Patents by Inventor Roger A. Steuck

Roger A. Steuck 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).

  • Drum rotation indicator
    Patent number: 4809857
    Abstract: A drum rotation indicator for indicating the speed of raising and lowering a load by a crane winch. A rate generator connected to the winch develops electrical pulses having a frequency proportional to winch rotational speed. A solenoid having a movable plunger is mounted in the cab of a crane where the vibration of the plunger can be sensed by a crane operator. Pulses from the rate generator are amplified and coupled to the solenoid to cause the plunger to vibrate at a rate corresponding to pulse frequency.
    Type: Grant
    Filed: August 10, 1987
    Date of Patent: March 7, 1989
    Assignee: FMC Corporation
    Inventors: Roger A. Steuck, Paul T. Culler, Kelly Drake
  • Freefall winch system and method of operation
    Patent number: 4398698
    Abstract: One or more freefall systems for a crane or the like is disclosed, which system includes a protective circuit that includes three separate switches that must be closed before the winch can be placed in its freefall mode. A mode switch in the cab must first be closed, a brake pedal must be depressed to close a second switch, and a third switch must be held closed by the operator during freefall.
    Type: Grant
    Filed: May 29, 1981
    Date of Patent: August 16, 1983
    Assignee: FMC Corporation
    Inventors: Steven C. Crawford, Thomas J. Feltman, Roger A. Steuck