Patents by Inventor Joel K. Harper

Joel K. Harper 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).

  • Removable covers for waterbed rails
    Patent number: 5331696
    Abstract: A cover for removably attaching to paddled waterbed rails. Specifically, a cover having a variety of devices for joining a series of paired straps attached along opposite edges of the cover to secure the cover to the waterbed rail.
    Type: Grant
    Filed: January 13, 1993
    Date of Patent: July 26, 1994
    Inventors: Mark A. Armstrong, Joel K. Harper
  • Removable covers for waterbed rails
    Patent number: 5163197
    Abstract: The invention of the present application relates to waterbeds (10). Waterbeds (10) usually have side rails (21) and often have a foot board (20) and/or head board (22). Together these form an enclosure (16) for containing the water-filled mattress (25). Padded rails (21) above the top edge (24) of the frame (16) prevent the hard wood edge from discomforting the occupants. Applicants provide a fabric cover (32) that slips over the padded rails (21) before they are installed. The fabric cover (32) has elastic bands (36) that hold the cover (32) snug to the padded rail (21) and which bands (36) jam between the top edge (24) of the frame (16) and the inside surface of the padded rail (21) when the padded rails (21) are installed.
    Type: Grant
    Filed: April 23, 1992
    Date of Patent: November 17, 1992
    Inventors: Mark A. Armstrong, Joel K. Harper