Patents by Inventor Keith Vallis

Keith Vallis 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: 4500120
    Abstract: A catch or lock with a cam (3) rotatable to move one or two resilient latching arms (20) at the end of which may be latching means (25) engageable on a hasp (4) to catch or lock an article. The cam (3) or casing (1) has a follower (18) which acts in a groove (15) with a ramped bottom dividing the groove into two portions and preventing the cam from being rotated from the second back to the first portion. When the cam is in a first position (X) with the follower in the first portion the latching means are held open and are inoperative for latching. The key is then inserted to move the cam so the follower is in the second portion, the cam being movable between positions (Y) and (Z) in which the latching means open and close respectively, and the key is removable in position (Z).
    Type: Grant
    Filed: December 22, 1982
    Date of Patent: February 19, 1985
    Assignee: Kimberly-Clark Limited
    Inventors: Terence E. Ridgewell, Keith Vallis
  • Patent number: D291614
    Type: Grant
    Filed: August 12, 1985
    Date of Patent: August 25, 1987
    Assignee: Prestige Group UK PLC
    Inventors: Derek D. Roberts, Keith Vallis
  • Patent number: D299618
    Type: Grant
    Filed: April 11, 1986
    Date of Patent: January 31, 1989
    Assignee: Black & Decker Inc.
    Inventors: Nicholas A. M. Drought, Keith Vallis