Patents by Inventor Allen R. Newman

Allen R. Newman 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).

  • Patent number: 4586854
    Abstract: An improved powder pump for pumping air entrained solid particulate powder material comprising a pneumatic conveyor line within which there is located a low pressure venturi pumping chamber. This venturi pumping chamber is intersected by a powder supply passage through which powder is drawn into the conveyor line. Located within the powder supply passage is a rotatable tubular powder diffuser through which the powder passes in the course of passage through the powder supply passage. Rotation of the diffuser is effected by atomizing or metering air flow to the powder flow passage upstream of the venturi pumping chamber. This atomizing air flow, in addition to effecting rotation of the diffuser, also controls the rate of flow of powder through the powder supply passage and into the venturi pumping chamber.
    Type: Grant
    Filed: June 12, 1985
    Date of Patent: May 6, 1986
    Assignee: Nordson Corporation
    Inventors: Allen R. Newman, Kenneth Holley