Patents Assigned to HUBB FILTERS, INC.
  • Oil filter
    Patent number: 11135533
    Abstract: An oil filter assembly is disclosed for a machine, such as an internal combustion engine, that has an oil output port and an oil input port. A mounting plate may be fixed with an outer enclosure and may be adapted for securing to the machine. The mounting plate may be further adapted to conduct oil from the machine into a peripheral portion of the outer enclosure, and then returning oil from a central portion of the outer enclosure back to the machine. Oil may pass from the peripheral portion to the central portion through a primary filter having a first porosity. A pressure-actuated valve may be fixed fluidly between the peripheral portion and central portion of the outer enclosure. Oil may pass through the pressure-actuated valve only when an oil pressure differential between the peripheral portion and the central portion of the outer enclosure exceeds a predetermined threshold pressure.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: October 5, 2021
    Assignee: HUBB FILTERS, INC.
    Inventor: Christopher M. Hubbard
  • Filter and method for filtering a liquid
    Patent number: 11058974
    Abstract: An oil filter assembly is disclosed for a machine, such as an internal combustion engine, that has an oil output port and an oil input port. A mounting plate is fixed with an outer enclosure. The mounting plate is further adapted to conduct oil from the machine into a peripheral portion of the outer enclosure, and then returning oil from a central portion of the outer enclosure back to the machine. Oil may pass from the peripheral portion to the central portion through a primary filter having a first porosity. A pressure-actuated valve is fixed fluidly between the portions of the outer enclosure.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: July 13, 2021
    Assignee: HUBB FILTERS, INC.
    Inventor: Christopher M. Hubbard
  • Oil filter
    Patent number: 10617980
    Abstract: An oil filter assembly is disclosed for a machine, such as an internal combustion engine, that has an oil output port and an oil input port. A mounting plate may be fixed with an outer enclosure and may be adapted for securing to the machine. The mounting plate may be further adapted to conduct oil from the machine into a peripheral portion of the outer enclosure, and then returning oil from a central portion of the outer enclosure back to the machine. Oil may pass from the peripheral portion to the central portion through a primary filter having a first porosity. A pressure-actuated valve may be fixed fluidly between the peripheral portion and central portion of the outer enclosure. Oil may pass through the pressure-actuated valve only when an oil pressure differential between the peripheral portion and the central portion of the outer enclosure exceeds a predetermined threshold pressure.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: April 14, 2020
    Assignee: HUBB FILTERS, INC.
    Inventor: Christopher M. Hubbard
  • Filter and method for filtering a liquid
    Patent number: 9987575
    Abstract: An oil filter assembly is disclosed for a machine, such as an internal combustion engine, that has an oil output port and an oil input port. A mounting plate is fixed with an outer enclosure. The mounting plate is further adapted to conduct oil from the machine into a peripheral portion of the outer enclosure, and then returning oil from a central portion of the outer enclosure back to the machine. Oil may pass from the peripheral portion to the central portion through a primary filter having a first porosity. A pressure-actuated valve is fixed fluidly between the portions of the outer enclosure.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: June 5, 2018
    Assignee: HUBB FILTERS, INC.
    Inventor: Christopher M. Hubbard
  • Method for filtering a liquid
    Patent number: 9339746
    Abstract: An oil filter assembly is disclosed for a machine, such as an internal combustion engine, that has an oil output port and an oil input port. A mounting plate is fixed with an outer enclosure. The mounting plate is further adapted to conduct oil from the machine into a peripheral portion of the outer enclosure, and then returning oil from a central portion of the outer enclosure back to the machine. Oil may pass from the peripheral portion to the central portion through a primary filter having a first porosity. A pressure-actuated valve is fixed fluidly between the portions of the outer enclosure.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: May 17, 2016
    Assignee: HUBB FILTERS, INC.
    Inventor: Christopher M. Hubbard