Patents by Inventor Len Fisher

Len Fisher 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).

  • Burner with air flow adjustment
    Patent number: 6382959
    Abstract: A burner includes a motor driven blower, an air tube having an inlet end portion and an outlet end portion, a housing forming an air flow path between the blower and the air tube, a nozzle for spraying liquid fuel or orifice for dispersing gas toward the outlet end portion of the air tube and a conduit for feeding the fuel to the nozzle or orifice. An air flow control device and method enable air flow and pressure to be regulated at locations near the nozzle and between the blower and the nozzle. A contour of a throttle member of the burner is designed so as to achieve a prescribed pressure in a region between the throttle member and head of the burner over the range of the burner.
    Type: Grant
    Filed: December 30, 2000
    Date of Patent: May 7, 2002
    Assignee: R. W. Beckett Corporation
    Inventors: Victor J. Turk, John M. Laisy, Len Fisher
  • Burner with air flow adjustment
    Publication number: 20010036608
    Abstract: A burner includes a motor driven blower, an air tube having an inlet end portion and an outlet end portion, a housing forming an air flow path between the blower and the air tube, a nozzle for spraying liquid fuel or orifice for dispersing gas toward the outlet end portion of the air tube and a conduit for feeding the fuel to the nozzle or orifice. An air flow control device and method enable air flow and pressure to be regulated at locations near the nozzle and between the blower and the nozzle. A contour of a throttle member of the burner is designed so as to achieve a prescribed pressure in a region between the throttle member and head of the burner over the range of the burner.
    Type: Application
    Filed: December 30, 2000
    Publication date: November 1, 2001
    Inventors: Victor J. Turk, John M. Laisy, Len Fisher
  • Burner with air flow adjustment
    Patent number: 6244855
    Abstract: A burner includes a motor driven blower, an air tube having an inlet end portion and an outlet end portion, a housing forming an air flow path between the blower and the air tube, a nozzle for spraying liquid fuel or orifice for dispersing gas toward the outlet end portion of the air tube and a conduit for feeding the fuel to the nozzle or orifice. An air flow control device and method enable air flow and pressure to be regulated at locations near the nozzle and between the blower and the nozzle.
    Type: Grant
    Filed: August 11, 1999
    Date of Patent: June 12, 2001
    Assignee: R. W. Beckett Corporation
    Inventors: Victor J. Turk, John M. Laisy, Len Fisher
  • Sun visor with an integral radio
    Patent number: D435331
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: December 26, 2000
    Inventor: Len Fisher