Patents by Inventor Charles J. Spofford

Charles J. Spofford 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: 8813437
    Abstract: The integral shim-pack (50) includes a wedge-shaped male shim (52) having a pull tang (68) extending from a thin end (56) of the male shim (52) and into a tang groove (82) and through a tang passage (90) between a bridge (88) and a tang groove (82) of a wedge-shaped female shim (72) to extend beyond a thick end (74) of the female shim (72). Pulling the adjustment pull tang (68) away from the thick end (74) of the female shim (72) moves a thick end (54) of the male shim (52) toward the thick end (74) of the female shim (72) to increase a distance between a base surface (58) of the male shim and a base surface (78) of the female shim (72).
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: August 26, 2014
    Inventor: Charles J. Spofford
  • Patent number: 4592402
    Abstract: Adjustable modules are disclosed for building final products of various sizes from a single-sized, mass-produced unit. In the preferred embodiment, each module is made of mass-produced, left-hand and right-hand sections that are joinable at oppositely facing, abuttable ends by any suitable means--here, dowels that fit into aligned channel halves in the complemental faces of the two sections.By utilizing the split-section aspect, the overall size of the final product, e.g., a door, can be reduced without detracting from the functional, and sometimes even ornamental, aspects of the modules. This is achieved by trimming back the modular sections along their complemental faces prior to joining the faces together.
    Type: Grant
    Filed: October 24, 1983
    Date of Patent: June 3, 1986
    Inventor: Charles J. Spofford