Description: Patent for a valve, comprised of a valve seat and a moving part that is made in such a way as to minimize wear and tear. The seat, which attaches to the pump stem, supports the value stem, which is then covered by a thimble that supports a rubber disk. This rubber disk helps prevent liquid and sand from wearing against the valve stem.
Date: November 14, 1911
Creator: Wintz, Thornton E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department