Patents by Inventor John P. Emmitte, Jr.

John P. Emmitte, Jr. 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).

  • Method and apparatus for pressure testing valves
    Patent number: 5880358
    Abstract: A method and apparatus for pressure testing valves utilizes a seal plate having a mounting plate disposed on one of its ends and a sealing surface on its other end, and a mounting plate cradle is provided for releaseably securing the mounting plate to a cradle support plate, whereby the seal plate may be readily installed within a valve testing machine without the necessity of screwing or bolting the seal plate within the valve testing machine.
    Type: Grant
    Filed: June 6, 1996
    Date of Patent: March 9, 1999
    Inventor: John P. Emmitte, Jr.
  • Apparatus and method for pressure testing a body having a chamber therein
    Patent number: 5576479
    Abstract: An apparatus and method for pressure testing a body having a chamber by utilizing differential pressures to create a seal, whereby the body can be pressure tested without undesired forces being exerted upon the body.
    Type: Grant
    Filed: March 30, 1995
    Date of Patent: November 19, 1996
    Inventor: John P. Emmitte, Jr.
  • Method for pressure testing valves
    Patent number: 5528926
    Abstract: A method and apparatus for pressure testing valves utilizes a seal plate having a mounting plate disposed on one of its ends and a sealing surface on its other end, and a mounting plate cradle is provided for releaseably securing the mounting plate to a cradle support plate, whereby the seal plate may be readily installed within a valve testing machine without the necessity of screwing or bolting the seal plate within the valve testing machine.
    Type: Grant
    Filed: January 5, 1994
    Date of Patent: June 25, 1996
    Inventor: John P. Emmitte, Jr.
  • Hydraulic flange seal clamp
    Patent number: 4813456
    Abstract: A hydraulic flange seal clamp for sealing a flanged valve opening, to permit hydrostatic pressure testing of the valve, includes a pivotable connection structure between a seal member which overlies and seals the flanged opening, and a moveable piston which causes the seal member to assume the desired sealing relationship with the flanged valve opening.
    Type: Grant
    Filed: December 15, 1987
    Date of Patent: March 21, 1989
    Inventor: John P. Emmitte, Jr.