Patents by Inventor Leonard F. Manyek

Leonard F. Manyek 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).

  • Braking mechanism for railroad cars having both pneumatic and mechanical actuators
    Patent number: 5785159
    Abstract: A braking mechanism according to the present invention for braking the wheels of a wheeled truck assembly includes a handle mounted to one beam which, when braking force is applied, urges a rod toward the other beam. The rod operates a lever mounted to the other beam which engages the actuation rod of the vehicle's pneumatic braking system, thereby operating the linkage included in the pneumatic system to separate the beams, bringing the brake pads into contact with the wheels to brake the wheels.
    Type: Grant
    Filed: June 5, 1996
    Date of Patent: July 28, 1998
    Assignee: Triax-Davis, Inc.
    Inventors: Robert G. Jackson, Leonard F. Manyek
  • Uncoupler lever with a wedge lock
    Patent number: 5129529
    Abstract: An adjustable uncoupling lever with a shiftable wedge lock. The lever includes two longitudinally shiftable rods having parts spaced from one another. The wedge lock is driven between the two rod parts to secure the rods together.
    Type: Grant
    Filed: October 14, 1991
    Date of Patent: July 14, 1992
    Assignee: Triax Tube Co.
    Inventor: Leonard F. Manyek
  • Brake beam
    Patent number: 5000298
    Abstract: A brake beam assembly for railroad cars. The brake beam includes a clevis rotatably connected to a channel member with the clevis having depending tabs which allow the clevis to be positioned in a right hand or left hand orientation. The clevis is connected to a leaf spring which is positioned in the channel member to accommodate excessive force during braking. The brake head is connected to an adaptor which allows the brake head and shoe to float and accommodate wheel wear or the misalignment of the brake beam and wheelset.
    Type: Grant
    Filed: September 18, 1989
    Date of Patent: March 19, 1991
    Assignee: Triax Tube Co.
    Inventors: Robert G. Jackson, Leonard F. Manyek