Patents Represented by Law Firm Haight & Hofeldt
  • Patent number: 4920301
    Abstract: A compact capacitor discharge and strobe light beacon system is disclosed which is designed to be used in a conventional incandescent aircraft warning light fixture. The system comprises: a step-up transformer; a pulse shaping network for rectifying the output of the transformer to pulsating DC, capacitor means connected to the output of the pulse shaping network, a choke, at least two xenon lamps with terminals and connected across the terminals of an energy storage capacitor through the choke, and a switch which fires the lamps.
    Type: Grant
    Filed: November 15, 1988
    Date of Patent: April 24, 1990
    Inventor: James M. Crooks
  • Patent number: 4911211
    Abstract: An apparatus and method for changing the antifreeze in a vehicle requires only a garden hose and opening of the radiator cap. Water from the hose is utilized to prime a conduit for siphoning used coolant from a side tank radiator and for refilling the radiator. By operating the vehicle with fresh water in the radiator, coolant remaining in the system is mixed with the water, and repeated drainings decrease the remaining used antifreeze by about one-half each time. After removal of the desired amount of antifreeze, new antifreeze may be placed in the radiator.
    Type: Grant
    Filed: July 28, 1989
    Date of Patent: March 27, 1990
    Inventor: Robert A. Andersen
  • Patent number: 4895169
    Abstract: Stimulating electrodes, such as defibrillation or pacing electrodes, are constructed utilizing a metal and its chloride, preferably tin and stannous chloride. The electrodes are relatively large and sufficiently flexible to substantially conform to the area of the body on which they are placed. An electrically conductive medium, such as a saline gel, is placed over a conductive plate having at least a surface formed substantially of tin, to which a quantity of stannous chloride is affixed. In a preferred form, the stimulating electrodes are provided as a disposable set.
    Type: Grant
    Filed: February 9, 1988
    Date of Patent: January 23, 1990
    Assignee: Darox Corporation
    Inventor: Roger L. Heath
  • Patent number: 4896136
    Abstract: A combination brake light and interior light for mounting on the rear door of a truck cap. The combination light includes a housing mounted on the rear door of the truck cap. The housing holds a brake light indicator lens on one side, facing the rear door. When the rear door is closed, the brake light indicator lens is substantially vertically disposed. Proximate to the brake light indicator lens, a brake light bulb is disposed within the housing. Apparatus for energizing the brake light bulb upon operation of the truck brakes are included. Additionally, an interior light lens is held on another side of the housing. Proximate to the interior light lens, an interior light bulb is held within the housing. Apparatus for selectively energizing the interior light bulb are also included.
    Type: Grant
    Filed: December 14, 1987
    Date of Patent: January 23, 1990
    Assignee: Creation Windows, Inc.
    Inventor: Robert Hotovy
  • Patent number: 4889335
    Abstract: An exercise bicycle is disclosed comprising: a frame; energy absorbing structure rotated on the frame about a first shaft; a transmission for free wheeling a second shaft using at least one foot pedal, for rotatably connecting the first shaft and the second shaft, for rotating a roller eccentrically through a predetermined orbit relative to a third shaft and for rotatably connecting the third shaft to free the second shaft; a pivot arm which is pivotally mounted at one end to the frame and which has an opposite end which is adapted to be pulled by the human hand; and yoke structure for coupling the arm to the roller such that reciprocating motion of the arm is translated to rotation of the third shaft.
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: December 26, 1989
    Assignee: Diversified Investments Corporation
    Inventor: Pao-Chaing Chen
  • Patent number: 4885444
    Abstract: A switchgear operating mechanism is disclosed which includes two helical springs which are stretched to store energy to close and then open circuit breaker contacts. A mechanism is provided for stretching the springs in response to reciprocating movement of a hook stick. A single operating handle is provided with a spring biased detent arrangement such that the handle may be moved from a predetermined reset position to a closed position to close the circuit breaker contacts using energy from the charged springs. The handle is returned to the reset position by the spring biased detent arrangement and may be moved from that position to an open position to open the circuit breaker contacts using energy from the charged springs. The handle is preferably operable by a shot gun type hook stick.
    Type: Grant
    Filed: April 26, 1988
    Date of Patent: December 5, 1989
    Assignee: Cooper Industries, Inc.
    Inventors: Lawrence W. Lazar, Ronald A. Wainio
  • Patent number: 4879441
    Abstract: A dielectric barrier system for a vacuum switch is disclosed comprising: a dielectric barrier having three generally flat elongated rectangular walls, and means for holding the barrier at a spaced distance apart from the vacuum switch and from a high voltage conductor which is disposed at a spaced distance from the sides of the switch and along a path which includes a position which is generally adjacent to the opposite end to which the conductor is connected to the vacuum switch.
