Patents by Inventor Thomas E. Dixon

Thomas E. Dixon 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).

  • Railway boxcar door operating unit
    Patent number: 6572082
    Abstract: A door operating apparatus is provided for safely and efficiently opening and/or closing a side door of a railway boxcar by moving a door engagement member laterally.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: June 3, 2003
    Assignee: Cascade Corporation
    Inventors: Thomas E. Dixon, James E. Brosh, Brian D. Campbell, Richard R. Estep, Larry D. Marshal
  • RAILWAY BOXCAR DOOR OPERATING UNIT
    Publication number: 20030098451
    Abstract: A door operating apparatus is provided for safely and efficiently opening and/or closing a side door of a railway boxcar by moving a door engagement member laterally.
    Type: Application
    Filed: November 27, 2001
    Publication date: May 29, 2003
    Applicant: Cascade Corporation
    Inventors: Thomas E. Dixon, James E. Brosh, Brian D. Campbell, Richard R. Estep, Larry D. Marshal
  • BI-directional tree saw
    Patent number: 4987935
    Abstract: A tree saw includes a frame adapted to be attached to the boom of a prime mover, a tree clamping mechanism on the frame, and a carriage assembly on the frame below the clamping mechanism. The carriage assembly includes a generally plate-like chassis, a generally U-shaped bulkhead upstanding from the chassis and providing a recessed base portion and forwardly-extending arm portions, and a slide mechanism on the arm portions. A rail mechanism on the frame receives the slide mechanism for reciprocating movement of the carriage assembly. A hydraulic cylinder assembly interconnects the bulkhead and frame for reciprocating the carriage assembly. An annular rim member rotatably mounted on the chassis has a geared inner circumference and a toothed outer circumference projecting forwardly of the base portion. A motor-driven pinion mechanism on the chassis engages the rim member inner circumference to rotate the rim member.
    Type: Grant
    Filed: January 5, 1990
    Date of Patent: January 29, 1991
    Assignee: Esco Corporation
    Inventors: Sean P. Corcoran, Thomas E. Dixon, Stanley Farmer, Emory D. Hungerford, Mark Mallory
  • Quick coupling for side shift cylinder of lift truck attachment
    Patent number: 4173425
    Abstract: A quick coupling for connecting a side shift cylinder of a carriage attachment to the lift carriage of a lift truck includes a pair of laterally spaced mounting blocks extending between and welded to the upper and lower cross frame members of the lift carriage to provide a mounting space therebetween. A rear portion of a mounting plate extends into the mounting space, and a pull pin extends through aligned openings of the blocks and plate to removably connect the plate to the lift carriage. A forward portion of the plate projects forwardly beyond and overlaps the front faces of the carriage cross frame members and has an opening therethrough which receives a piston rod extension of the side shift cylinder of the attachment. A second pull pin extends through an opening in the leading end portion of the extension to removably connect the side shift cylinder to the mounting plate.
    Type: Grant
    Filed: April 17, 1978
    Date of Patent: November 6, 1979
    Assignee: Brudi Equipment, Inc.
    Inventors: Thomas E. Dixon, Jerry L. Chapman