Patents by Inventor Raymond D. Feller

Raymond D. Feller 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).

  • Electric motor brake
    Patent number: 5406180
    Abstract: The present invention provides an internal braking system for use with electric motors, particularly electric motors used with rotary actuators. The braking system includes a brake which has a spindle disposed at least partially between the rotor and a shaft. An annular engagement portion of the brake is integrally connected to the spindle through a conical portion. The brake is forced against a stationary friction member when the motor is de-energized. The brake is preferably made from a polymeric alloy having self-lubrication properties.
    Type: Grant
    Filed: January 26, 1994
    Date of Patent: April 11, 1995
    Assignee: Johnson Service Company
    Inventor: Raymond D. Feller, Jr.
  • Electric motor brake
    Patent number: 5306989
    Abstract: The present invention provides an internal braking system for use with electric motors, particularly electric motors used with rotary actuators. The braking system includes a brake which has a spindle disposed at least partially between the rotor and a shaft. An annular engagement portion of the brake is integrally connected to the spindle through a conical portion. The brake is forced against a stationary friction member when the motor is de-energized. The brake is preferably made from a polymeric alloy having self-lubrication properties.
    Type: Grant
    Filed: May 27, 1992
    Date of Patent: April 26, 1994
    Assignee: Johnson Service Company
    Inventor: Raymond D. Feller, Jr.
  • Environmental position actuator apparatus having load responsive limit control apparatus
    Patent number: 4794314
    Abstract: A position actuator includes a motor driven low efficiency lead screw with a follower moving in parallel relation to a valve coupler of a valve shaft and a switch operator of a force/torque limit unit. A lever is pivotally coupled to the follower, coupler and the operator. The lever pivots about the operator to move the valve coupler at a valve limit. The coupler cannot move and the lever pivots about the coupler to move the operator and actuates a switch to signal an alarm and/or another controller. The limit unit includes an elongated coil spring having a low spring rate within a tubular housing having mounting plates for switches. The operator passes through the spring and has retainers abutting the spring ends and the housing to provide a factory spring calibration. The lever couplings include a lever opening with spaced knife-edges to provide low friction engagement. In a damper control, limit unit is mounted to a driven sector gear and a lever is secured to a damper shaft.
    Type: Grant
    Filed: August 28, 1987
    Date of Patent: December 27, 1988
    Assignee: Johnson Service Company
    Inventors: George J. Janu, Raymond D. Feller, Richard N. Laakaniemi