Patents by Inventor John A. Ryerse

John A. Ryerse 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).

  • Patent number: 4508148
    Abstract: A pharmaceutical filler apparatus (20) is disclosed. The pharmaceutical filler apparatus (20) cooperates with a conveyor (22) conveying containers to position each of the containers proximate a fluid delivery conduit (36) for receipt of fluid. The present invention further includes a reservoir (42) positioned above the containers at a predetermined height, the fluid being maintained in the reservoir at a constant level. The pharmaceutical apparatus (20) further includes a quick acting pinch valve (50) associated with the fluid delivery (36) for opening and closing the fluid delivery conduit (36). The pinch valve apparatus (50) includes a biasing spring (98) for biasing a valve apparatus (50) into a first position whereby the fluid delivery conduit (36) is closed. A cam actuator apparatus (54) cooperates with the pinch valve apparatus (50) to position the pinch valve (50) in a second position whereby the fluid delivery conduit (36) is opened.
    Type: Grant
    Filed: May 6, 1983
    Date of Patent: April 2, 1985
    Assignee: TL Systems Corporation
    Inventors: Hans W. Trechsel, Allan B. Larson, John A. Ryerse