Patents by Inventor Calvin W. Perry

Calvin W. Perry 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: 5230480
    Abstract: A flexible member winding in and pay-out device. This device is commonly used with extension cords, dog leashes, towing cables and the like. There is provided a drum to receive a flexible member. A drum flange is attached to the drum for supporting the drum either on or off its base whereon the drum and flange are mounted. A cover means is rotatably mounted on and adjacently encircling an outer circumference of the drum and can form with the drum flange an endwise confinement for the flexible member wound on the drum. A hollow crank handle is pivotably attached to the cover means to internally guide the flexible member to or from the drum as relative rotation takes place therebetween.
    Type: Grant
    Filed: February 3, 1992
    Date of Patent: July 27, 1993
    Inventor: Calvin W. Perry