Patents by Inventor Raymond A. Allen

Raymond A. Allen 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: 4657672
    Abstract: An enclosed filter is disclosed herein having an elongated container or housing composed of transparent material incorporating a plurality of adjacent filtering chambers separated by a mesh partition or grid. Filter material especially suited for removing chloramine occupies each chamber and pump apparatus is employed for drawing water through an open grid end of the housing through the chambers for existing via a discharge port in the pump apparatus.
    Type: Grant
    Filed: June 3, 1985
    Date of Patent: April 14, 1987
    Inventor: Raymond A. Allen