Patents Assigned to General Plug & Manufacturing Company
  • Drain plug
    Patent number: 8186921
    Abstract: Disclosed is a drain plug for an enclosure that contains a female-threaded opening. The drain plug contains a male-threaded portion and a head portion. The head portion contains a drive structure, an annular groove of substantially rectangular cross section, and a washer of substantially rectangular cross section in the groove. An outer wall of the annular groove is positioned to contact the enclosure when secured to the female-threaded opening.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: May 29, 2012
    Assignee: General Plug & Manufacturing Company
    Inventor: John David Lowman
  • DRAIN PLUG
    Publication number: 20080135335
    Abstract: Disclosed is a drain plug for an enclosure that contains a female-threaded opening. The drain plug contains a male-threaded portion and a head portion. The head portion contains a drive structure, an annular groove of substantially rectangular cross section, and a washer of substantially rectangular cross section in the groove. An outer wall of the annular groove is positioned to contact the enclosure when secured to the female-threaded opening.
    Type: Application
    Filed: December 8, 2006
    Publication date: June 12, 2008
    Applicant: GENERAL PLUG & MANUFACTURING COMPANY
    Inventor: John David Lowman