Patents Assigned to J. W. Winco, Inc.
  • Patent number: 5513544
    Abstract: A retractable, locking mechanism for use with a crank handle wherein the mechanism allows the handle to be rotated from an extended position to a retracted position is comprised of a male swivel and a female swivel, a pin for joining the male and female swivels and a spring for urging the male swivel to seat with the female swivel. The pin is fixed between flanges extending from the female swivel. The male swivel extends between the flanges and rotates about the pin which extends through a cavity defined within the male swivel. When the male swivel is in an "extended" position, the male swivel is engaged with the female swivel such that their axes are aligned and an axially extending shaft on the male swivel seats in an axially extending bore in the female swivel. The spring rides in the cavity of the male swivel and is biased against the pin such that the spring urges the shaft of the male swivel into the bore of the female swivel.
    Type: Grant
    Filed: July 7, 1994
    Date of Patent: May 7, 1996
    Assignee: J. W. Winco, Inc.
    Inventors: John Winkler, John M. Winkler