Patents by Inventor John A. Loffink

John A. Loffink 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: 10486527
    Abstract: A multi-use fuel tank flange assembly facilitates the attachment and removal of multiple components thereto, such as a draw and return tube assembly, a fuel filler neck, and a cover plate. Each of these components may be removed from the flange without damage to the component, the flange or the fuel tank. Multiple flanges may be used on a single fuel tank to allow multiple components to be secured to the single fuel tank.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: November 26, 2019
    Inventor: John A. Loffink
  • Patent number: 10449852
    Abstract: The present invention provides a fuel cap including a body and a seal positioned on the body, the cap adapted for engaging a filler tube opening, and the seal positioned on the cap body such that the seal sealingly engages an inner diameter surface of a fuel filler neck to seal the cap to the fuel filler neck.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: October 22, 2019
    Inventor: John A. Loffink
  • Publication number: 20180312054
    Abstract: A fuel tank assembly includes a securement structure that may be secured to a fuel tank. The securement structure may stabilize the lower regions of a draw tube and a return tube positioned within the fuel tank such that movement and vibration of the draw and return tubes is reduced during motion of the vehicle to which the fuel tank is secured.
    Type: Application
    Filed: April 19, 2018
    Publication date: November 1, 2018
    Inventor: John A. Loffink
  • Publication number: 20170015468
    Abstract: A multi-use fuel tank flange assembly facilitates the attachment and removal of multiple components thereto, such as a draw and return tube assembly, a fuel filler neck, and a cover plate. Each of these components may be removed from the flange without damage to the component, the flange or the fuel tank. Multiple flanges may be used on a single fuel tank to allow multiple components to be secured to the single fuel tank.
    Type: Application
    Filed: September 27, 2016
    Publication date: January 19, 2017
    Inventor: John A. Loffink
  • Publication number: 20160263993
    Abstract: The present invention provides a fuel cap including a body and a seal positioned on the body, the cap adapted for engaging a filler tube opening, and the seal positioned on the cap body such that the seal sealingly engages an inner diameter surface of a fuel filler neck to seal the cap to the fuel filler neck.
    Type: Application
    Filed: March 13, 2015
    Publication date: September 15, 2016
    Inventor: John A. Loffink
  • Patent number: 7568493
    Abstract: An improved thermal relief vent for a fuel tank, and a method of manufacturing the same, includes a thermal relief ring that is used to create a mechanical seal within the vent. The thermal relief ring, at room temperature, is crimped in place by use of the vent cap itself. The crimped thermal relief ring creates a mechanical seal between the vent and the vent cap, up until a predetermined thermal relief point, at which time the thermal relief ring will soften and/or yield and release the vent cap from the vent body.
    Type: Grant
    Filed: January 13, 2006
    Date of Patent: August 4, 2009
    Inventors: Neal L. Keefer, Kenneth A. Watson, John A. Loffink
  • Patent number: 7017599
    Abstract: An improved thermal relief vent for a fuel tank, and a method of manufacturing the same, includes a thermal relief ring that is used to create a mechanical seal within the vent. The thermal relief ring, at room temperature, is crimped in place by use of the vent cap itself. The crimped thermal relief ring creates a mechanical seal between the vent and the vent cap, up until a predetermined thermal relief point, at which time the thermal relief ring will soften and/or yield and release the vent cap from the vent body.
    Type: Grant
    Filed: February 18, 2003
    Date of Patent: March 28, 2006
    Inventors: Neal L. Keefer, Kenneth A. Watson, John A. Loffink
  • Publication number: 20040159349
    Abstract: An improved thermal relief vent for a fuel tank, and a method of manufacturing the same, includes a thermal relief ring that is used to create a mechanical seal within the vent. The thermal relief ring, at room temperature, is crimped in place by use of the vent cap itself. The crimped thermal relief ring creates a mechanical seal between the vent and the vent cap, up until a predetermined thermal relief point, at which time the thermal relief ring will soften and/or yield and release the vent cap from the vent body.
    Type: Application
    Filed: February 18, 2003
    Publication date: August 19, 2004
    Inventors: Neal L. Keefer, Kenneth A. Watson, John A. Loffink
  • Patent number: D558120
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: December 25, 2007
    Inventors: Kenneth A. Watson, John A. Loffink