Patents by Inventor Larry Workman

Larry Workman 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).

  • Thrust plug and method for using a thrust plug
    Patent number: 6758244
    Abstract: A thrust plug that performs the functions of both (i) reversibly capping an end of a length of pipe, a fitting, or the like and (ii) providing a surface against which a concrete thrust block can be cast, thereby facilitating thrust blocking. The thrust plug of the present invention comprises a plug affixed to a base for engagement with a thrust block and against which a concrete thrust block can be directly cast.
    Type: Grant
    Filed: August 6, 2002
    Date of Patent: July 6, 2004
    Assignee: Lasco Fittings, Inc.
    Inventors: Larry Workman, Donald J. Klein
  • Stabilizer elbow lock
    Patent number: 6709020
    Abstract: A stabilizer elbow lock that prevents a seal between a stabilizer elbow and a coupler valve from being broken by engaging at least a portion of the stabilizer elbow and by engaging at least a portion of the coupler valve. In an alternative embodiment, one or more adapters are provided that interface between the lock and the coupler valve and/or interface between the lock and the elbow.
    Type: Grant
    Filed: January 9, 2002
    Date of Patent: March 23, 2004
    Assignee: Lasco Fittings, Inc.
    Inventors: Larry Workman, David Allen McAllister
  • Thrust plug and method for using a thrust plug
    Publication number: 20040035483
    Abstract: A thrust plug that performs the functions of both (i) reversibly capping an end of a length of pipe, a fitting, or the like and (ii) providing a surface against which a concrete thrust block can be cast, thereby facilitating thrust blocking. The thrust plug of the present invention comprises a plug affixed to a base for engagement with a thrust block and against which a concrete thrust block can be directly cast.
    Type: Application
    Filed: August 6, 2002
    Publication date: February 26, 2004
    Inventors: Larry Workman, Donald J. Klein
  • Stabilizer elbow lock
    Publication number: 20030127849
    Abstract: A stabilizer elbow lock that prevents a seal between a stabilizer elbow and a coupler valve from being broken by engaging at least a portion of the stabilizer elbow and by engaging at least a portion of the coupler valve. In an alternative embodiment, one or more adapters are provided that interface between the lock and the coupler valve and/or interface between the lock and the elbow.
    Type: Application
    Filed: January 9, 2002
    Publication date: July 10, 2003
    Inventors: Larry Workman, David A. McAllister