Patents Examined by E. A. Goldberg
  • Patent number: 5160942
    Abstract: A serial type thermal printer for printing while moving a carriage. The printer includes two thermal heads mounted on the carriage and arranged axially of a platen roller. Two ink film cassettes are arranged side by side on the carriage to be associated with the two thermal heads, respectively. A two-direction printing is effected where one of the thermal heads is pressed upon the platen roller during a forward movement of the carriage and the other head is pressed upon the platen roller during a backward movement thereof. A two-color or multicolor printing is carried out without changing the ink film cassettes where the cassettes contain ink films of different colors.
    Type: Grant
    Filed: July 23, 1987
    Date of Patent: November 3, 1992
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Yasukuni Omata, Yoshinori Osamura
  • Patent number: 5028935
    Abstract: A wide format thermal printhead is provided which comprises a baseplate; a first substrate with a border portion removed from a first edge thereof to form a second edge, the first substrate being mounted on the baseplate; and a second substrate with a border portion removed from a first edge thereof to form a second edge, the second substrate being mounted on the baseplate with the second edge of the second substrate abutting the second edge of the first substrate to form a print surface having an extended active print width. Also provided is a thermal recording device with wide format capabilities which comprises the wide format thermal printhead as described.
    Type: Grant
    Filed: November 17, 1986
    Date of Patent: July 2, 1991
    Assignee: Calcomp Group, Sanders Associates, Inc.
    Inventors: Ralph E. Warmack, Anne L. Moore, Ken W. Ricketts, Cecil R. Gilbreath
  • Patent number: 4978935
    Abstract: A high-speed, high-reliability electromagnetic relay particularly adapted for use in electronic systems with signal frequencies from DC in excess of 20 MHz. A ferro-magnetic armature is attached to an actuator plate made of dielectric material which is in contact with a flexible contact reed. One end of the contact reed is in fixed electrical contact with an input pin and the other end is movable between a normal position in electrical contact with a first output pin and a second position in electric contact with a second output pin. To improve resistance to environmental extremes such as shock and vibration, a permanent magnet can be located so that its attractive force holds the armature in the normal position.
    Type: Grant
    Filed: January 25, 1988
    Date of Patent: December 18, 1990
    Inventors: Jerzy Hoffman, Krzysztof J. Ciezarek
  • Patent number: 4977357
    Abstract: A material device for electronic circuitry that provides pro-tection from fast transient overvoltage pulses. The electroded device can additionally be tailored to provide electrostatic bleed. Conductive particles are uniformly dispersed in an insulating matrix or binder to provide material having non-linear resistance characteristics. The non-linear resistance characteristics of the material are determined by the interparticle spacing within the binder as well as by the electrical properties of the insulating binder. By tailoring the separation between conductive particles, thereby controlling quantum-mechanical tunneling, the electrical properties of the non-linear material can be varied over a wide range.
    Type: Grant
    Filed: January 11, 1988
    Date of Patent: December 11, 1990
    Inventor: Karen P. Shrier
  • Patent number: 4952897
    Abstract: The limiting circuit breaker comprises a Thomson effect propelling device for opening of the contacts.The main contact bridge is securedly united to an operating rod surrounded by an annular opening coil of the propelling device. The latter comprises an opening disk which is movable in relation to the rod and an annular piston securedly united to the rod, springs being disposed between the disk and the piston, so as to return the disk to the rest position facing the coil at the end of the opening travel.
    Type: Grant
    Filed: September 15, 1988
    Date of Patent: August 28, 1990
    Assignee: Merlin Gerin
    Inventors: Pierre Barnel, Francois Lindeperg, Jean-Pierre Nebon, Philippe Perrier
  • Patent number: 4933661
    Abstract: A throttle sensor for an internal combustion engine includes a circuit board and a rotatable body disposed adjacent the circuit board which is connected to the throttle valve and having a pair of brushes disposed in sliding contact with the circuit board. A resistance body, including a basic resistance layer and a protective resistance layer covering a basic resistance layer are formed on the circuit board for engagement by one of the brushes, and a collecting body, including an electric conductive layer and an additional protective resistance layer covering the electric conductive layer is formed on the circuit board for engagement by the other brush. The protective resistance layers protect the basic resistance layers against undue wear and atmospheric conditions.
    Type: Grant
    Filed: September 30, 1987
    Date of Patent: June 12, 1990
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Yukihisa Oda, Keiji Yasuda, Takayoshi Tsuzuki
  • Patent number: 4924074
    Abstract: A process for preparing an electrical device which has a conductive polymer exhibiting PTC behavior. The cross-linking may be to a level of 50 to 100 Mrad or higher for devices designed to withstand high voltage test conditions. The device may be a laminar device having a center layer of higher resistivity than two surrounding layers.
