Patents by Inventor Robert G. Truesdale, Jr.

Robert G. Truesdale, 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).

  • Cable seal
    Patent number: 5557073
    Abstract: A re-enterable seal (25) for sealing an elongate object (16) passing through a barrier (24) between two environments (53, 54) includes an invertible enclosing member (30) containing a sealant (40). The sealant (40) is adhered to the inside surface (31) of the enclosing member (30). During insertion of the elongate member (16), the enclosing member (30) is inverted inside-out, with the sealant remaining on the inside surface (31) (now positioned outside the enclosing member). The elongate member (16) is then pulled back, causing the enclosing member (30) to re-invert, and bringing the sealant (40) into sealing compression against the elongate member (16).
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: September 17, 1996
    Assignee: Raychem Corporation
    Inventors: Robert G. Truesdale, Jr., John E. Francis
  • Cable seal
    Patent number: 5360945
    Abstract: A re-enterable seal (25) for sealing an elongate object (16) passing through a barrier (24) between two environments (53, 54) includes an invertible enclosing member (30) containing a sealant (40). The sealant (40) is adhered to the inside surface (31) of the enclosing member (30). During insertion of the elongate member (16), the enclosing member (30) is inverted inside-out, with the sealant remaining on the inside surface (31) (now positioned outside the enclosing member). The elongate member (16) is then pulled back, causing the enclosing member (30) to re-invert, and bringing the sealant (40) into sealing compression against the elongate member (16).
    Type: Grant
    Filed: May 1, 1991
    Date of Patent: November 1, 1994
    Assignee: Raychem Corporation
    Inventors: Robert G. Truesdale, Jr., John E. Francis