Patents by Inventor Paul E. LaCroix

Paul E. LaCroix 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).

  • Cartridge filter
    Patent number: 7294163
    Abstract: A cartridge filter has a unitary upper fitting and a separate gasket which permits a single base filter to be used with a wide range of tube sheet openings, simply by selecting the appropriate gasket. In one embodiment, the gasket is bonded to the unitary upper fitting. In another embodiment, the tubular side wall of the unitary upper fitting defines an annular step, and the gasket defines a bottom edge, at least a portion of which rests on the step.
    Type: Grant
    Filed: March 21, 2005
    Date of Patent: November 13, 2007
    Inventor: Paul E. LaCroix
  • Filter flange
    Patent number: D891601
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: July 28, 2020
    Assignee: Apel International, Inc.
    Inventor: Paul E LaCroix