Patents Represented by Attorney, Agent or Law Firm Harold H. Dutton, Jr.
  • Electronic device for electrical energy conversion between a voltage source and a current source by means of controllable switching cells
    Patent number: 5737201
    Abstract: This invention relates to an electronic device for the conversion of electric energy between a voltage source E and a current source J. This device is comprised of cascaded switching cells (CL.sub.k) each having two switches (I.sub.Ak, I.sub.Bk) and comprising capacitors (C.sub.k) associated with the cells for distributing the voltage of the source over the switches, and control logics (LG.sub.k) which condition the exchanges of energy and are synchronized for limiting the voltage supported by each switch to a fraction (V/n) of the supply voltage, for limiting the ripple amplitude of the voltage of the output to the same fraction V/n and for conferring on this ripple voltage a frequency (nF) which is a multiple of the switching frequency (F) of the switches.
    Type: Grant
    Filed: March 24, 1993
    Date of Patent: April 7, 1998
    Inventors: Thierry Meynard, Henri Foch
  • Device for anchoring spinal instrumentation on a vertebra
    Patent number: 5733284
    Abstract: A device for anchoring rachidian instrumentation on a vertebra, comprising at least one support, a carrier for coupling the instrumentation to the support and a structure for anchoring the support with respect to the vertebra, the support having a convex face shaped to conform to and lie against at least one portion of the concave surface of the posterior arch of the vertebra on one side of the spinous process of the vertebral column, and the anchoring structure rigidly linking at least two distinct parts of the support to at least two correspondingly distinct portions of the vertebra.
    Type: Grant
    Filed: February 27, 1996
    Date of Patent: March 31, 1998
    Assignee: Paulette Fairant
    Inventor: Jean-Raymond Martin
  • Adjustable fairing for thrust reversers
    Patent number: 5730392
    Abstract: A fairing for aerodynamically covering the actuation mechanism of a variable area exhaust nozzle, comprising an upper and a lower longitudinally extending half-fairing member and having a generally arcuate cross-section, each of the half-fairing members having an upstream and a downstream end, and two longitudinal edges, the half-fairing members being pivotally connected to each other at a pivot point near the upstream edges and a connection along one of the longitudinal edges of each of said half-fairing members for interengaging the other of the half-fairing members and allowing the half-fairing members to rotate about the pivot point for changing the aerodynamic surface area of the fairing upon variation of the area of the exhaust nozzle.
    Type: Grant
    Filed: September 22, 1995
    Date of Patent: March 24, 1998
    Assignee: Aeronautical Concept of Exhaust, Ltd.
    Inventor: Jean-Pierre Lair
  • Thread micrometer
    Patent number: D391180
    Type: Grant
    Filed: August 27, 1996
    Date of Patent: February 24, 1998
    Inventor: Charles R. Thomas
  • Continuous perfusion tissue culture apparatus
    Patent number: D391372
    Type: Grant
    Filed: April 17, 1995
    Date of Patent: February 24, 1998
    Inventor: Joseph Scelza
  • Key decoder tool for use by locksmiths in determining the tumbler coding of locks
    Patent number: D391470
    Type: Grant
    Filed: October 8, 1996
    Date of Patent: March 3, 1998
    Inventors: Leroy W. Johnson, Deborah Johnson
  • Motorcycle harness for children
    Patent number: D391682
    Type: Grant
    Filed: April 24, 1995
    Date of Patent: March 3, 1998
    Inventor: Carol Palembas
  • Safety harness for hunters
    Patent number: D391685
    Type: Grant
    Filed: September 25, 1995
    Date of Patent: March 3, 1998
    Inventor: Brent L. Kinniburgh
  • Beach towel
    Patent number: D391797
    Type: Grant
    Filed: August 30, 1996
    Date of Patent: March 10, 1998
    Inventor: Scott Vuori
  • Emergency highway reflector
    Patent number: D391879
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: March 10, 1998
    Inventor: Cal Lawton
  • Yard game
    Patent number: D392333
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: March 17, 1998
    Inventor: William Griggle
  • Liquid filled pillow
    Patent number: D392491
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: March 24, 1998
    Inventor: Mike Tidwell
  • Pipe gun
    Patent number: D392712
    Type: Grant
    Filed: October 23, 1995
    Date of Patent: March 24, 1998
    Inventor: Joe A. Hammans
  • Child's training pants
    Patent number: D392737
    Type: Grant
    Filed: April 16, 1996
    Date of Patent: March 24, 1998
    Inventor: Johann Byer
  • Compact disc mixer
    Patent number: D392978
    Type: Grant
    Filed: August 16, 1996
    Date of Patent: March 31, 1998
    Inventor: David Lucas
  • Pivotable mail box post
    Patent number: D393532
    Type: Grant
    Filed: June 27, 1996
    Date of Patent: April 14, 1998
    Inventors: Roland L. Black, Sara J. Black
  • Combined retractable spike shoe with key
    Patent number: D393537
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: April 21, 1998
    Inventor: Timothy Johnson
  • Carrying cabinet for removable radio or CD player
    Patent number: D393540
    Type: Grant
    Filed: April 12, 1996
    Date of Patent: April 21, 1998
    Inventor: William Davila
  • Automatic headlight dimmer
    Patent number: D393728
    Type: Grant
    Filed: December 8, 1995
    Date of Patent: April 21, 1998
    Inventor: Wanda Porter
  • Lockable razor holder
    Patent number: D393973
    Type: Grant
    Filed: April 12, 1996
    Date of Patent: May 5, 1998
    Inventor: Oren Herring