Patents by Inventor Allan S. Wilker

Allan S. Wilker 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: 5137012
    Abstract: A pellet burning stove includes a firebox defining a combustion chamber, a pellet burner located within the firebox, a feed system for moving combustible pellets to the pellet burner and an ash pan for receiving ashes from the pellet burner. The pellet burner includes a horizontal surface having an elongated combustion zone defined by a plurality of primary air openings in the burner surface, and a feed surface adjacent to the combustion zone. The feed system moves a thin layer of combustible pellets across the feed surface into the combustion zone. An air plenum surrounding the feed surface of the pellet burner supplies combustion air upwardly through the primary air opening and the layer of combustible pellets. The air plenum maintains the pellets relatively cool until they reach the combustion zone. Ashes drop off an edge of the burner surface into an ash pan. An artificial log set and a log support member fabricated of refractory fiber material define a secondary combustion cavity above the pellet burner.
    Type: Grant
    Filed: April 5, 1991
    Date of Patent: August 11, 1992
    Assignee: Vermont Castings, Inc.
    Inventors: William W. Crossman, Jr., Derik K. Andors, Richard S. Blackburn, Allan S. Wilker, John H. Guest
  • Patent number: 4817584
    Abstract: A freestanding wood, gas log or coal burning stove includes a pair of hinged glass or screen doors which are movable to storage compartments within the stove where they are completely concealed from view. In one embodiment, side panels are hinged to the stove frame assembly, and each door is hinged to one of the side panels in such a way that the door can be folded into a storage compartment between the stove frame assembly and the side panel. In another embodiment, fixed side panels define storage compartments between the side panel and the stove frame assembly, and each door slides into one of the storage compartments, In both embodiments, the storage compartment can include openings for circulation and heating of room air.
    Type: Grant
    Filed: March 13, 1987
    Date of Patent: April 4, 1989
    Assignee: Vermont Castings, Inc.
    Inventor: Allan S. Wilker
  • Patent number: D308246
    Type: Grant
    Filed: March 23, 1988
    Date of Patent: May 29, 1990
    Assignee: Vermont Castings, Inc.
    Inventors: Duncan C. Syme, Vance R. Smith, Allan S. Wilker
  • Patent number: D327734
    Type: Grant
    Filed: April 5, 1991
    Date of Patent: July 7, 1992
    Assignee: Vermont Castings, Inc.
    Inventors: Vance R. Smith, Allan S. Wilker, Richard S. Blackburn
  • Patent number: D371835
    Type: Grant
    Filed: March 23, 1995
    Date of Patent: July 16, 1996
    Assignee: Vermont Castings, Inc.
    Inventors: Jay F. Kempf, Allan S. Wilker, Vance R. Smith
  • Patent number: D382337
    Type: Grant
    Filed: April 3, 1996
    Date of Patent: August 12, 1997
    Assignee: Vermont Castings, Inc.
    Inventors: Vance R. Smith, Allan S. Wilker, Stephen F. Richardson
  • Patent number: D408072
    Type: Grant
    Filed: April 3, 1996
    Date of Patent: April 13, 1999
    Inventors: Vance R. Smith, Allan S. Wilker, Stephen F. Richardson