Patents by Inventor Allen W. Leppo

Allen W. Leppo 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).

  • Parts washer
    Patent number: 5845661
    Abstract: A parts washer for removing cutting oil from machined parts includes two open compartments separated by a common heat-conducting wall. A single heater in one compartment heats washing solution in both compartments. The back of the washer has a stepped configuration to protect components from injury while the washer is on the shop floor.
    Type: Grant
    Filed: June 18, 1997
    Date of Patent: December 8, 1998
    Assignee: R. H. Sheppard Co., Inc.
    Inventor: Allen W. Leppo