inventors: Johansson, August V.; Schneider, Joseph D.;, Assignee: General Electric Company (Erie, PA) |
Hybrid power switch
A typical embodiment applying the principles of the present invention will be hereinafter described with reference to a three-phase power system, however, it will be readily understood by those skille... Read More
Inventors: Metzler, Albert;, Assignee: International Telephone and Telegraph Corporation (New York, NY) |
Switching regulator provided with error amplifier circuit having overcurrent protecting function
What is claimed is: 1. A switching regulator comprising an oscillator circuit for chopping a DC voltage supplied from a source of input voltage to thereby drive a transformer; a first rectifier circui... Read More
Inventors: Koike, Tsutomu;, Assignee: Toko, Inc. (Tokyo, JP) |
Method and apparatus for signal recognition in a remote control system with influencing of the zero point transition of the alternating-current mains voltage
Therefore, an important object of the present invention is to overcome the above-mentioned disadvantage and, in particular, to provide a simple method for recognising a remote control signal of the me... Read More
Inventors: Baumann, Eduard; Kniel, Roger;, Assignee: Zellweger Limited (Uster, CH) |
Magnetic disk cartridge
The primary object of the present invention is to provide a magnetic disk cartridge which is small and thin in size and which can be assembled with high efficiency. Another object of the present inven... Read More
Inventors: Oishi, Kengo; Suzuki, Osamu;, Assignee: Fuji Photo Film Co., Ltd. (JP) |
Method and apparatus for controlling power supply
The object of the present invention is to provide a method and apparatus for controlling power supply. According to one aspect of the present invention, there is provided a power supply controlling ap... Read More
Inventors: Ninomiya, Ryozi;, Assignee: Kabushiki Kaisha Toshiba (Kawasaki, JP) |
Inverter controlled series compensator
These needs and others are satisfied by the invention which is directed to an inverter-controlled series compensator (ICSC) having a reactive element, either an inductor or capacitor, connected in ser... Read More
Inventors: Nelson, Robert J.; Ramey, Donald G.;, Assignee: Westinghouse Electric Corporation (Pittsburgh, PA) |
Thermal relays particularly for starting single-phase asynchronous motors
We claim: 1. A thermal relay particularly for starting single phase asynchronous motors comprising a housing, a resistor of a material of positive temperature coefficient of resistivity within the hou... Read More
Inventors: De Filippis, Pietro; Salvatore, Amedeo; Trama, Luigi; Notaro, Giuseppe;, Assignee: Texas Instruments Incorporated (Attleboro, MA) |
Mine vehicle safety apparatus
Among the several objects of this invention may be noted the provision of an improved mine safety system for use with a direct current power system in which a direct current supply delivers power via ... Read More
Inventors: Gill, Ronald P.; Tucker, Dempsey G.; Hull, Jr., John E.;, Assignee: Peabody Coal Company (St. Louis, MO) |
Power managing apparatus and method
The present invention is made in consideration of the above situations and it is an object of the invention to provide a power manager which can supply an electric power for at least a set time. Accor... Read More
Inventors: Matsubayashi, Kazuhiro; Shimada, Kazutoshi; Tatsumi, Eisaku; Mori, Shigeki; Sunakawa, Shinichi; Harada, Takashi; Nagasaki, Katsuhiko;, Assignee: Canon Kabushiki Kaisha (Tokyo, JP) |
Apparatus for determining the position of a surface
We claim: 1. Apparatus for determining the position of an opaque surface comprising: means for providing a light beam having a predetermined cross-section and for projecting the beam obliquely onto t... Read More
Inventors: Nodwell, Roy A.; Richards, Steven L. F.;, Assignee: Canadian Patents and Development Limited (Ottawa, CA) |
System for developing heat responsive film
I claim: 1. In a film developing system for developing a heat responsive film where the desired time of exposure of the film to a heat source is defined by a given formula which is a function of an as... Read More
Inventors: Lewis, Gary D.;, Assignee: Energy Conversion Devices, Inc. (Troy, MI) |
Method for mold temperature control
What is claimed is: 1. An improved method of controlling the temperature of an injection mold by pressure feeding molding material into a mold recess of an injection mold by an extruder curing the mat... Read More
Inventors: Kotzab, Werner;, Assignee: |
Process and plant for the manufacture of solid castings from an essentially liquid reactive medium, and oven for heating an essentially liquid medium.
