Patents by Inventor J. Richard Shand

J. Richard Shand 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).

  • Debris tolerant solenoid
    Patent number: 4639704
    Abstract: A solenoid designed to operate immersed in a fluid containing magnetic particles of debris, and having a movable armature slidable toward and away from a fixed core within a bobbin carrying the electromagnetic coil. The bobbin is provided with internal flutes defining longitudinal passages opening at both ends of the solenoid for conducting magnetic particles or debris out through the passages as the solenoid armature moves toward the core.
    Type: Grant
    Filed: March 3, 1986
    Date of Patent: January 27, 1987
    Assignee: Bicron Electronics Company
    Inventors: J. Richard Shand, Raymond H. LaChance