Patents by Inventor Robert D. Grahm

Robert D. Grahm 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: 4981242
    Abstract: A clothes hanger assembly includes a tubular center segment through which a deformable wire extends. The exposed ends of the wire are inserted into tubular foam rubber sleeves which are then compressed by end pieces threaded onto the wire ends. The center piece is dished at its ends to form recesses into which the foam sleeves are compressed fixing the wire to the piece by compression of the foam. Each sleeve is skinned on the outside for hoop retention.
    Type: Grant
    Filed: February 9, 1990
    Date of Patent: January 1, 1991
    Inventor: Robert D. Grahm
  • Patent number: 4672743
    Abstract: A folding tool assembly including two C-shaped handle pieces pivotally engaged to the end of the tool to fold-over onto the tool in one pivotal limit or to fold against each other at the other limit to expose the tool. The pivotal end of the tool includes a cam surface opposed by springs from each handle piece including distentions in the surface for preferred spring alignment. Additionally, the pivotal end of each piece is shaped to oppose the other unless displaced in pivotal engagement along a slot.
    Type: Grant
    Filed: September 15, 1986
    Date of Patent: June 16, 1987
    Inventor: Robert D. Grahm