    Type: Grant
    Filed: August 4, 1988
    Date of Patent: November 7, 1989
    Assignee: Cooper Industries, Inc.
    Inventors: Sidney R. Hamm, Ronald A. Wainio
  • Patent number: 4872262
    Abstract: A holder and method of forming a holder for a removable plug-in circuit element is disclosed. The fuse holder comprises an insulated base, an electrical bus member, and a plurality of terminal members which are formed from the same blank of metal as the metal bus member and which were separated from each other after that blank was mounted on the insulated base. The bus member comprises a plurality of branches joined to a common trunk with each branch having at its free end an integral terminal. Each terminal member has at one end an electrical terminal and, at an opposite end, an integral terminal which is aligned to the free end of one lateral branch. In one embodiment of the invention, the holder includes an insulated cover which is carried by the base and which has a plurality of apertures which aligned to the terminals of each branch so as to receive the ends of a removable plug-in circuit element therein.
    Type: Grant
    Filed: August 15, 1988
    Date of Patent: October 10, 1989
    Assignee: Cooper Industries, Inc.
    Inventor: David R. Marach
  • Patent number: 4852359
    Abstract: An ice-maker for use in a freezer compartment and a process of making clear ice cubes are disclosed. The ice-maker includes an ice-forming tray supported on a carrier body. The carrier body has a housing with an air-circulating fan directing a flow of air toward the tray during the ice-making process. The apparatus also includes means for moving the ice-forming tray during the ice-making process, to allow gases to escape so that substantially clear ice cubes are formed. In the process of the invention, the ice-maker is placed in the freezer compartment of a refrigerator. An ice-forming tray is placed on the carrier body. Cold air from the freezer compartment is blown across the tray during the ice-making process. The ice-forming tray is moved during the ice-making process to allow entrapped gases in the water to escape. With or without the air-circulating fan, the apparatus and process may cause the carrier body to move in at least two different axis.
    Type: Grant
    Filed: July 27, 1988
    Date of Patent: August 1, 1989
    Inventor: Ermanno J. Manzotti
  • Patent number: 4852511
    Abstract: A traffic barrier is disclosed copmrising: two high visibility panels supported by a pair of legs joined by a cross-member, and a flexible substantially closed container which is supported by the legs or cross-members and adapted to be filled with a liquid for adding to the weight and stability of the structure. The liquid container allows the barrier to be easily moved, transported, and placed in use.
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: August 1, 1989
    Inventors: Art Look, Joseph Valenti
  • Patent number: 4852585
    Abstract: Physiological electrode elements are constructed of tin and stannous chloride. The tin may be provided in any of a variety of ways, such as a solid tin plate or foil, or the tin may be plated over either an electrically conducting or electrically non-conducting substrate. A quantity of stannous chloride is affixed to the tin. A suitable conducting medium, such as a saline gel, is placed over the stannous chloride to provide a conductive path for electrical current between the tin and the skin of a patient to which the electrode is attached. In a particular preferred embodiment, the tin-stannous chloride electrode elements are made considerably larger than conventional ECG electrodes in order to be able to convey relatively large amounts of electrical energy associated with stimulating and therapeutic applications, as well as providing low impedance to the passage of the relatively small signals associated with monitoring.
    Type: Grant
    Filed: February 9, 1988
    Date of Patent: August 1, 1989
    Assignee: DaRox Corporation
    Inventor: Roger L. Heath
  • Patent number: 4850356
    Abstract: A defibrillator cable is provided in two separate embodiments. In one embodiment, the conventional paddles and their associated leads are replaced by the present defibrillator cable, which includes a discharge control device in the cable. In the other embodiment, a paddle adapter module is provided to permit use of the conventional paddles with the electrode set of the present invention. This paddle adapter has a pair of conducting plates against which the paddles may be pressed to complete an electrical conducting path for the defibrillator signals. An audible alarm is provided to let the operator known when appropriate contact between the paddles and the adapter plates has been achieved, as well as to warn other personnel that a high energy shock is to be applied. The paddle adapter may also be provided with an ECG output terminal connected to the defibrillator leads and provided with high voltage protection, a low pass filter and a body tissue impedance simulating circuit.
