Patents Represented by Attorney, Agent or Law Firm Robert H. Kelly
  • Battery charging system
    Patent number: 5122722
    Abstract: A battery charging system for a multi-cell battery charger operative to apply a charging current to one or more battery packs, each comprised of one or more battery cells. Initiation of application of a fast charging current is permitted only when the voltage levels taken across output terminals of a battery pack positioned at the battery charger, and the ambient temperature of such battery pack, is within desired ranges. After initiation of application of the fast charging current, the ranges of voltage and ambient temperature levels within which application the fast charging current is permitted are expanded to prevent termination of application of the fast charging current responsive to transient changes of the temperature and voltage levels.
    Type: Grant
    Filed: January 17, 1991
    Date of Patent: June 16, 1992
    Assignee: Motorola, Inc.
    Inventors: Terrance J. Goedken, James F. Goedken
  • Method for assembling a heat sink to a circuit element using a retentive spring force
    Patent number: 5122480
    Abstract: A heat sink/electromagnetic shield assembly for a circuit element disposed upon a circuit board. A spring clip containing at least one hooked projection forming the spring is positioned in a confronting relationship with the circuit element. A U-shaped housing is slidingly positioned over the circuit element and the spring clip to enclose the circuit element and to compress the hooked projection which forms the spring. Compression of the hooked projection causes the hooked projection to exert a spring force to retain the housing in position about the circuit element. The assembly may be constructed in-line during construction of the electrical circuit disposed upon the circuit board.
    Type: Grant
    Filed: January 23, 1991
    Date of Patent: June 16, 1992
    Assignee: Motorola, Inc.
    Inventors: Michael G. Galich, Dale G. Johnson
  • Battery charging system
    Patent number: 5121047
    Abstract: A system and associated method for fast charging a battery. The current level of a fast charging curent supplied to a battery for the charging thereof is monitored. When the charging current falls below a predetermined level for a certain proportion of a time period, fast charging of the battery is terminated.
    Type: Grant
    Filed: June 1, 1990
    Date of Patent: June 9, 1992
    Assignee: Motorola, Inc.
    Inventors: Terrance J. Goedken, James F. Goedken
  • Capacitive power supply
    Patent number: 5121288
    Abstract: A capacative power supply for powering a portable electrical device, such as a radiotelephone. The capacitive power supply is comprised of capacitors stacked vertically in a series connection of capacitive values capable of generating currents of levels great enough to power a radiotelephone for an extended period of time.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: June 9, 1992
    Assignee: Motorola, Inc.
    Inventors: Michael P. Metroka, Rolland R. Hackbart
  • Error detection system
    Patent number: 5113400
    Abstract: An error detection system for a discrete receiver. The error detection system indicates bad frames of binary information signals which contain distorted bits in densities so great as to cause a convolutional decoder to generate an incorrect, decoded signal. A signal decoded by a convolutional decoder is re-encoded by an encoder, and the re-encoded signal is compared with the signal received by the receiver. When portions of the re-encoded signal differ too greatly from the actual, received signal, a bad frame indication is generated.
    Type: Grant
    Filed: November 21, 1990
    Date of Patent: May 12, 1992
    Assignee: Motorola, Inc.
    Inventors: Adam F. Gould, Phillip D. Rasky
  • Telephone hang-up cup having rectractable latch member operative responsive to actuation force applied at either side thereof
    Patent number: 5113436
    Abstract: A telephone receptacle for releasably affixing a portion of a telephone handset thereto. A retractable latch member latchingly engages with a corresponding, mated latching surface formed on the telephone handset when the latch member is positioned in the latch position. An actuation force applied to either the left-hand side portion, or the right-side portion of the telephone receptacle retracts the retractable latch member into a release position thereby permitting the telephone handset to be removed from the telephone receptacle.
    Type: Grant
    Filed: April 30, 1990
    Date of Patent: May 12, 1992
    Assignee: Motorola, Inc.
    Inventors: John P. Jarvela, Michael F. Spence
  • System for synthesizing a modulated signal
    Patent number: 5077757
    Abstract: A modulation system and associated method therefor for synthesizing a modulated signal. Information is converted into an in-phase signal portion and a quadrature signal portion. The two signal portions are combined by summation and difference operations, and the results are stored in registers. A multiplexer samples the resultant values stored in the registers wherein each register is sampled at least once during a period defined by a frequency of a carrier. The output of the multiplexer is a synthesized, modulated signal.
