Patents by Inventor Mark A Vackar

Mark A Vackar 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).

  • High efficiency furnace method and apparatus
    Patent number: 5437263
    Abstract: An upflow/downflow high efficiency furnace includes a means for mounting a secondary heat exchanger by use of a hinge member, which permits the furnace to be installed in either an upflow or downflow mode of operation, without any modification to the furnace as manufactured.
    Type: Grant
    Filed: August 27, 1993
    Date of Patent: August 1, 1995
    Assignee: Goodman Manufacturing Company
    Inventors: Jeffrey R. Ellingham, Gary W. Bonorden, Mark A. Vackar
  • Outer surface of an electronic enclosure
    Patent number: D396699
    Type: Grant
    Filed: August 25, 1997
    Date of Patent: August 4, 1998
    Assignee: Toshiba International Corporation
    Inventor: Mark A. Vackar