ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,087, issued on March 18, was assigned to Pentair Water Pool and Spa Inc. (Cary, N.C.).
"Variable speed pumping system and method" was invented by James Miller (Sanford, N.C.) and Ryan Weaver (Cary, N.C.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A variable speed pumping system coupled to a fluid circuit of an aquatic application is provided. The system includes a motor, a variable speed drive in electrical communication with the motor, and a housing designed to substantially enclose the motor and the variable speed drive. The housing includes a drive cover extending over the variable speed drive and an end cover. A controller is configured to p...