Patents by Inventor Patrick M. Dugan

Patrick M. Dugan 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).

  • Patent number: 6716361
    Abstract: A twist-on renewable filter comprising a one-piece hollow housing, made of polymeric material having a threaded adapter for attachment to a distribution head assembly. The filter housing is fabricated from components that are made of a polymeric material that are fused together to form the one-piece hollow housing. A filter media assembly is rigidly bonded at both ends within the housing. The renewable filter has an infinite life and can be removed and cleaned, for example, by reverse flushing the filter with a cleaning solution. A bypass valve 250 is provided within the filter that is designed to provide full closure for an infinite life. The bypass valve 250 is fully located within the one-piece hollow housing such that it cannot be disabled or tampered with. The bypass valve 250 functions to allow sufficient fluid to bypass the filter media when the filter media has become contaminated and will not permit the full volume of the normal oil stream to be filtered.
    Type: Grant
    Filed: February 18, 2003
    Date of Patent: April 6, 2004
    Assignee: Dei-Tec Corporation
    Inventors: Richard J. Deibel, Patrick M. Dugan
  • Publication number: 20030127402
    Abstract: A twist-on renewable filter comprising a one-piece hollow housing, made of polymeric material having a threaded adapter for attachment to a distribution head assembly. The filter housing is fabricated from components that are made of a polymeric material that are fused together to form the one-piece hollow housing. A filter media assembly is rigidly bonded at both ends within the housing. The renewable filter has an infinite life and can be removed and cleaned, for example, by reverse flushing the filter with a cleaning solution. A bypass valve 250 is provided within the filter that is designed to provide full closure for an infinite life. The bypass valve 250 is fully located within the one-piece hollow housing such that it cannot be disabled or tampered with. The bypass valve 250 functions to allow sufficient fluid to bypass the filter media when the filter media has become contaminated and will not permit the full volume of the normal oil stream to be filtered.
    Type: Application
    Filed: February 18, 2003
    Publication date: July 10, 2003
    Applicant: Dei-Tec Corporation
    Inventors: Richard J. Deibel, Patrick M. Dugan
  • Patent number: 6568539
    Abstract: A twist-on renewable filter comprising a one-piece hollow housing, made of polymeric material having a threaded adapter for attachment to a distribution head assembly. The filter housing is fabricated from components that are made of a polymeric material that are fused together to form the one-piece hollow housing. A filter media assembly is rigidly bonded at both ends within the housing. The renewable filter has an infinite life and can be removed and cleaned, for example, by reverse flushing the filter with a cleaning solution. A bypass valve 250 is provided within the filter that is designed to provide full closure for an infinite life. The bypass valve 250 is fully located within the one-piece hollow housing such that it cannot be disabled or tampered with. The bypass valve 250 functions to allow sufficient fluid to bypass the filter media when the filter media has become contaminated and will not permit the full volume of the normal oil stream to be filtered.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: May 27, 2003
    Assignee: Dei-Tec Corporation
    Inventors: Richard J. Deibel, Patrick M. Dugan
  • Patent number: 6228274
    Abstract: A twist-on renewable filter comprising a one-piece hollow housing, made of polymeric material having threads for attachment to a distribution head assembly. A filter element is adhesively bonded at one end to the floor of the housing and at its opposing end to the top member of the one-piece hollow housing. The one-piece hollow housing has an input opening and a exit opening. The filter housing is fabricated from components that are made of a polymeric material. The renewable filter can be cleaned by the introduction of a cleaning solution in a direction opposite to the direction of normal flow.
    Type: Grant
    Filed: October 16, 1997
    Date of Patent: May 8, 2001
    Assignee: Dei-Tec Corporation
    Inventors: Richard J. Deibel, Patrick M. Dugan
  • Patent number: 6221242
    Abstract: A twist-on renewable filter comprising a one-piece hollow housing, made of polymeric material having a threaded adapter for attachment to a distribution head assembly. The filter housing is fabricated from components that are made of a polymeric material that are fused together to form the one-piece hollow housing. A filter media assembly is rigidly bonded at both ends within the housing. The renewable filter has an infinite life and can be removed and cleaned, for example, by reverse flushing the filter with a cleaning solution. A bypass valve 250 is provided within the filter that is designed to provide full closure for an infinite life. The bypass valve 250 is fully located within the one-piece hollow housing such that it cannot be disabled or tampered with. The bypass valve 250 functions to allow sufficient fluid to bypass the filter media when the filter media has become contaminated and will not permit the full volume of the normal oil stream to be filtered.
    Type: Grant
    Filed: August 11, 1999
    Date of Patent: April 24, 2001
    Assignee: Dei-Tec Corporation
    Inventors: Richard J. Deibel, Patrick M. Dugan