Patents by Inventor Paul H. Snowden

Paul H. Snowden 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).

  • Hammer union and seal therefor
    Patent number: 6764109
    Abstract: A hammer union comprises a thread end, a nut end and a hammer nut which, when cinched up, compresses a composite seal assembly thereby preventing leakage. The seal assembly comprises a metal insert of a size to pass into the seal groove of conventional hammer unions and a small seal acting between the insert, the thread end and the nut end. The small seal is conveniently an O-ring and is of a size that is compressed when the seal assembly is inserted into the thread end of the hammer union, thereby preventing the seal assembly from falling out of the threaded end when it is inverted.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: July 20, 2004
    Inventors: H. Gary Richardson, Paul H. Snowden
  • Hammer union, seal therefor and method
    Publication number: 20040021319
    Abstract: A hammer union comprises a thread end, a nut end and a hammer nut which, when cinched up, compresses a composite seal assembly thereby preventing leakage. The seal assembly comprises a metal insert of a size to pass into the seal groove of conventional hammer unions and a small seal acting between the insert, the thread end and the nut end. The small seal is conveniently an O-ring and is of a size that is compressed when the seal assembly is inserted into the thread end of the hammer union, thereby preventing the seal assembly from falling out of the threaded end when it is inverted.
    Type: Application
    Filed: July 31, 2002
    Publication date: February 5, 2004
    Inventors: H. Gary Richardson, Paul H. Snowden