Patents by Inventor Walter O' Dowd

Walter O' Dowd 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).

  • Dry powder batch activation system
    Patent number: 5947596
    Abstract: A system for mixing dry powder and water having a non-pressurized make-up reservoir (10). The make-up water is transferred by a booster pump (14) through a transfer pipe (20) at a predetermined flow rate and pressure for operation of a dry powder eductor (26) fed through powder hopper (28). The educted powder is instantly wetted through an area causing a high shear environment (25). A solution mix tank (32) is placed within the reservoir tank (10) having a turbine mixer (40) for maintaining the polymer solution in a uniform state. The mixed solution is maintained at a predetermined level and is available for transfer through discharge port (50) in batch, upon demand.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: September 7, 1999
    Assignee: U.S. Filter/Stranco
    Inventor: Walter O' Dowd