Patents by Inventor Stephen J. Vardion

Stephen J. Vardion 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).

  • Filter change indicator
    Patent number: 7412896
    Abstract: A fluid system pressure indicator is adapted for use in fluid systems having a filter element. The fluid system force indicator includes a housing partitioned to be exposed to the fluid system to provide transmission of a mechanical force between these partitioned environments to indicate the fluid pressure. This exterior shape change is such that it can be identified through tactile means not requiring visual identification.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: August 19, 2008
    Assignee: Stanadyne Corporation
    Inventors: Leon P. Janik, Stephen J. Vardion, Michael J. Williams
  • Filter change indicator
    Patent number: 7360433
    Abstract: A fluid system pressure indicator is adapted for use in fluid systems having a filter element. The fluid system force indicator includes a housing partitioned to be exposed to the fluid system to provide transmission of a mechanical force between these partitioned environments to indicate the fluid pressure. This exterior shape change is such that it can be identified through tactile means not requiring visual identification.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: April 22, 2008
    Assignee: Stanadyne Corporation
    Inventors: Leon P. Janik, Stephen J. Vardion, Michael J. Williams
  • Filter change indicator
    Patent number: 7137303
    Abstract: A fluid system pressure indicator is adapted for use in fluid systems having a filter element. The fluid system force indicator includes a housing partitioned to be exposed to the fluid system to provide transmission of a mechanical force between these partitioned environments to indicate the fluid pressure. This exterior shape change is such that it can be identified through tactile means not requiring visual identification.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: November 21, 2006
    Assignee: Stanadyne Corporation
    Inventors: Leon P. Janik, Stephen J. Vardion, Michael J. Williams
  • Modular base for a filter cartridge and method of manufacturing therefor
    Patent number: 6485643
    Abstract: A modular base for a filter assembly includes a header portion defining a cavity for receiving a filter cartridge and a communication module defining fluid pathways to and from the base. Brackets extend from the header portion and include slots. Yokes extend from the communication module to complement the slots. The brackets and received yokes together define pathways into which generally tubular compression limiters are inserted. The compression limiters serve dual functions by retaining the communication module to the header portion and reinforcing the brackets. A sealing grommet disposed between the header portion and communication module enhances the sealed integrity of the base.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: November 26, 2002
    Assignee: Stanadyne Corporation
    Inventor: Stephen J. Vardion
  • MODULAR BASE FOR A FILTER CARTRIDGE AND METHOD OF MANUFACTURING THEREFOR
    Publication number: 20020130072
    Abstract: A modular base for a filter assembly includes a header portion defining a cavity for receiving a filter cartridge and a communication module defining fluid pathways to and from the base. Brackets extend from the header portion and include slots. Yokes extend from the communication module to complement the slots. The brackets and received yokes together define pathways into which generally tubular compression limiters are inserted. The compression limiters serve dual functions by retaining the communication module to the header portion and reinforcing the brackets. A sealing grommet disposed between the header portion and communication module enhances the sealed integrity of the base.
    Type: Application
    Filed: March 13, 2001
    Publication date: September 19, 2002
    Inventor: Stephen J. Vardion