Patents Assigned to Encor Limited
  • Patent number: 5050464
    Abstract: A multi-surface wrench is provided which is automatically self-adjustable to capture nuts or bolts of differing sizes over a predetermined useful range. The multi-surface wrench is self-camming upon application of a torque producing or turning force and is ratchetable upon application of a ratcheting force. The multi-surface wrench includes a handle assebmly having a biasing spring disposed therein and a wrench head assembly secured to the handle assembly. The wrench head assembly includes a body member pivotally attached to the handle assembly by a first pivot pin and a hook member pivotally attached to the handle assembly by a second pivot pin. The biasing spring coacts with the hook member for automatic self-adjustment of the wrench head assembly to capture nuts of differing sizes.
    Type: Grant
    Filed: September 7, 1990
    Date of Patent: September 24, 1991
    Assignee: Encor Limited
    Inventor: Carl R. Hurtig
  • Patent number: 4333366
    Abstract: An adjustable flat wrench such as a Crescent wrench having tactile indicating surfaces adjacent the adjustment screw to denote to a user the direction of adjustment screw rotation for closing or opening of the wrench jaws.
    Type: Grant
    Filed: March 21, 1980
    Date of Patent: June 8, 1982
    Assignee: Encor Limited
    Inventor: Carl R. Hurtig
  • Patent number: 4047462
    Abstract: A toggle bolt capable without disassembly or reassembly of cutting a mounting hole through a wall and being easily installed therein. The toggle bolt includes a generally tubular sleeve having an internally threaded collar pivotally mounted at a position along the longitudinal axis of the sleeve such that the sleeve includes a heavier portion between the collar and one end and a lighter portion between the collar and the opposite end. One of the sleeve ends has cutting teeth or other cutting configuration, and a slot is provided in the wall of the sleeve along the lighter portion thereof. A bolt is threaded into the collar and is disposable transversely of the sleeve during drilling of a mounting hole and is disposable via the slot coaxially of the sleeve for insertion of the sleeve through the mounting hole for anchoring therein.
    Type: Grant
    Filed: March 29, 1976
    Date of Patent: September 13, 1977
    Assignee: Encor Limited
    Inventor: Carl R. Hurtig