Patents by Inventor Eugene M. Poplawski

Eugene M. Poplawski 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: 4140233
    Abstract: A load skidding vehicle including a vehicle frame and front and rear wheels on the frame. A grapple mechanism is mounted on the frame and includes a grapple outside of the periphery of the frame for partially lifting a load to be skidded across the ground. A force applying member is carried by the frame for applying a force having a substantial downward component to a load grasped by the grapple at a point spaced from the point of engagement of the load with the grapple and remote from the frame to thereby provide a reactive force tending to equalize the weight distribution on the wheels of the vehicle.
    Type: Grant
    Filed: December 27, 1976
    Date of Patent: February 20, 1979
    Assignee: Caterpillar Tractor Co.
    Inventors: John R. Muntjanoff, Eugene M. Poplawski, Kenneth W. Timmons
  • Patent number: 4121691
    Abstract: A composite inspection plate-step has a first member and at least one step member. The first member has a middle portion and inner and outer surfaces. The first member has at least one opening of a preselected configuration through the middle portion and is defined by a lower edge.The step member has first and second portions and is of a generally "J" configuration. The first portion extends substantially completely across and a preselected distance through the opening in the first member and is fixedly connected to the lower edge of the opening and is generally horizontal in the installed position. The second portion is fixedly connected to the outer surface of the first member.The first member is releaseably connected over an inspection port of associated structure by fastening means.
    Type: Grant
    Filed: October 17, 1977
    Date of Patent: October 24, 1978
    Assignee: Caterpillar Tractor Co.
    Inventor: Eugene M. Poplawski
  • Patent number: 3987526
    Abstract: An improved fairlead roller assembly wherein the wear portion is removably installed to permit facilitated maintenance and replacement. The wear portion of the assembly is defined by a tubular element which is captured endwise between improved end members and removably secured thereto by readily removable securing structure.
    Type: Grant
    Filed: May 12, 1975
    Date of Patent: October 26, 1976
    Assignee: Caterpillar Tractor Co.
    Inventor: Eugene M. Poplawski
  • Patent number: 3961827
    Abstract: A wheel assembly comprises an axle housing secured to the frame of a vehicle, a spindle secured to the axle housing and a wheel rotatably mounted on the spindle. The axle housing and wheel spindle are secured together at radial flanges thereof by a plurality of circumferentially disposed bolts. A concavity is formed on the inner face of each of the flanges to impose compressive forces on radially inner portions thereof when the flanges are drawn and secured together by the bolts.
    Type: Grant
    Filed: June 20, 1975
    Date of Patent: June 8, 1976
    Assignee: Caterpillar Tractor Co.
    Inventors: Aleksander Mankowski, Eugene M. Poplawski, Jack H. Kraina
  • Patent number: D270350
    Type: Grant
    Filed: October 14, 1980
    Date of Patent: August 30, 1983
    Assignee: Caterpillar Tractor Co.
    Inventors: Lawrence F. Clancy, John M. Parks, Eugene M. Poplawski