Trap Patents (Class D23/268)
  • Odor trap assembly
    Patent number: 4706701
    Abstract: An odor trap assembly (10) comprising a drain hose unit (12) connected between a holding tank inlet (12) connected between a holding tank inlet (20) and a remote collection receptacle (50); and, a framework unit (11) having at least one elevated support surface (14) formed intermediate its ends; wherein the height of the said at lest one elevated support surface (14) is sufficient to create a liquid barrier (100) within the drain hose unit (12) when a portion of said drain hose unit (12) is draped over said at least one elevated (12) support surface.
    Type: Grant
    Filed: July 31, 1986
    Date of Patent: November 17, 1987
    Inventor: Robert L. Cresswell
  • Exhalation water trap and filter adapter
    Patent number: D461234
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: August 6, 2002
    Inventor: Edward G. Hanna
  • Steam trap insulator
    Patent number: D466201
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: November 26, 2002
    Inventor: Darren M. Teren
  • In-line drain trap
    Patent number: D467648
    Type: Grant
    Filed: January 23, 2002
    Date of Patent: December 24, 2002
    Inventor: O'Neil Delva
  • Trapway for a toilet
    Patent number: D470578
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: February 18, 2003
    Assignee: Acorn Engineering Company
    Inventor: Darryl Boeltl
  • Trapway for a sink
    Patent number: D470927
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: February 25, 2003
    Assignee: Acorn Engineering Company
    Inventor: David P. Molinaro
  • Trap for plumbing installations
    Patent number: D295780
    Type: Grant
    Filed: September 17, 1984
    Date of Patent: May 17, 1988
    Inventor: Richard E. Thomas
  • Water quality outlet filter
    Patent number: D499166
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: November 30, 2004
    Inventor: Lawrence W. Weidmann
  • Steam trap
    Patent number: D338708
    Type: Grant
    Filed: September 11, 1991
    Date of Patent: August 24, 1993
    Assignee: TLV Co., Ltd.
    Inventor: Tadashi Oike
  • Flexible sink trap
    Patent number: D346646
    Type: Grant
    Filed: June 14, 1991
    Date of Patent: May 3, 1994
    Inventor: Luke Doyle
  • Heat trap
    Patent number: D351899
    Type: Grant
    Filed: March 1, 1993
    Date of Patent: October 25, 1994
    Inventor: George M. Isber
  • Downspout trap
    Patent number: D354552
    Type: Grant
    Filed: January 11, 1993
    Date of Patent: January 17, 1995
    Inventor: William H. Weber
  • Container for an oil and waste line connection
    Patent number: D380814
    Type: Grant
    Filed: December 18, 1995
    Date of Patent: July 8, 1997
    Inventor: Jack G. Brewer
  • Thermal insulation for P-trap piping
    Patent number: D386569
    Type: Grant
    Filed: April 21, 1995
    Date of Patent: November 18, 1997
    Assignee: TrueBro, Inc.
    Inventors: Thomas W. Trueb, Steven R. Trueb