Patents by Inventor Grant Canfield

Grant Canfield 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: 5692255
    Abstract: An apparatus for elevating the foot of a bed comprises an elevating system comprising a hinged support board and a lifting device, the hinged support board being formed in a generally rectangular configuration, the support board having hingedly coupled upper and lower regions, the support board being positioned beneath the mattress of a bed; the lifting device comprising a base, a vertical support and board and blanket pulleys, the vertical support being coupled to the base, the pulleys being coupled to the vertical support; board and blanket pulleys each including a pulley spool, a cord and a handle, the cord of the board pulley having an upper end wound around the pulley spool and a lower end coupled to the lower region of the board, the cord of the blanket pulley having an upper end wound around the pulley spool and a lower end including blanket coupling devices, in an operative orientation a user turning each of the handles thereby raising a blanket and the board to a desired elevation, securing devices e
    Type: Grant
    Filed: January 13, 1997
    Date of Patent: December 2, 1997
    Inventor: Grant Canfield