    Type: Grant
    Filed: July 30, 1990
    Date of Patent: December 31, 1991
    Assignee: Motorola, Inc.
    Inventor: Stephen V. Cahill
  • Capacitive power supply having charge equalization circuit
    Patent number: 5063340
    Abstract: A capacitive power supply having a charge equalization circuit. The charge equalization circuit is comprised of a shunt circuit connected in a parallel connection with capacitive elements of the capacitive power supply. Once a charging current is applied to the capacitive power supply to store charge thereupon to form thereby a potential difference across the capacitive elements of a pre-determined level, the shunt circuit forms a shunt to shunt the charging current thereto.
    Type: Grant
    Filed: October 25, 1990
    Date of Patent: November 5, 1991
    Assignee: Motorola, Inc.
    Inventor: John A. Kalenowsky
  • Dual mode power amplifier for radiotelephone
    Patent number: 5060294
    Abstract: A dual mode power amplifier operable in etiher the linear mode or the saturation mode. The power amplifier, when comprising a portion of a radio transmitter, permits efficient amplification of either a frequency modulated or a composite modulated signal by operation of the amplifier in the saturation mode or the linear mode, respectively. A processor determines the modulation-type of the signal and generates a signal to cause operation of the amplifier in either the saturation mode or the linear mode.
    Type: Grant
    Filed: July 5, 1990
    Date of Patent: October 22, 1991
    Assignee: Motorola, Inc.
    Inventors: Dale G. Schwent, Rashid M. Osmani, Gary M. Cristiano
  • System for determining battery charge states and charging sequence for a battery charger
    Patent number: 5057762
    Abstract: A battery charging system for determining battery charge states of batteries positioned to be charged by a battery charger. A fast charging current is supplied for short intervals to each of the batteries during a charge state determination period. After the end of the charge state determination period, the battery charge states of each of the batteries is determined. The determined battery charge states may be utilized to form a battery charging priority sequence for sequentially charging the batteries.
    Type: Grant
    Filed: July 30, 1990
    Date of Patent: October 15, 1991
    Assignee: Motorola, Inc.
    Inventors: Terrance J. Goedken, James F. Goedken
  • Electromagnetic shield for electrical circuit
    Patent number: 5053924
    Abstract: An electromagnetic shield for absorbing electromagnetic energy generated by a circuit disposed upn a circuit board. The shield is comprised of a thermally conductive material to further provide heat-sink capabilites. Clip members releasably fastened to a flange projecting from a shielding surface formed by the shield are aligned with the ground plane of a circuit board. By maintaining the shield in a confronting relationship with the circuit board, the clip members are caused to maintain the shielding surface in electrical contact with the circuit.
    Type: Grant
    Filed: March 30, 1990
    Date of Patent: October 1, 1991
    Assignee: Motorola, Inc.
    Inventor: Jeffery F. Kurgan
  • Dielectric filter construction
    Patent number: 5045824
    Abstract: A ceramic filter mountable on a multi-layer circuit board. The filter contains a two-level mounting surface for matingly engaging with a circuit board. One surface portion of the two-level mounting surface extends through a recessed area formed upon a surface of the circuit board. By mounting the filter such that the mounting surface matingly engages with the recessed area of the circuit board, the heightwise requirement of the filter above the surface of the circuit board is reduced.
    Type: Grant
    Filed: September 4, 1990
    Date of Patent: September 3, 1991
    Assignee: Motorola, Inc.
    Inventor: Michael P. Metroka
  • Transceiver mounting assembly having integrally formed lock
    Patent number: 5038253
    Abstract: A mounting assembly for mounting a transceiver thereupon. The mounting assembly is integrally formed of a flexible material, and permits affixation of the transceiver thereto when the transceiver is positioned in a confronting relation upon the assembly, and then translated into a locking position thereupon. A lock formed integral with the mounting assembly locks the transceiver in the locking position. Application of an actuation force upon the lock unlocks the transceiver to permit translation of the transceiver out of the locking position to permit the transceiver to be lifted thereaway.
