Patents by Inventor Stephen P. Kendall

Stephen P. Kendall 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).

  • Cartridge locking device and method
    Patent number: 6974491
    Abstract: A cartridge locking device (10) for holding a filter media (14) in a plenum (12) in which an actuator (112) movable between a first position and a second position connects to a lever member (122) inwardly of the plenum (12) that moves between a position bearing on the filter media (14) to a spaced-apart position for replacing the filter media (14), the locking device (10) operable from the holding position to the spaced-apart position without opening the plenum (12), thereby reducing the time for the plenum (12) to be open during replacement operations. A method of locking and releasing a filter (14) for filter (14) change out is disclosed.
    Type: Grant
    Filed: August 1, 2003
    Date of Patent: December 13, 2005
    Inventor: Stephen P. Kendall