Patents by Inventor Michael Axton May

Michael Axton May 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).

  • Filters
    Patent number: 3984327
    Abstract: A filter, especially for swimming pools, comprises a group of superposed filter beds operating in parallel within a single outer casing. By this means, the capacity of the filter for the floor area used is greatly increased, and also the strength requirement for the outer housing is not greatly increased. The beds may be in open topped containers resting upon each other.
    Type: Grant
    Filed: March 6, 1975
    Date of Patent: October 5, 1976
    Inventor: Michael Axton May