Patents by Inventor Charles L. Polson

Charles L. Polson 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).

  • Dual spout dispensing nozzle
    Patent number: 4351375
    Abstract: A fluid dispensing nozzle adapted for dispensing gasoline has dual rigid spouts. The inner spout defines a flow passage for a fluid such as gasoline and the area between the two spouts defines an interspoutal passageway for vapor recovery.
    Type: Grant
    Filed: May 27, 1980
    Date of Patent: September 28, 1982
    Assignee: Dover Corporation
    Inventor: Charles L. Polson
  • Liquid dispensing nozzle having a flexible retaining arrangement
    Patent number: 4022235
    Abstract: A liquid dispensing nozzle of the automatic shut-off type has the trigger, which holds the valve actuating means in an open position, or its retaining means formed to flex when subjected to a force beyond that exerted by the valve actuating means when it is in any set flow position so that the trigger is automatically released from its retaining means if the nozzle should be accidentally removed from the fill pipe, for example.
    Type: Grant
    Filed: February 13, 1976
    Date of Patent: May 10, 1977
    Assignee: Dover Corporation
    Inventors: Robert L. Murray, Donald L. Leininger, Charles L. Polson