Patents by Inventor Allan DeJong

Allan DeJong 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).

  • Failsafe fan clutch
    Patent number: 4653620
    Abstract: A fan clutch having an engaged and disengaged mode of operation comprising: a plurality of centrifugal force responsive friction shoes for drivingly engaging an engagement surface; of the engagement and disengagement of the friction shoes controlled by plurality to disks, one of the disks rotatable relative to the other disk.
    Type: Grant
    Filed: May 30, 1985
    Date of Patent: March 31, 1987
    Assignee: Canadian Fram Limited
    Inventors: Julian Czajkowski, Allan DeJong