    Type: Grant
    Filed: January 3, 1989
    Date of Patent: May 8, 1990
    Assignee: Raychem Corporation
    Inventors: Shou-Mean Fang, Charles H. Camphouse
  • Patent number: 4918467
    Abstract: A paper drive system for a fiber optic cathode ray tube based recorder in which a rotating compliant foam pressure pad maintains the paper in intimate contact with the fiber optic faceplate. The paper web from a paper supply is gripped between a tire on the rotating pressure pad and a drive roller before passing the faceplate, and thereafter is gripped between the tire on the pressure pad and an idler roller.
    Type: Grant
    Filed: June 30, 1988
    Date of Patent: April 17, 1990
    Assignee: Honeywell Inc.
    Inventor: Herbert F. Sanford
  • Patent number: 4918290
    Abstract: A portable heating device includes a cabinet, a source of heat, support for a towel so as to exposed the towel to the heat, and an opening at the top to the heat. The towel heating device of the invention may be used to warm or dry towels or other like cloth materials.
    Type: Grant
    Filed: September 14, 1987
    Date of Patent: April 17, 1990
    Inventor: Robert A. DeMars
  • Patent number: 4912487
    Abstract: A laser pattern inspection and/or writing system which writes or inspects a pattern on a target on a stage, by raster scanning the target pixels. Inspection can also be done by substage illumination with non-laser light. A database, organized into frames and strips, represents an ideal pattern as one or more polygons. Each polygon's data description is contained within a single data frame. The database is transformed into a turnpoint polygon representation, then a left and right vector representation, then an addressed pixel representation, then a bit-mapped representation of the entire target. Most of the transformations are carried out in parallel pipelines. Guardbands around polygon sides are used for error filtering during inspection. Guardbands are polygons, and frames containing only guardband information are sent down dedicated pipelines. Error filtering also is done at the time of pixel comparisons of ideal with real patterns, and subsequently during defect area consolidation.
    Type: Grant
    Filed: March 25, 1988
    Date of Patent: March 27, 1990
    Assignee: Texas Instruments Incorporated
    Inventors: Vernon R. Porter, William G. Manns, Anthony B. Wood, S. Charles Baber, Thomas C. Penn
  • Patent number: 4912304
    Abstract: A thick-film incubator is used with a temperature control circuit and a mounting member on which the thick-film incubator is disposed. The thick-film incubator includes a ceramic substrate which has a first pair of conductive pads disposed at opposite ends thereof and a second pair of conductive pads disposed opposing each other thereon. A first layer of resistive ink is deposited on the ceramic substrate so that an open rectangular field is formed. The layer has a first end and a second end which are electrically coupled to each of the first pair of conductive pads, respectively, so that current can flow through the first layer in order to heat the ceramic substrate. A second layer of temperature-dependent resistive ink is deposited on the ceramic substrate adjacent, but not contiguous, to the layer of resistive ink.
    Type: Grant
    Filed: September 9, 1987
    Date of Patent: March 27, 1990
    Inventor: Jay E. Philippbar
  • Patent number: 4910491
    Abstract: An electrical apparatus is provided for use with a potentiometer or variable resistance element which does not require a mechanical connection between a contact member and an activating mechanism. This is accomplished by using a magnet in at least a portion of either the contact member or the activating mechanism while constructing at least a portion of the other of such contact member and the activating mechanism of a ferromagnetic material.
    Type: Grant
    Filed: November 6, 1987
    Date of Patent: March 20, 1990
    Assignee: WABCO Westinghouse Steuerungstechnik GmbH
    Inventors: Helmut Gottling, Ralf Kook, Rudolf Moller, Peter Muller, Gerhard Scharnowski
  • Patent number: 4910530
    Abstract: A thermal transcription printer has a thermal head (8), a platen (9), a pair of pinch rollers (10), (11) disposed on both sides of the platen and a gearing apparatus consisting of gears (31), (32) and (33) and oneway clutches (29) and (30) and the gearing apparatus over-drives or reduces the rotation speed of the pinch rollers (10) and (11) and coupling of the oneway clutches and the gears is selected for making peripheral velocity of a pinch roller at a forward position against the paper conveyance faster than that at a backward position.
    Type: Grant
    Filed: August 1, 1988
    Date of Patent: March 20, 1990
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hiroshi Fukumoto, Koji Namura, Kenichi Naruki, Ryuzo Une
  • Patent number: 4908599
    Abstract: A temperature-sensitive resistance element comprises an alumina substrate having terminals and a sinuous temperature-sensitive resistance layer thereon. The layer and terminals are formed of electroplated palladium which has been recrystallized.
