Patents by Inventor Marlin B. Hull

Marlin B. Hull 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).

  • Prosthetic knee joint
    Patent number: 5246465
    Abstract: A robotic knee for mounting on an upper leg stump of an allows movement from a standing position to a normal walking position and then to a kneeling position and return to a standing position. A mounting plate receives the upper leg stump of an amputee. The knee includes a housing having a drive motor which can be rotated in one direction to bend the knee and then reversed to straighten the knee. The drive motor turns a worm gear which engages a main drive gear. A pair of extension pulleys is mounted on a main drive gear shaft attached to the main drive gear. A pair of extension cables is attached at a first end to the extension pulleys and wrapped thereon. A second end of the extension cables is attached to a front portion of a mounting plate. A pair of flexion pulleys is also attached to the main drive gear. A pair of flexion cables is attached at a first end to the flexion pulleys and wrapped thereon. A second end of the flexion cables is attached to a rear portion of the mounting plate.
    Type: Grant
    Filed: April 19, 1991
    Date of Patent: September 21, 1993
    Assignee: Richard G. Rincoe
    Inventors: Richard G. Rincoe, Marlin B. Hull
  • Moisture control system
    Patent number: 4779970
    Abstract: A moisture control system is provided for a pelletizing process wherein the moisture content of the pellets leaving the pelletizing process is constantly monitored and differences between the measured moisture content of the pellets and a set point indicating the desired moisture content of the pellets are used to regulate variable process controls in the pelletizing process so that the pellets leaving the pelletizing process will have the proper moisture content. Also, a system for protecting a viewing window of an instrument from contaminants is provided.
    Type: Grant
    Filed: February 9, 1987
    Date of Patent: October 25, 1988
    Assignee: Adolph Coors Company
    Inventors: Mark R. Irish, Marlin B. Hull
  • Pelletizer with moisture control system
    Patent number: 4721448
    Abstract: A moisture control system is provided for a pelletizing process wherein the moisture content of the pellets leaving the pelletizing process is constantly monitored and differences between the measured moisture content of the pellets and a set point indicating the desired moisture content of the pellets are used to regulate variable process controls in the pelletizing process so that the pellets leaving the pelletizing process will have the proper moisture content. Also, a system for protecting a viewing window of an instrument from contaminants is provided.
    Type: Grant
    Filed: December 19, 1985
    Date of Patent: January 26, 1988
    Assignee: Adolph Coors Company
    Inventors: Mark R. Irish, Marlin B. Hull