Patents by Inventor James David Hill

James David Hill 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: 9765881
    Abstract: A hydraulic circuit is disclosed for use with a powertrain having an engine, a transmission, and an output transfer group. The hydraulic circuit may have a first sump configured to collect fluid drained from the transmission, and a second sump configured to collect fluid drained from the output transfer group. The hydraulic circuit may also have a primary pump configured to draw fluid from the first sump and generate at least one flow of pressurized fluid directed to the transmission and to the output transfer group.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: September 19, 2017
    Assignee: Caterpillar Inc.
    Inventors: Scott Patrick Meyer, David Michael Thaler, Kendall Robert Harrell, Scott Alan Lyons, James David Hill
  • Publication number: 20160250923
    Abstract: A hydraulic circuit is disclosed for use with a powertrain having an engine, a transmission, and an output transfer group, The hydraulic circuit may have a first sump configured to collect fluid drained from the transmission, and a second sump configured to collect fluid drained from the output transfer group. The hydraulic circuit may also have a primary pump configured to draw fluid from the first sump and generate at least one flow of pressurized fluid directed to the transmission and to the output transfer group.
    Type: Application
    Filed: February 27, 2015
    Publication date: September 1, 2016
    Applicant: Caterpillar Inc.
    Inventors: Scott Patrick MEYER, David Michael THALER, Kendall Robert HARRELL, Scott Alan LYONS, James David HILL
  • Patent number: 4050564
    Abstract: Printing apparatus has an ink jet printhead mounted on a carrier for movement during printing of characters between left and right margin locations relative to a document. A directionally oriented grating and associated circuitry is provided to maintain a record of character and ink drop printing locations. The printhead begins its movement prior to the left margin location and sweeps toward the right margin for printing of an entire line of characters. Thereafter, the printhead is returned to the aforesaid position prior to the left margin in readiness for another line sweeping action. Provision is made for testing carrier velocities encountered in movement to the right during printing as well as to the left during carrier return and for determining optimum times of operation of the carrier return magnet and its release in order to reduce time required for carrier turnaround.
    Type: Grant
    Filed: December 4, 1975
    Date of Patent: September 27, 1977
    Assignee: International Business Machines Corporation
    Inventors: John Michael Carmichael, James David Hill, Donald Lee West
  • Patent number: 3964591
    Abstract: A font selection system is provided that is useful in conjunction with ink jet printing apparatus. Facilities are included for storing data representative of one or more fonts or character sets and for selecting these on a font basis or a character basis during printing operations.
    Type: Grant
    Filed: June 10, 1975
    Date of Patent: June 22, 1976
    Assignee: International Business Machines Corporation
    Inventors: James David Hill, Gene Austin Isbell, Thomas Hampton Williams