    Type: Grant
    Filed: August 25, 1988
    Date of Patent: March 13, 1990
    Assignee: Lucas Electrical Electronic Systems Limited
    Inventors: Brian E. Breen, Ian R. Harris
  • Patent number: 4906967
    Abstract: An electronic circuit breaker having withstand capability. When the fault current exceeds the required withstand level, the mechanism force trips the circuit breaker. The forces generated by a blow-on contact loop are exerted on the various components of the operating mechanism, including the quick trip latch and secondary latch. As the fault current exceeds the required withstand level, the forces on the operating mechanism exceed the spring force holding together the quick trip latch and secondary latch. These two components rotate as one assembly during a trip operation initiated by energizing the trip coil. In the force trip operation, these two components separate unlatching the mechanism and opening the circuit breaker contacts.
    Type: Grant
    Filed: September 26, 1988
    Date of Patent: March 6, 1990
    Assignee: Square D Company
    Inventor: John M. Winter
  • Patent number: 4900898
    Abstract: An electric space heater includes an exterior case (10) which encloses an insulated heater core housing (12). Heat is generated in the heater core (14) by elongated incandescent ultraviolet lamps (64) mounted in a frame (60) inside the core housing (12). A porous aluminum sheet heat exchanger (68) surrounds the lamps (64) on three sides and extends the length of the lamps. A fan (34) mounted in an inlet opening (27) of a rear wall (22) of the case (10) forces air through an opening (52) in the core housing (12) through the heat exchanger (68) and around the lamps, and through outlet openings (28, 54) to the space to be heated. The core housing (12) is U-shaped with curved portions (46, 48) to laminate the air flow.
    Type: Grant
    Filed: January 20, 1988
    Date of Patent: February 13, 1990
    Inventor: William E. Kling, deceased
  • Patent number: 4893102
    Abstract: An electromagnetic contactor or motor controller is taught in which an energy efficient bounceless contact closing operation is utilized. An electromagnetic closing coil voltage is sensed by the contactor control system and compared against a memory menu of stored delay angles for a wide range of sensed voltages. The delay angles are applied to the conduction interval of a triac or similar gated device which is connected in series with the coil for controlling current flow therethrough. Depending upon the voltage sensed the amount of current flowing through the coil on a half cycle by half cycle basis is varied by the control system.
    Type: Grant
    Filed: August 8, 1988
    Date of Patent: January 9, 1990
    Assignee: Westinghouse Electric Corp.
    Inventor: James A. Bauer
  • Patent number: 4888602
    Abstract: A recording apparatus for recording on a sheet with a recording device includes a sheet conveying device, a bipositional sheet guiding member and independently operable driving mechanisms for the sheet conveying device and the bipositional sheet guiding member, so that a sheet is properly fed to a recording position when the sheet guiding member is in one position, and the sheet is properly guided during recording when the guiding member is in another position.
    Type: Grant
    Filed: December 22, 1987
    Date of Patent: December 19, 1989
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshitaka Watanabe, Yoshiyuki Mizoguchi, Hiroyuki Hiraga
  • Patent number: 4883946
    Abstract: The heating element (14) is in the form of a helical winding (31) made of a resistance heating wire which constitutes the central core of a coaxial cable (32) having a tubular metallic outer sheath and an insulating material interposed between the central core and the outer sheath. The coaxial cable (32) constitutes a helical winding (31). The apparatus can be used in particular for the heat treatment of the small bends of a bundle of tubes in a steam generator in a pressurized water nuclear reactor.
    Type: Grant
    Filed: March 25, 1988
    Date of Patent: November 28, 1989
    Assignee: Framatome
    Inventor: Paul Jacquier
  • Patent number: RE33325
    Abstract: An improved remotely controllable circuit breaker comprises a manually operable switching mechanism for opening and closing a single set of first and second contacts, a trip mechanism for opening the contacts upon occurrence of predetermined overload current conditions, and a remotely controllable switching mechanism for selectively opening and closing the contacts in response to a control signal remote from the breaker. The manually operable switching mechanism includes a movable contact arm carrying the first contact to be brought into and out of contacting engagement with the second contact by manipulation of a manual handle. The second contact is operatively connected to the remotely controllable switching mechanism to be driven thereby for movement between an operative position where the second contact is engageable with the first contact and an inoperative position where it is prohibited from being engaged with the first contact independently of the position of the first contact.
    Type: Grant
    Filed: April 7, 1987
    Date of Patent: September 4, 1990
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Yoichi Yokoyama, Hideya Kondo