Patents by Inventor Calvin B. Mays

Calvin B. Mays 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: 4304336
    Abstract: The preferred embodiment discloses a rack for transporting heavy plate glass, said rack being designed to be removably mounted on any General Motors, Chrysler or Ford pickup truck. The rack is composed of two upstanding rows of A-frames, one positioned over each side panel of the bed of a pickup truck. Each row of upstanding A-frames is a rigidly connected integral unit. Horizontal support members, typically formed of square tubing, are permanently affixed to the base and apex of the A-frame. When assembled, each row of A-frames is positioned over the side panel of a pickup truck and stabilized in an upright fashion by stakes which plug into receptacles provided in the side panel of a pickup truck. In addition to the stakes, an adjustable horizontal jack is extended from the base of the A-frame to the interior wall of the side panel of a pickup truck to provide additional support.
    Type: Grant
    Filed: February 28, 1980
    Date of Patent: December 8, 1981
    Inventor: Calvin B. Mays