Patents by Inventor Dennis W. Croll

Dennis W. Croll 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).

  • Containment and diversion cap for gas cylinders
    Patent number: 5158204
    Abstract: Containment cap and adapter for mounting on a gas cylinder to isolate the cylinder valve from the ambient atmosphere and contain leakage from said valve. The cap can include means to receive inner-pressurization and remove contained leakage.
    Type: Grant
    Filed: February 6, 1992
    Date of Patent: October 27, 1992
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Robert L. Martrich, Dennis W. Croll, Stanley F. Christoff