Patents by Inventor Alec Carruthers

Alec Carruthers 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).

  • Sliding plate valve
    Patent number: 6354568
    Abstract: A plate valve which includes two sliding plates and which carries seal portions with an elongated slot. A valve body of the plate valve includes a second elongated slot with further seal portions extending from a valve aperture. A cable of different diameters can be accommodated and sealed by the cooperating resilient seal portions.
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: March 12, 2002
    Assignees: BG PLC, BG Intellectual Property Limited
    Inventor: Alec Carruthers