Patents by Inventor Gerald J. Rychlak

Gerald J. Rychlak 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).

  • Bag clamping apparatus
    Patent number: 6226963
    Abstract: Valving employed to control side closing elements of bag clamping apparatus of a bag filling machine is altered to cause the elements to move slowly to close the sides of a bag being filled whereby air is permitted to escape externally through slowly closing openings at the sides of the bag. At a predetermined time determined by the size and contents of the bag the openings are closed rapidly thereby sealing the bag once fitted.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: May 8, 2001
    Assignee: Chronos Richardson, Inc.
    Inventors: Gerald J. Rychlak, Robert Hemphill