Patents by Inventor David Vatcher

David Vatcher 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: 5415713
    Abstract: A method of sealing a connector (2) in an electrical cable (1) for example a submarine cable comprises:(i) applying a quantity of gel (6) onto the connector and encapsulate at least part of it;(ii) positioning an inner hollow dimensionally recoverable article (9), for example in the form of a cap, about the connector and gel and recovering it thereon to enclose the gel and at least part of the connector, the recovery causing part (12) of the gel to exude out of the open end of the article; and(iii) positioning an outer hollow open-ended dimensionally recoverable article (13) over the connector (2) and recovering it so that it encloses at least the end of the inner article (9) and the part (12) of the gel (6) that has exuded therefrom.This method can enable an effective seal against moisture ingress to be made while at the same time being relatively easy to remove for re-entry without damaging the connector.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: May 16, 1995
    Assignee: Raychem Limited
    Inventor: David Vatcher
  • Patent number: 5226837
    Abstract: A cable connection is environmentally protected using an assembly which comprises a polymeric sleeve positioned over the coupling nut of the connector and a segment of the cable adjacent the connector, the polymeric sleeve being secured to said coupling nut so as to prevent motion between the sleeve and the nut and a layer of encapsulant positioned between at least a portion of the polymeric sleeve and the underlying cable, the encapsulant providing a circumferential environmental seal between the cable and the sleeve while permitting rotational motion between the cable and the sleeve. A further layer of encapsulant preferable extends from the coupling nut over the hardware mounting the connector receptacle into a bulkhead. This further layer of encapsulant is preferable contained in a cap to which a force is applied by a flange provided in the polymeric sleeve. The encapsulant is preferable a silicone gel.
    Type: Grant
    Filed: October 29, 1992
    Date of Patent: July 13, 1993
    Assignee: Raychem Corporation
    Inventors: Walter Cinibulk, Peter Godfrey, David Vatcher