Patents by Inventor Joseph L. Thompson

Joseph L. Thompson 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).

  • Air conditioning filter system
    Patent number: 5109916
    Abstract: In an air conditioning system with a return air duct, a blower and a discharge duct, a by-pass duct is provided between the discharge duct and the return air duct such that a portion of the air being delivered by the blower is caused to be returned to mix with the incoming air from the return air duct before re-entering the blower. A chemical filter is provided in the by-pass duct such that gaseous pollutants are removed from the air flowing therethrough. With the continued recirculation of air through the system, the level of contamination in the air being delivered is eventually reduced to an acceptable level.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: May 5, 1992
    Assignee: Carrier Corporation
    Inventor: Joseph L. Thompson
  • Light fixture mounting apparatus
    Patent number: 3965346
    Abstract: A mounting bracket for a lamp fixture fixedly securable to a mounting pad on the fixture via a key-hole slot arrangement and providing adjustment for the fixture through an aiming range of nearly 180.degree..
    Type: Grant
    Filed: July 14, 1975
    Date of Patent: June 22, 1976
    Assignee: Esquire, Inc.
    Inventor: Joseph L. Thompson, Jr