Patents by Inventor William D. Roquemore

William D. Roquemore has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Dry pipe fire extinguishing sprinkler system
    Patent number: 4220208
    Abstract: A dry pipe fire extinguishing sprinkler apparatus including an adapter which is charged with fluid under pressure and connects an adjustable drop nipple or branch pipe having a sprinkler to a header or supply pipe. The adapter includes a valve member which excludes water from the drop nipple and sprinkler until the fluid under pressure is discharged after which such valve member opens to discharge water through the sprinkler.
    Type: Grant
    Filed: November 21, 1977
    Date of Patent: September 2, 1980
    Assignee: Hays Heating & Plumbing Company
    Inventors: Jimmy Jackson, William D. Roquemore
  • Sprinkler adjustor and escutcheon applicator tool
    Patent number: 4085633
    Abstract: A combination tool for completing sprinkler installations having pivoted clamping jaws and a wrenching tool one end of which is disposed on an elongated handle. The clamping jaws are especially adapted to engage a pivoted escutcheon plate and are operable to close the escutcheon plate in a position about a conduit or pipe while the wrench is used to engage and rotate a sprinkler drop head or similar structure and move such structure to an adjusted position.
    Type: Grant
    Filed: January 12, 1977
    Date of Patent: April 25, 1978
    Inventors: Jimmy Jackson, William D. Roquemore
  • Adjustable stem sprinkler drop
    Patent number: 4007877
    Abstract: An adjustable stem drop apparatus and method for a fire extinguishing sprinkler mounted on a pipe located above the ceiling of a building and arranged in such a manner that the position of the sprinkler can be adjusted from below the ceiling after the ceiling has been permanently installed.
    Type: Grant
    Filed: May 18, 1976
    Date of Patent: February 15, 1977
    Assignee: James C. Hays
    Inventors: Jimmy Jackson, William D. Roquemore