Patents by Inventor Lindsey D. Bredemeyer

Lindsey D. Bredemeyer 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).

  • Sealing system
    Patent number: 5772216
    Abstract: The sealing system seals a moving element in a valve. The sealing system includes an internal seal between the valve body and moving element proximate the lading and an external seal between the valve body and moving element proximate the free end of the moving element. A space for sealant is formed around the moving element between the internal and external seals. A load member is provided for pressurizing the sealant within the space to a pressure greater than the fluid pressure of the lading in the valve body cavity and the ambient pressure around the exterior of the valve. An indicator member is provided for detecting any leakage of the sealant past either the internal or external seals.
    Type: Grant
    Filed: October 9, 1996
    Date of Patent: June 30, 1998
    Assignee: Cooper Cameron Corporation
    Inventor: Lindsey D. Bredemeyer
  • Sealing system for a valve having biassed sealant under pressure
    Patent number: 5607165
    Abstract: The sealing system seals a moving element in a valve. The sealing system includes an internal seal between the valve body and moving element proximate the lading and an external seal between the valve body and moving element proximate the free end of the moving element. A space for sealant is formed around the moving element between the internal and external seals. A load member is provided for pressurizing the sealant within the space to a pressure greater than the fluid pressure of the lading in the valve body cavity and the ambient pressure around the exterior of the valve. An indicator member is provided for detecting any leakage of the sealant past either the internal or external seals.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 4, 1997
    Assignee: Cooper Cameron Corporation
    Inventor: Lindsey D. Bredemeyer