Patents by Inventor Melvin Crandall

Melvin Crandall 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).

  • Umbrella reversal prevention structure
    Patent number: 4407317
    Abstract: An umbrella reversal prevention structure including a plurality of flexible guys having outer ends connected one each to different ones of the resilient ribs of the umbrella. The inner ends of the guys are connected to the shaft of the umbrella adjacent its outer end. The guys are provided with adjusting structure for adjusting the length thereof to provide a preselected tension in each guy for effectively preventing undesirable displacement of the resilient rib outer ends outwardly from the normal disposition thereof in the open bowed configuration of the umbrella, thereby to prevent reversal of the umbrella structure as from a high wind force directed outwardly thereagainst.
    Type: Grant
    Filed: March 16, 1981
    Date of Patent: October 4, 1983
    Inventor: Melvin Crandall
  • Racquet sports shorts
    Patent number: D283077
    Type: Grant
    Filed: November 17, 1983
    Date of Patent: March 25, 1986
    Inventor: Melvin Crandall