Patents by Inventor Rodger Alan Lisk

Rodger Alan Lisk 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).

  • Heat exchanger with variable compression side support
    Patent number: 6269868
    Abstract: A heat exchanger having a side support with a variable compression tab member is disclosed. The tab member engages a brazing fixture used in manufacturing the core and prevents damage to the fins of the core form the brazing fixture.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: August 7, 2001
    Assignee: Visteon Global Technologies, Inc.
    Inventors: Chad Richard Welding, Rodger Alan Lisk, William Wellington Dinnan, III
  • Method of producing corrugated fins
    Patent number: 5758535
    Abstract: A method of producing corrugated fins employing a fin mill machine (12) for forming strip stock (14) into corrugated fins (16) to form heat exchanger fins or the like. A fin mill machine (12) that can carry out the method includes a tension control subsystem (20) employing a pneumatic cylinder (32) to create the tension which is controlled by a feedback loop which automatically adjusts cylinder pressure based upon measurements from a strain gauge (44). The fin mill machine also includes a height measurement subsystem (22) which continually measures the average height of the fins in a packed state, which allows for manual or automatic feedback to the tension subsystem (20) to adjust the average fin height.
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: June 2, 1998
    Assignee: Ford Motor Company
    Inventors: Ronald Lewis Pardi, Alfred John Michelini, Rodger Alan Lisk
  • Fin height measurement for a fin mill machine
    Patent number: 5640871
    Abstract: A fin mill machine (12) for forming strip stock (14) into corrugated fins (16) to form heat exchanger fins or the like. The fin mill machine (12) includes a height measurement subsystem (22) which continually measures the average height of the fins in a packed state, which allows for manual or automatic feedback to the tension subsystem (20) to adjust the average fin height.
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: June 24, 1997
    Assignee: Ford Motor Company
    Inventors: Rodger Alan Lisk, Ronald Lewis Pardi