Patents by Inventor Stephen Cawthorne

Stephen Cawthorne 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).

  • Anchor for cables
    Patent number: 6065738
    Abstract: A cable safety barrier has means for disengagement of the cable from an anchor portion of the cable safety barrier when certain vehicle impact conditions are met. Disengaging of the cable may involve allowing a cable end fitting to escape from an open ended slot, when the cable is deflected upwards, or causing the cable fitting to fail.
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: May 23, 2000
    Assignee: Brifen Limited
    Inventors: Philip Pearce, Timothy John Heldt, Stephen Cawthorne
  • Method of clamping sheathed rod, strand, or rope
    Patent number: 4095328
    Abstract: This specification describes a clamp comprising a ductile elongate clamp body having a longitudinal channel which receives a hard tubular element divided longitudinally into at least two separable parts held together by retaining means. The clamp is applied to a plastics-sheathed rope by removing the sheathing over a length greater than that of the tubular element but less than that of the body, positioning and retaining the parts of the tubular member about the unsheathed length, inserting the tubular element into the channel in the body, and compacting the ductile clamp body.
    Type: Grant
    Filed: February 25, 1977
    Date of Patent: June 20, 1978
    Assignee: Bridon Limited
    Inventor: Stephen Cawthorne
  • Clamp for sheathed rod, strand or rope
    Patent number: 4065221
    Abstract: This specification describes a clamp comprising a ductile elongate clamp body having a longitudinal channel which receives a hard tubular element divided longitudinally into at least two separable parts held together by retaining means. The clamp is applied to a plastics-sheathed rope by removing the sheathing over a length greater than that of the tubular element but less than that of the body, positioning and retaining the parts of the tubular member about the unsheathed length, inserting the tubular element into the channel in the body, and compacting the ductile clamp body.
    Type: Grant
    Filed: December 3, 1975
    Date of Patent: December 27, 1977
    Assignee: Bridon Limited
    Inventor: Stephen Cawthorne