Patents by Inventor Thomas F. Leahy

Thomas F. Leahy 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).

  • Condensate scavenging system and method for in-ground vehicle lifts
    Patent number: 7534095
    Abstract: An in-ground lift (10) is provided with a condensate scavenging system (30) that includes a pump (32) and a control (34) that is connected to the pump (32) and configured to selectively switch the pump (32) between a non-pumping state wherein the pump (32) is inactive and a pumping state wherein the pump (32) is expelling condensate from the base structure (12) of the lift (10). It is preferred that the control (34) be configured so that the pump (32) automatically switches between the non-pumping state and the pumping state in response to a predetermined change of state in the in-ground vehicle lift (10).
    Type: Grant
    Filed: February 22, 2005
    Date of Patent: May 19, 2009
    Assignee: SVI International, Inc.
    Inventors: Douglas W. Climenhaga, Thomas F. Leahy
  • Solvent-free esterification of carboxyaromatics
    Patent number: 4395566
    Abstract: An improved process for exterifying carboxyaromatics is disclosed wherein an anhydride of a carboxyaromatic, such as pyromellitic dianhydride, is reacted with a fluorinated alcohol and an epoxide to give a mixed ester capable of imparting oil and/or water repellency to textiles. The improvement comprises utilizing the epoxide as the reaction medium to reduce reaction times and waste water treatment requirements.
    Type: Grant
    Filed: March 8, 1982
    Date of Patent: July 26, 1983
    Assignee: American Hoechst Corporation
    Inventors: James H. Covill, Michael G. Kelly, Thomas F. Leahy