That aim is achieved in accordance with the process by substantially preheating the casting material to a temperature close to but below its gelation temperature directly before it enters the casting ... Read More
Inventors: Mallah, Mohamad; Linn, Horst; Saner, Niklaus; Voirol, Peter;, Assignee: Ciba Specialty Chemicals Corporation (Tarrytown, NY) |
Electronic watch with conductor tracks formed on the watch glass
In order to overcome these disadvantages, the present invention concerns an analog or digital electronic watch in which the conductor tracks connecting the different components of the watch are formed... Read More
Inventors: Muller, Jacques; Mock, Elmar;, Assignee: ETA, S.A., Fabriques d'Ebauches (CH) |
Polychromatic photometer
What is claimed is: 1. Polychromatic photometer comprising a sample wheel having a plurality of sample compartments therein arranged in a circle with the compartments being equiangularly spaced apart,... Read More
Inventors: Haar, Hans-Peter; Edelmann, Hermann; Klose, Sigmar;, Assignee: Boehringer Mannheim GmbH (Mannheim-Waldhof, DE) |
Absolute spectrophotometer
An improved spectrophotometer that has a light source, a scanning type monochromator that has an entrance slit and an exit slit for a light beam from the light source and contains a movable light disp... Read More
Inventors: Lee, Jerald D.; Reilly, Charles D.;, Assignee: E. I. Du Pont de Nemours & Co. (Wilmington, DE) |
Absorbance monitor
What is claimed is: 1. A method comprising the step of: focusing light with a mirror from a small spot on the light emitting portion of a gas discharge lamp including at least a small portion of its c... Read More
Inventors: Allington, Robert W.;, Assignee: ISCO, Inc. (Lincoln, NE) |
Photometric apparatus with multi-wavelength excitation
I claim: 1. Apparatus for providing a source of optical energy to a fluid medium and for measuring the optical properties of a sample within said fluid medium comprising: a source of radiation capable... Read More
Inventors: Nelson, Kenneth E.;, Assignee: Millipore Corporation (Bedford, MA) |
On-line sheet formation characterizing method and device
The present invention is directed to a method and device which provide a set of electrical output signals indicative of the following sheet formation parameters: (1) the magnitude of the variations in... Read More
Inventors: Chase, Lee M.; Orkosalo, Jorma; Norton, Kent M.;, Assignee: Measurex Corporation (Cupertino, CA) |
Wireless temperature calibration device and method
Precise and repeatable calibration of wafer temperature sensors, such as pyrometry, has been a problem. Generally, and in one form of the invention, a device and method for calibrating at least one te... Read More
Inventors: Moslehi, Mehrdad M.; Najm, Habib; Velo, Lino A.;, Assignee: Texas Instruments Incorporated (Dallas, TX) |
Lamp-heated chuck for uniform wafer processing
Accordingly, the present invention provides a lamp-heated radio-frequency (RF) plasma chuck for uniform semiconductor device processing which overcomes the problems and satisfies the needs previously ... Read More
Inventors: Moslehi, Mehrdad M.;, Assignee: Texas Instruments (Dallas, TX) |
Temperature measuring apparatus
The present invention is made to solve the above problems and its object is to provide a temperature measuring apparatus for automatically calculating a correction multiplier for correcting data measu... Read More
Inventors: Kobayashi, Seishiro; Nabei, Akiyoshi; Takashina, Shuichi; Fujishiro, Takashi;, Assignee: Anritsu Meter Co., Ltd. (Tokyo, JP) |
Device and method for receiving and reconstructing signals with improved perceived signal quality
In accordance with the present invention, a device for receiving and reconstructing signals with improved perceived signal quality in a digital communications system includes a recovery unit for recei... Read More
Inventors: Bottomley, Gregory Edward;, Assignee: Ericsson GE Mobile Communications Inc. (Research Triangle Park, NC) |
Apparatus for and a method of the determination of influenza neuraminidase
What we claim is: 1. Device for use in carrying out reaction such as the determination of influenza neuraminidase, comprising a titration plate having series of bores for accommodating reaction mixtur... Read More
Inventors: Takatsy, Gyula; Barb, Katalin; Muranyi, Istvan; Burda, Ferencne;, Assignee: Labor Muszeripari Muvek (Esztergom, HU) |
Test tube cassette system and cassettes for use therein
The present invention overcomes the above-noted deficiencies in prior art sample storage systems. More specifically, the present invention provides a sample storage system in which each sample tube ha... Read More
Inventors: Klein, David C.;, Assignee: |
Combined incubator and cuvette holding apparatus
The object of the present invention is above all to provide a fully automatic heterogeneous immunological assay system. A particular object is to provide a system in which the heating and washing step... Read More
Inventors: Partanen, Paul; Seppanen, Helena; Harjunmaa, Hannu;, Assignee: Labsystems OY (Helsinki, FI) |
Microplate heater for providing uniform heating regardless of the geometry of the microplates
It is an object of this invention to provide a heater capable of quickly heating each of the wells in a microplate array at the same rate, regardless of the microplate's bottom and peripheral geometry... Read More
Inventors: Kasman, David H.;, Assignee: |
Thermal cycler including a temperature gradient block
To achieve this object, the invention is a method in which a temperature gradient is generated across a "gradient" block. The invention also includes an apparatus comprising a block across which a tem... Read More
Inventors: Danssaert, John L.; Shopes, Robert J.; Shoemaker, Daniel D.;, Assignee: Stratagene (La Jolla, CA) |
Analytical device for separating magnetic microparticles from suspensions
OF THE INVENTION The subject invention will now be described in terms of its preferred embodiments. These embodiments are set forth to aid in the understanding of the subject invention, but are not t... Read More
Inventors: Knobel, Rolf;, Assignee: Hoffmann-La Roche Inc. (Nutley, NJ) |
Electrical and Wave 