    Type: Grant
    Filed: February 9, 1988
    Date of Patent: July 25, 1989
    Assignee: DaRox Corporation
    Inventor: Roger L. Heath
  • Patent number: 4847780
    Abstract: Apparatus is disclosed for monitoring an A.C. distribution line comprising a novel split transformer core which may be inserted remotely about a distribution feeder line without de-energizing of that line, an encoder for producing a train of voltage signals whose duration are characteristic of the magnitude of the A.C. current flowing through the line and for producing a train of light pulses from the voltage levels which characterize the magnitude of the A.C. current flowing through the line, a decoder which is opticlaly linked to the encoder for measuring the time intervals of the light pulses and for converting the time intervals into a numerical value representing the current flowing through the line.
    Type: Grant
    Filed: August 21, 1987
    Date of Patent: July 11, 1989
    Assignee: Tennessee Valley Public Power Association
    Inventors: Clyde Gilker, Michael P. Dunk, Thomas G. Dolnik, Ross S. Daharsh, Mark A. Berezinski
  • Patent number: 4834103
    Abstract: A disposable electrode set is provided in which a single pair of electrodes have the capability of transmitting signals for monitoring, stimulating and therapeutic applications. The electrodes have a metal-metal chloride (preferably tin-stannous chloride) structure to give suitable signals for monitoring, while also providing for the transfer of high energy stimulating and therapeutic signals. Transfer of the stimulating and therapeutic signals requires that the electrodes be formed with a suitable size and shape to accommodate the high energy signals. Each of the electrodes is connected to a plug, which is a part of the disposable set, by a suitable conducting line. The plug is standarized so that the disposable set can be connected to any one or any combination of the monitoring, stimulating and therapeutic devices.
    Type: Grant
    Filed: February 9, 1988
    Date of Patent: May 30, 1989
    Assignee: DaRox Corporation
    Inventor: Roger L. Heath
  • Patent number: 4817115
    Abstract: An encoding and decoding system for electronic data communication system, wherein each character to be transmitted is encoded as a unique multi-bit binary value. The total number of bits as well as the number of logic one bits in all unique multi-bit binary values are the same. A pulse generating means generates a wide pulse for each logic one and a narrow pulse for each logic zero. The pulses which make up a unique pulse form for each data character to be transmitted are of alternating polarity and are transmitted as analog signals.
    Type: Grant
    Filed: February 27, 1987
    Date of Patent: March 28, 1989
    Assignee: Telxon Corporation
    Inventors: James A. Campo, Jeffrey W. Sutherland, Carl E. Krill, III
  • Patent number: 4798546
    Abstract: A novel fuse holder for a fuse as described for a fuse of the type having two generally flat, parallel spaced apart, oppositely disposed electrical contacts. The fuse holder comprises an insulating block and a fuse clip which is formed from a single strip of electrically conducting material and which is carried within the fuse block. The fuse clip features an elongated base member, a pair of spaced apart arms joined to one end of the base member, and a pair of springingly loaded, generally elongated, bifurcated fuse accepting contacts. Each fuse accepting contact is comprised of a flat fuse contacting section and a flat fuse accepting section.
    Type: Grant
    Filed: December 3, 1987
    Date of Patent: January 17, 1989
    Assignee: Cooper Industries, Inc.
    Inventor: William G. Herbert
  • Patent number: 4788985
    Abstract: A simple, inexpensive and accurate device of collecting human cells from a body cavity for cytodiagnosis comprising an absorbent carrier which contains an internal, rupturable fluid sac, a means for rupturing the fluid sac and an absorbent outer covering for collection of the cell sample.
    Type: Grant
    Filed: November 10, 1987
    Date of Patent: December 6, 1988
    Assignee: Medtest Corporation
    Inventors: Patrick R. Manning, Donald W. West
  • Patent number: 4757636
    Abstract: An insulated aerated live bait bucket is disclosed comprising a container for water formed from a bottom wall and a side wall with a bottom wall having an aperture therein for the admission of air into the water, an insulated liner which fits within the side wall and atop the bottom wall of the container with an opening therein which is in alignment with the aperture and the bottom wall of the container and the structure for removably holding the liner within the container. In one embodiment the holding structure is formed from a plurality of hooked clips. In another embodiment the holding structure is formed from a skirted washer. In addition an improved arrangement of the aeration system is disclosed.
    Type: Grant
    Filed: October 22, 1987
    Date of Patent: July 19, 1988
    Inventor: Robert G. Lambourn
  • Patent number: D296865
    Type: Grant
    Filed: May 17, 1984
    Date of Patent: July 26, 1988
    Assignee: Paratech Incorporated
    Inventor: George F. Roxton
  • Patent number: D303663
    Type: Grant
    Filed: October 1, 1986
    Date of Patent: September 26, 1989
    Assignee: Telxon Corporation
    Inventors: Rajendra Kumar, Kim R. Lewis