Patents Represented by Attorney, Agent or Law Firm Lloyd D. Doigan
  • Automatic valve for the stabilization of a thermostatic mixing device
    Patent number: 6823892
    Abstract: A valve installed at the inlet of a thermostatic mixing device for automatically stabilizing the operation of the thermostatic device by maintaining the pressure within the thermostatic mixing device close to the water supply pressure, thereby making the thermostatic device response to small pressure changes while maintaining the fluid flow through the device. The valve comprises a tubular body inserted within the water supply line, a holding seat within the tubular body, a cursor that moves within the valve body with respect to the seat, the cursor moving between a first position where the seat is partially occluded and a second position where the seat is substantially clear. The cursor is subjected to the pressure existing inside the thermostatic mixing device, and a spring positioned with the valve body that acts upon the cursor to urge the cursor towards the first cursor position.
    Type: Grant
    Filed: March 21, 2002
    Date of Patent: November 30, 2004
    Assignee: Masco Corporation of Indiana
    Inventor: Alfons Knapp
  • Christmas tree carabiner
    Patent number: D513698
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: January 24, 2006
    Assignee: The Faucet-Queens, Inc.
    Inventors: Michael Murphy, Joseph P. Blaz
  • Shower wallbar
    Patent number: D516189
    Type: Grant
    Filed: July 12, 2004
    Date of Patent: February 28, 2006
    Assignee: Hansgrohe AG
    Inventor: Klaus Grohe
  • Faucet spout
    Patent number: D544946
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: June 19, 2007
    Assignee: Masco Corporation of Indiana
    Inventors: Judd A. Lord, Steffen Koury
  • Towel ring
    Patent number: D497754
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: November 2, 2004
    Assignee: Masco Corporation of Indiana
    Inventors: Michael Graves, Donald Strum, William Harrington, Scott Doty
  • Toilet lever
    Patent number: D497982
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: November 2, 2004
    Assignee: Masco Corporation of Indiana
    Inventors: Michael Graves, Donald Strum, William Harrington, Scott Doty
  • Spacesaver cabinet
    Patent number: D498086
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: November 9, 2004
    Assignee: Zenith Products Corp.
    Inventor: Jeffrey Harwanko
  • Wine cabinet
    Patent number: D498368
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: November 16, 2004
    Assignee: Zenith Products Corp.
    Inventor: Jeffrey Harwanko
  • Double towel bar arm
    Patent number: D498381
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: November 16, 2004
    Assignee: Masco Corporation of Indiana
    Inventors: Michael Graves, Donald Strum, William Harrington, Scott Doty
  • Wall-mounted hook
    Patent number: D498630
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: November 23, 2004
    Assignee: Zenith Products Corp.
    Inventor: Jose Suero, Jr.
  • Canopy for shower enclosure
    Patent number: D498829
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: November 23, 2004
    Assignee: American Shower & Bath Corp.
    Inventors: Eugene A. Helmetsie, Harper F. Zarker, Jr., Tomasz Pracel
  • Bath accessory post
    Patent number: D498957
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: November 30, 2004
    Assignee: Bath Unlimited, Inc.
    Inventor: Kenneth Roger Benson
  • Soap dish
    Patent number: D498959
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: November 30, 2004
    Assignee: Zenith Products Corp.
    Inventor: Jose Suero, Jr.
  • Door rack
    Patent number: D499286
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: December 7, 2004
    Assignee: Zenith Products Corp.
    Inventor: Jeffrey Harwanko
  • Basket shelf
    Patent number: D499296
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: December 7, 2004
    Assignee: Zenith Products Corp.
    Inventor: Jose Suero, Jr.
  • Wall hook
    Patent number: D499329
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: December 7, 2004
    Assignee: Zenith Products Corp.
    Inventor: Jose Suero, Jr.
  • Cabinet with dispenser
    Patent number: D499796
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: December 14, 2004
    Assignee: Zenith Products Corp.
    Inventor: David L. Walker
  • Cross handle
    Patent number: D500124
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: December 21, 2004
    Assignee: Masco Corporation of Indiana
    Inventors: Michael Graves, Donald Strum, William Harrington, Scott Doty
  • Utility cabinet
    Patent number: D500215
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: December 28, 2004
    Assignee: Zenith Products Corp.
    Inventor: Paul Winter
  • Wire shelf
    Patent number: D500225
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: December 28, 2004
    Assignee: Zenith Products Corp.
    Inventor: Jose Suero, Jr.