Patents by Inventor George J. Jackson

George J. Jackson 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: 4270731
    Abstract: A hydraulic assembly including a valve having a body (40), an elongated chamber (42) having a wall and a conduit (60) in the body, a valve spool (44) movable within the chamber, a drive (48) for the spool, an elongated sleeve (50) within the chamber and spaced from the wall thereof, the sleeve movably receiving the spool in a substantially fluid tight relation and having at least one port (52) for fluid flow with the flow through the port being controlled by the position of the spool within the sleeve, resilient washers (56) spacing the sleeve from the chamber wall and yieldably supporting the sleeve within the chamber, and yieldable fluid connections (64) extending between the port in the sleeve and the conduit in the body so that deflection in the body need not cause deflection of the sleeve so that binding tendencies between the spool and the sleeve are avoided.
    Type: Grant
    Filed: April 30, 1979
    Date of Patent: June 2, 1981
    Assignee: Caterpillar Tractor Co.
    Inventor: George J. Jackson
  • Patent number: 4183267
    Abstract: A rotating assembly (22) is used, for example, as a crank assembly in an orbiting radial motor (14) to drive ring gears (16,17) or in a multiple output speed increaser or reducer. The use of more than one rotatable section connected to a first member (30), such as more than one throw on a crankshaft, can cause unequal load sharing between the sections. The rotating assembly (22) has a first member (30), a second annular member (32) positioned about the first member (30) and a third annular member (34) positioned about the second annular member (32). A first bearing element (48) positioned between the first and second members (30,32) supports the second member (32) in rotation relative to the first member. A second bearing element (56) positioned between the second and third members (32,34) supports the third member (34) in rotation relative to the second member (32).
    Type: Grant
    Filed: July 10, 1978
    Date of Patent: January 15, 1980
    Assignee: Caterpillar Tractor Co.
    Inventor: George J. Jackson
  • Patent number: 4030566
    Abstract: A lubricating and damping system for mechanisms which undergo large changes in orientation during operation is disclosed. The system includes a scavenge compartment built into the housing of the system and a plurality of scavenge pumps mounted within the housing having separate inlets so located that at least one of the inlets is submerged within the lubricating oil regardless of the orientation of the housing with the oil picked up by the scavenge pumps delivered through deaeration means and into a collection tank. A lubrication pump draws the oil from the collection tank and supplies it for lubrication of the mechanism and for the damping means of the system.
    Type: Grant
    Filed: October 28, 1975
    Date of Patent: June 21, 1977
    Assignee: Caterpillar Tractor Co.
    Inventors: Delwin E. Cobb, George J. Jackson, Richard E. Livesay, Orrin A. Stemler