Patents by Inventor Allen F. Boyer

Allen F. Boyer 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: 6860706
    Abstract: A method of verifying proper coupling of an implement assembly to a lift arm assembly by an operator who is located in a cab of a work machine is disclosed. The work machine includes the implement assembly and the lift arm assembly. The implement assembly includes a hinge plate. The hinge plate has a first coupling aperture extending therethrough. The lift arm assembly has a lift arm and a cylinder. The cylinder is secured to the lift arm. The method includes the step of actuating the cylinder so as to move a pin from a first pin position to a second pin position. The pin is spaced apart from the first coupling aperture when the pin is located in the first pin position. The pin extends through the first coupling aperture when the pin is located in the second pin position.
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: March 1, 2005
    Assignee: Caterpillar Inc.
    Inventors: D. Michael Godwin, Ronald Mark Ginn, Allen F. Boyer
  • Patent number: 6609587
    Abstract: A frame for a work machine includes a first side wall portion having a first and second bore hole defined therein. The frame further includes a second side wall portion having a third and fourth bore hole defined therein. The first bore hole is linearly aligned with the third bore hole, and the second bore hole is linearly aligned with the fourth bore hole. The frame also includes a central wall portion having a fifth and a sixth bore hole defined therein. The central wall portion is positioned such that the fifth bore hole is linearly aligned with the first and third bore holes and the sixth bore hole is linearly aligned with the second and fourth bore holes. The frame has relatively few parts, lower manufacturing costs, and provides greater visibility to an operator of a work machine on which it is mounted.
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: August 26, 2003
    Assignee: Caterpillar Inc
    Inventors: D. Wynne Smith, Allen F. Boyer
  • Publication number: 20010053323
    Abstract: A method of verifying proper coupling of an implement assembly to a lift arm assembly by an operator who is located in a cab of a work machine is disclosed. The work machine includes the implement assembly and the lift arm assembly. The implement assembly includes a hinge plate. The hinge plate has a first coupling aperture extending therethrough. The lift arm assembly has a lift arm and a cylinder. The cylinder is secured to the lift arm. The method includes the step of actuating the cylinder so as to move a pin from a first pin position to a second pin position. The pin is spaced apart from the first coupling aperture when the pin is located in the first pin position. The pin extends through the first coupling aperture when the pin is located in the second pin position.
    Type: Application
    Filed: January 30, 1998
    Publication date: December 20, 2001
    Applicant: Caterpillar, Inc.
    Inventors: D. MICHAEL GODWIN, RONALD MARK GINN, ALLEN F. BOYER
  • Patent number: D412506
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: August 3, 1999
    Assignee: Caterpillar Inc.
    Inventors: Allen F. Boyer, Dana D. Branham, R. Mark Ginn, D. Wynne Smith, David G. Surridge