    Type: Grant
    Filed: May 14, 1990
    Date of Patent: August 6, 1991
    Assignee: Motorola, Inc.
    Inventors: Daniel J. Repplinger, Brian D. Kay, Gary R. Weiss
  • Heat sink assembly
    Patent number: 5031028
    Abstract: A heat sink/electromagnetic shield assembly for a circuit element disposed upon a circuit board. A spring clip containing at least one hooked projection forming the spring is positioned in a confronting relationship with the circuit element. A U-shaped housing is slidingly positioned over the circuit element and the spring clip to enclose the circuit element and to compress the hooked projection which forms the spring. Compression of the hooked projection causes the hooked projection to exert a spring force to retain the housing in position about the circuit element. The assembly may be constructed in-line during construction of the electrical circuit disposed upon the circuit board.
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: July 9, 1991
    Assignee: Motorola, Inc.
    Inventors: Michael G. Galich, Dale G. Johnson
  • Latch assembly
    Patent number: 5028083
    Abstract: A latch assembly for maintaining a battery in position upon a portable telephone. The latch assembly includes a latch body having at least one face surface forming a latching surface for abuttingly engaging with the battery to maintain the battery in position. A spring member exerts a spring force for maintaining the latch body and, hence, the latching surface formed thereupon in the abutting relationship with the battery. A downward force exerted upon the latch body causes translation thereof to remove the latching surface from the abutting engagement with the battery.
    Type: Grant
    Filed: April 27, 1990
    Date of Patent: July 2, 1991
    Assignee: Motorola, Inc.
    Inventor: Nicholas Mischenko
  • Apparatus for gripping tubes in multirow plate fin coils
    Patent number: 4993145
    Abstract: An apparatus for gripping a tube end of a plate fin heat exchanger by a pair of coacting jaw grippers movable both longitudinally and radially with respect to the tube end. The coacting jaw grippers are positioned such that the tube ends of a multirow coil can be gripped along any row of the coil.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: February 19, 1991
    Assignee: Carrier Corporation
    Inventor: Kenneth P. Gray
  • Embossed vortex generator enhanced plate fin
    Patent number: 4984626
    Abstract: An enhanced plate fin of a plate fin heat exchanger wherein vortex generator enhancements are embossed above and below the surface of the plate fin for the purpose of oversizing the boundary layer fluid between adjacent fins.
    Type: Grant
    Filed: November 24, 1989
    Date of Patent: January 15, 1991
    Assignee: Carrier Corporation
    Inventors: Jack L. Esformes, Lawrence W. Ubowski
  • Electric heater coil assembly termination apparatus and method of use
    Patent number: 4981029
    Abstract: A method and apparatus for forming an electric resistance heating coil of desired resistance that involves forming a straight end or pigtail at the ends of the coil whereby electrical connectors can be connected to the aligned pigtails and end insulators can separate the electrical connectors.
    Type: Grant
    Filed: October 26, 1989
    Date of Patent: January 1, 1991
    Assignee: Carrier Corporation
    Inventor: Arthur Evans
  • Cambered condenser grill
    Patent number: 4976115
    Abstract: An outdoor grill assembly for use in conjuction with an axial fan is disclosed. The assembly has cambered grill elements which increase the fan efficiency and lower the noise level associated with the fan. A grill having mirror image sections of cambered elements also controls recirculation of air from the discharge to the inlet.
    Type: Grant
    Filed: August 21, 1989
    Date of Patent: December 11, 1990
    Assignee: Carrier Corporation
    Inventor: Mark R. Hogan
  • Method of making a heat exchanger for condensing furnace
    Patent number: 4947548
    Abstract: A corrosion resistant condensing heat exchanger is formed from a flat sheet of engineering metal with a layer of polypropylene sheet material laminated thereto. Each condensing heat exchanger has a condensing flow passage of serpentine shape formed in the laminated flat sheet of engineering metal such that the polypropylene layer will be exposed to the flue gas/condensate environment to provide corrosion resistance to the metal.
    Type: Grant
    Filed: July 3, 1989
    Date of Patent: August 14, 1990
    Assignee: Carrier Corporation
    Inventor: Richard M. Bentley