Patents by Inventor Donald H. Wiseman

Donald H. Wiseman 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: 8673072
    Abstract: An apparatus and method of manufacturing a crystal grower is disclosed. The crystal growing apparatus includes a receptacle constructed to receive a material selected to grow a crystal and an induction heater constructed to heat the material, with the induction heater comprising a Litz coil and a hose constructed to receive the Litz coil therein. The hose further comprises an inner liner formed of an electrically non-conductive material, a reinforcement layer surrounding the inner liner to provide structural reinforcement thereto, and an outer liner applied about the reinforcement layer to form an exterior of the hose.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: March 18, 2014
    Assignee: ABP Induction, LLC
    Inventor: Donald H. Wiseman
  • Publication number: 20100089312
    Abstract: An apparatus and method of manufacturing a crystal grower is disclosed. The crystal growing apparatus includes a receptacle constructed to receive a material selected to grow a crystal and an induction heater constructed to heat the material, with the induction heater comprising a Litz coil and a hose constructed to receive the Litz coil therein. The hose further comprises an inner liner formed of an electrically non-conductive material, a reinforcement layer surrounding the inner liner to provide structural reinforcement thereto, and an outer liner applied about the reinforcement layer to form an exterior of the hose.
    Type: Application
    Filed: December 14, 2009
    Publication date: April 15, 2010
    Inventor: Donald H. Wiseman
  • Patent number: 7632350
    Abstract: An apparatus and method of manufacturing a crystal grower is disclosed. The crystal grower includes a reservoir constructed to receive a crystal growing material therein. An induction heater having a coil of woven strands of wire is disposed proximate the reservoir and heats the crystal growing material.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: December 15, 2009
    Assignee: ABP Induction, LLC
    Inventor: Donald H. Wiseman
  • Patent number: 6620374
    Abstract: A system and method for inductively heating and then quench hardening a portion of a workpiece, such as a several threads of a screw or bolt are disclosed. The system includes a conveyor system having a rotary conveyor for separating, aligning, and transporting each of the workpieces in aligned succession through an induction heater positioned about the rotary conveyor to heat-treat at least a portion of each of the workpieces. A sensor determines whether a workpiece is heat-treated to a minimum temperature and causes an ejector to separate heat-treated workpieces that have reached the minimum temperature from heat-treated workpieces that have failed to reach the minimum temperature. The separated workpieces are then quenched in a tank & separately removed automatically.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: September 16, 2003
    Assignee: Pillar Industries
    Inventors: Dean P. Stefanac, Thomas J. Bowers, Donald H. Wiseman, William C. Weller
  • Publication number: 20020179203
    Abstract: A system and method for inductively heating and then quench hardening a portion of a workpiece, such as a several threads of a screw or bolt are disclosed. The system includes a conveyor system having a rotary conveyor for separating, aligning, and transporting each of the workpieces in aligned succession through an induction heater positioned about the rotary conveyor to heat-treat at least a portion of each of the workpieces. A sensor determines whether a workpiece is heat-treated to a minimum temperature and causes an ejector to separate heat-treated workpieces that have reached the minimum temperature from heat-treated workpieces that have failed to reach the minimum temperature. The separated workpieces are then quenched in a tank & separately removed automatically.
    Type: Application
    Filed: May 31, 2001
    Publication date: December 5, 2002
    Inventors: Dean P. Stefanac, Thomas J. Bowers, Donald H. Wiseman, William C. Weller
  • Patent number: 6043471
    Abstract: A system and method for inductively heating a workpiece includes a controller and a plurality of power supplies that receive and send signals to the controller. Induction heads receive power from the power supplies. The induction heads may be aligned with adjacent segments of the workpiece, and can span the perimeter of the workpiece. The gap between adjacent induction heads is less than one half the size of the adjacent induction heads, and preferably the induction heads abut or substantially abut. Each of the power supplies include feedback for controlling the power delivered to the segments of the workpiece. In alternative embodiments the feedback may be based on the current or power provided to the induction heads, or the power provided to the workpiece.
    Type: Grant
    Filed: November 9, 1998
    Date of Patent: March 28, 2000
    Assignee: Illinois Tool Works Inc.
    Inventors: Donald H. Wiseman, Steven J. Geissler
  • Patent number: 4339020
    Abstract: A ladder support which is attached to the top portion of ladder rails, the support having a large bearing surface which is covered with soft fabric and being adapted to fit ladders of various sizes and made of various materials.
    Type: Grant
    Filed: October 23, 1980
    Date of Patent: July 13, 1982
    Inventor: Donald H. Wiseman