Patents by Inventor Charles M. DeWoody

Charles M. DeWoody 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).

  • Liquid addition funnel for pressure reactors
    Patent number: 5073348
    Abstract: A pressure equalizing liquid addition funnel for a closed system reactor is described. The funnel includes an internal valve stem which seats in the outlet port and extends therethrough and which defines a lumen which extends axially from below the outlet port upwardly to a port in the valve stem in the upper portion of said flask. The valve stem then terminates in a valve cap which is threadedly mounted on the funnel whereby rotation of the cap will cause the valve to engage or disengage a valve seat at the outlet.
    Type: Grant
    Filed: July 9, 1990
    Date of Patent: December 17, 1991
    Assignee: Ace Glass Incorporated
    Inventor: Charles M. DeWoody