Patents Represented by Attorney Diane F. Liebman

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  • 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
  • Cover for pie crust edge
    Patent number: D384550
    Type: Grant
    Filed: June 6, 1996
    Date of Patent: October 7, 1997
    Inventor: Margo Dernoga
  • Snowman decorating kit
    Patent number: D384595
    Type: Grant
    Filed: March 5, 1996
    Date of Patent: October 7, 1997
    Inventor: Casie Lee Hartwell-Ruland
  • Adjustable pillow
    Patent number: D384852
    Type: Grant
    Filed: September 5, 1996
    Date of Patent: October 14, 1997
    Inventors: Abe Koshaba, Helen Adams
  • Snow mold
    Patent number: D384960
    Type: Grant
    Filed: July 2, 1996
    Date of Patent: October 14, 1997
    Inventor: Bradley A. Kistler
  • Tree climbing implement
    Patent number: D385045
    Type: Grant
    Filed: August 30, 1996
    Date of Patent: October 14, 1997
    Inventor: Daniel C. Vanselous
  • Tool box cart
    Patent number: D385077
    Type: Grant
    Filed: May 10, 1996
    Date of Patent: October 14, 1997
    Inventor: Dan Hendrich
  • Illuminated mailbox
    Patent number: D385677
    Type: Grant
    Filed: October 30, 1995
    Date of Patent: October 28, 1997
    Inventor: Thomas A. Vivirito, Jr.
  • Septic tank cover
    Patent number: D385944
    Type: Grant
    Filed: August 21, 1996
    Date of Patent: November 4, 1997
    Inventor: J. Paul Hatfield
  • Fishing lure attachment
    Patent number: D386556
    Type: Grant
    Filed: July 18, 1995
    Date of Patent: November 18, 1997
    Inventor: Kathy Magers
  • Lawnmower washing device
    Patent number: D386844
    Type: Grant
    Filed: May 24, 1996
    Date of Patent: November 25, 1997
    Inventor: Louis A. Borysewicz
  • Terrarium kit with water pond dish
    Patent number: D387004
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: December 2, 1997
    Inventor: Joseph R. McSparin
  • Purse illuminator
    Patent number: D387453
    Type: Grant
    Filed: March 8, 1996
    Date of Patent: December 9, 1997
    Inventor: Diana L. Protzek
  • Take up reel for venetian blind cords
    Patent number: D387972
    Type: Grant
    Filed: August 4, 1995
    Date of Patent: December 23, 1997
    Inventor: Santo Hernandez
  • Life jacket with inflatable marker
    Patent number: D388493
    Type: Grant
    Filed: December 8, 1995
    Date of Patent: December 30, 1997
    Inventor: David L. Summers
  • Automatic headlight dimmer
    Patent number: D393728
    Type: Grant
    Filed: December 8, 1995
    Date of Patent: April 21, 1998
    Inventor: Wanda Porter
  • Body worn storage pouch
    Patent number: D397548
    Type: Grant
    Filed: October 16, 1995
    Date of Patent: September 1, 1998
    Inventor: Lawrence Peck
  • Light bar
    Patent number: D400675
    Type: Grant
    Filed: May 28, 1996
    Date of Patent: November 3, 1998
    Inventor: Sean J. Sopko
  • Adjustable cutoff saw guide
    Patent number: D402214
    Type: Grant
    Filed: June 4, 1996
    Date of Patent: December 8, 1998
    Inventor: Michael E. Logwood
  • Braking force indicator
    Patent number: D415849
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: October 26, 1999
    Inventor: Jeffrey Goldberg