Patents by Inventor Robert K. Bell

Robert K. Bell has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20190167322
    Abstract: The present invention relates to a series of orthopedic plates for use in repair of a bone. The plate has a Y-shaped profile or an X-shaped profile which includes an elongate central trunk with a complex contour and either one or two terminal pairs of arms that have a first arm and a second arm that form differing angles and lengths relative to the trunk portion of the plate. The arms include locking screw holes where the screws converge toward each other to provide for multiplanar fixation but which do not impinge.
    Type: Application
    Filed: January 30, 2019
    Publication date: June 6, 2019
    Applicant: ORTHOHELIX SURGICAL DESIGNS, INC.
    Inventors: Dustin DUCHARME, Robert H. BELL, Bryan D. Den Hartog, Rebecca F. KOCHER, Anil K. DUTTA, Thomas Bradley EDWARDS, David B. KAY, Andrew J. LEITHER, Derek S. LEWIS, Lee A. STRNAD, G. Martin WYNKOOP
  • Patent number: 8294530
    Abstract: A coupler assembly includes a monolithic body (5) with a bore (11) along a longitudinal axis. A coupler PCB chamber (7) with at least one coupler slot(s> (9) communicates between the PCB chamber and the bore. A coupler printed circuit board (15) is seated in the coupler PCB chamber. At least two couplers (17) are mounted upon the printed circuit board aligned generally parallel with the at least one coupler slot(s). A first side of each coupler may be coupled to a terminating load and a second side of each coupler may be coupled to a connection interface.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: October 23, 2012
    Assignee: Andrew LLC
    Inventors: Kendrick Van Swearingen, Frank A. Harwath, Robert K Bell
  • Publication number: 20100265005
    Abstract: A coupler assembly includes a monolithic body (5) with a bore (11) along a longitudinal axis. A coupler PCB chamber (7) with at least one coupler slot(s> (9) communicates between the PCB chamber and the bore. A coupler printed circuit board (15) is seated in the coupler PCB chamber. At least two couplers (17) are mounted upon the printed circuit board aligned generally parallel with the at least one coupler slot(s). A first side of each coupler may be coupled to a terminating load and a second side of each coupler may be coupled to a connection interface.
    Type: Application
    Filed: December 29, 2008
    Publication date: October 21, 2010
    Applicant: ANDREW LLC
    Inventors: Kendrick Van Swearingen, Frank A. Harwath, Robert K. Bell
  • Patent number: 4926144
    Abstract: A circuit for use in conjunction with a voltage controlled oscillator (VCO). The circuit introduces modulation into a radio system (to create a substantially flat frequency response) at the same VCO port at which VCO frequency centering and negative bias control signals are introduced. A potentiometer is utilized both for providing an adjustable negative bias to the varactor in the VCO resonant circuit and for setting the VCO to the appropriate center frequency. Modulation compensation circuitry is coupled to the control arm of the potentiometer and to the anode of the varactor (via a choke 4). The modulation compensating circuitry is preferably designed to have a transfer function that is substantially the inverse of the closed loop transfer function of the phase locked loop system with respect to the frequency modulation of the VCO.
    Type: Grant
    Filed: September 29, 1988
    Date of Patent: May 15, 1990
    Assignee: General Electric Company
    Inventor: Robert K. Bell
  • Patent number: 4642735
    Abstract: A two piece zinc die-cast housing and cover assembly includes an internal center wall structure which divides the included space into two electromagnetically isolated cavities. A VCO circuit sub-assembly and a PLL circuit sub-assembly are each removably affixed to respective opposite sides of the center wall while each is electrically interconnected to the other directly through at least one aperture provided in the center wall. A one piece molded plastic header is removably affixed to the assembly so as to close the remaining side of the electromagnetically isolated cavity and includes apertures through which electrical leads extend from the circuit sub-assemblies for self-aligning connection to sockets or other external electrical connectors. An additional internal metallic shield directly affixed to the VCO sub-assembly as well as other features cooperate to provide an overall improved frequency synthesizer module of this general type.
    Type: Grant
    Filed: February 27, 1984
    Date of Patent: February 10, 1987
    Assignee: General Electric Company
    Inventors: Roy F. Hodsdon, Robert K. Bell
  • Patent number: 4511861
    Abstract: The gain margin of a junction FET oscillator is improved by the addition thereto of a bipolar transistor in parallel with the FET for boosting the closed loop circuit gain of the oscillator without degrading the phase noise performance of the FET. The oscillator circuit is formed by a grounded gate JFET with a feedback circuit including the internal impedance of the FET, a capacitor which couples source and drain of the FET, a capacitor which couples the FET source to ground, and a resonant circuit coupled between the drain of the FET and ground including a varactor diode for controlling the oscillating frequency and providing a circuit output. A bipolar transistor is coupled in parallel with the FET by coupling its collector to FET's drain and its emitter to the FET's source. The base of the transistor is coupled via a by-pass capacitor to circuit ground.
    Type: Grant
    Filed: November 15, 1982
    Date of Patent: April 16, 1985
    Assignee: General Electric Company
    Inventor: Robert K. Bell