Patents by Inventor Andrew E. Colson

Andrew E. Colson 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).

  • Swimming pool apparatus
    Patent number: 4606819
    Abstract: Improved swimming pool apparatus includes contiguous, separate pool and secondary water chambers. The secondary chamber receives pool surface water via a skimmer weir regulated by the main pool water level, and via a pool main drain coupling. A cascaded, submersed filter and pump cleans and returns water to the pool.The apparatus need not be winterized and provides water recirculation and cleaning--even in the presence of surface ice; utilizes pump waste heat for water heating; and assures both pool and pool water cleaning during normal operation.
    Type: Grant
    Filed: August 8, 1984
    Date of Patent: August 19, 1986
    Inventor: Andrew E. Colson
  • Swimming pool apparatus
    Patent number: 4498984
    Abstract: Improved swimming pool apparatus includes contiguous, separate pool and secondary water chambers. The secondary chamber receives pool surface water via a skimmer weir regulated by the main pool water level, and via a pool main drain coupling. A cascaded, submersed filter and pump cleans and returns water to the pool.The apparatus need not be winterized and provides water recirculation and cleaning--even in the presence of surface ice; utilizes pump waste heat for water heating; and assures both pool and pool water cleaning during normal operation.
    Type: Grant
    Filed: January 30, 1980
    Date of Patent: February 12, 1985
    Inventor: Andrew E. Colson