Patents by Inventor Noel Stuart Call

Noel Stuart Call 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).

  • Fluid purification system
    Patent number: 4083780
    Abstract: A fluid purification system is disclosed comprising a pressure vessel containing a plurality of spiral wrap membrane elements. The spiral wrap membrane elements are placed in parallel within the pressure vessel to purify an efficient amount of fluid for a given diameter fluid purification apparatus. The spiral wrap membrane elements have product fluid passageways of short length to insure a low pressure drop in the passageways.
    Type: Grant
    Filed: July 29, 1976
    Date of Patent: April 11, 1978
    Assignee: Envirogenics Systems Company
    Inventor: Noel Stuart Call