Patents by Inventor Justin R. Darnell

Justin R. Darnell 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: 8460420
    Abstract: A filter element (300) comprising a housing (400) and a filter medium (500). The housing (400) comprises a plurality of walls forming a filter compartment (420), and an outlet chamber (422). A downstream wall (448) has a circular outlet opening (470) and an annular sealing gasket (472) surrounding the outlet opening (470). Lower corners (450) and sidewall fingers (452) carry clips (454, 456) for mounting the filter element (300) to an affixed bracket. The bottom wall (442) has a shroud-aligning catch (466) and fastener-insertion receptacles (468) for shroud-securing thumbscrews.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: June 11, 2013
    Assignee: Parker-Hannifin Corporation
    Inventor: Justin R. Darnell
  • Publication number: 20090230034
    Abstract: A filter cartridge includes a fuse element (500) that closes an exit door (502) when an inlet-outlet pressure differential rises to a range corresponding to a clogged filter media. The fuse element (500) comprises a plastic poppet (540) that remains staged on a podium (520) during normal operation. An increase in inlet pressure and/or a decrease in outlet pressure pushes the poppet (540) away from the podium (520) and positions it to seal the exit door (502).
    Type: Application
    Filed: March 12, 2009
    Publication date: September 17, 2009
    Inventors: Justin R. Darnell, Lazar S. Geller, Jeffrey C. Stewart
  • Publication number: 20090064647
    Abstract: A filter element (300) comprising a housing (400) and a filter medium (500). The housing (400) comprises a plurality of walls forming a filter compartment (420), and an outlet chamber (422). A downstream wall (448) has a circular outlet opening (470) and an annular sealing gasket (472) surrounding the outlet opening (470). Lower corners (450) and sidewall fingers (452) carry clips (454, 456) for mounting the filter element (300) to an affixed bracket. The bottom wall (442) has a shroud-aligning catch (466) and fastener-insertion receptacles (468) for shroud-securing thumbscrews.
    Type: Application
    Filed: September 8, 2008
    Publication date: March 12, 2009
    Inventor: Justin R. Darnell
  • Patent number: 6902595
    Abstract: A water separator is formed in two pieces, one of which is unitary (in one piece) with the intake air scoop, and the other of which is unitary (in one piece) with the air cleaner housing, or cowl therefore. An inlet scoop piece includes an enlarged rib defining an internal enlarged channel. A drain tube extends downwardly from the annular rib. An outlet scoop piece includes an internal lip, projecting co-axial with the body of the water separator. The inlet scoop piece alternatively can include both the enlarged rib portion and the internal lip. The outlet scoop piece has a forward-facing receiving channel, outwardly surrounding the lip, which receives a forward facing mouth of the inlet scoop to properly align the inlet scoop with the outlet scoop. Attachment flanges are provided on each piece to connect the inlet scoop with the outlet scoop.
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: June 7, 2005
    Assignee: Parker-Hannifin Corporation
    Inventor: Justin R. Darnell
  • Publication number: 20040031247
    Abstract: A water separator is formed in two pieces, one of which is unitary (in one piece) with the intake air scoop, and the other of which is unitary (in one piece) with the air cleaner housing, or cowl therefore. An inlet scoop piece includes an enlarged rib defining an internal enlarged channel. A drain tube extends downwardly from the annular rib. An outlet scoop piece includes an internal lip, projecting co-axial with the body of the water separator. The inlet scoop piece alternatively can include both the enlarged rib portion and the internal lip. The outlet scoop piece has a forward-facing receiving channel, outwardly surrounding the lip, which receives a forward facing mouth of the inlet scoop to properly align the inlet scoop with the outlet scoop. Attachment flanges are provided on each piece to connect the inlet scoop with the outlet scoop.
    Type: Application
    Filed: July 22, 2003
    Publication date: February 19, 2004
    Inventor: Justin R. Darnell