Patents by Inventor Peter T. Randke

Peter T. Randke 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).

  • Chemical refill system
    Patent number: 4979643
    Abstract: A system for automatically filling a bubbler, or other vapor delivery system from a reservoir, is disclosed in which the conduit system is purged and pressurized with inert gas, using a unique refill reservoir, level sensing and valving system.
    Type: Grant
    Filed: March 22, 1989
    Date of Patent: December 25, 1990
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Bruce A. Lipisko, John C. Schumacher, Richard E. Howard, Peter T. Randke, Adrian Sandu, Robert E. Fletcher, Hans-Juergen Graf
  • Large breakseal actuator with built-in valve
    Patent number: 4696411
    Abstract: A chemical vessel having improved access means comprising an access tube forming an openable conduit, being closed at the internal end with a discoid breakseal during shipment, a chemical removal tube slidably mounted in gas tight relationship inside the access tube, and means for moving the removal tube into engagement with and breaking out the breakseal for permitting removal of chemical from the vessel is disclosed.
    Type: Grant
    Filed: May 20, 1986
    Date of Patent: September 29, 1987
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Hans-Juergen Graf, Peter T. Randke