Patents by Inventor Derek R. Chambers

Derek R. Chambers 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).

  • Patent number: 5474819
    Abstract: A hollow, heat-recoverable article 1, for enclosing objects such as electronic components etc. has a thermoplastic lining on its interior surface and includes a fusion bonded portion 2 in which different parts of the article have been brought together and bonded by fusion of the lining with substantially no welding of the heat-recoverable material forming the wall. The lining has a melting point that is higher than the recovery temperature of the article, thereby enabling subsequent recovery of the article without rupture of the bonded portion.
    Type: Grant
    Filed: December 7, 1990
    Date of Patent: December 12, 1995
    Assignee: Raychem Limited
    Inventors: Derek R. Chambers, Michael Carpenter
  • Patent number: 4896000
    Abstract: An arrangement for termination of a screened cable comprises:(a) a termination piece for the screen having a hollow, preferably metal, cable entry portion that can be positioned around the wire(s) of the cable, and(b) a dimensionally recoverable hollow article which can be positioned over at least part of the cable entry portion and the proximal part of the cable extending from the cable entry portion.The cable entry portion is provided with a gripping member, for example a thin annular ridge, for gripping the cable screen, placed around the entry portion. After the cable screen has been positioned over the cable entry portion and gripping member, the recoverable article is positioned over the cable and cable entry portion and is recovered to cause the gripping member to grip the cable screen.
    Type: Grant
    Filed: September 30, 1988
    Date of Patent: January 23, 1990
    Assignee: Raychem Limited
    Inventors: Brian T. Procter, Derek R. Chambers