Patents by Inventor Laurence S. Smith, Jr.

Laurence S. Smith, 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).

  • Pipe repair clamp
    Patent number: 6305719
    Abstract: A clamp for repairing a damaged pipe member. Shell members are matingly engaged around the damaged pipe member. Segmented inserts are received in a complementary annular channel formed in an inside face of the shell members to form a ring assembly supporting annular seals between the ring assembly and the damaged pipe member. A shell-sealing annular channel is formed between the ring assembly and the shell members to receive a liquid sealant to form an annular seal between the ring assembly and the shell members. A longitudinal channel is formed in longitudinal faces of the shell member to form longitudinal seals in the shell assembly when a ring assembly is disposed at either end of the shell members. The ring assemblies support seals against the damaged pipe member, including a pipe-sealing annular channel formed between each ring and the damaged pipe member between inner and outer annular seals for receiving a liquid sealant.
    Type: Grant
    Filed: January 25, 1999
    Date of Patent: October 23, 2001
    Inventors: Laurence S. Smith, Jr., Burl William Dowden