Patents by Inventor Albert R. Sylvester

Albert R. Sylvester 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).

  • Closed alkaline wash water system for cleaning metal parts
    Patent number: 3930879
    Abstract: An alkaline wash water system for cleaning metal-working oil and scale from metal parts including a heated wash water recirculation system in which a small portion of the wash water is continuously removed, the oil and scale separated, and the cleaned portion returned with any make-up water required. The wash water is recirculated through a central zone of the separator. The separation may be a dual, alternate batch separation with a surge tank.
    Type: Grant
    Filed: March 20, 1974
    Date of Patent: January 6, 1976
    Assignee: Rexnord Inc.
    Inventors: Paul R. Erickson, Lawrence M. Sontoski, Albert R. Sylvester