ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,460,646, issued on Nov. 4, was assigned to Xylem Europe GmbH (Schaffhausen, Switzerland).
"Method for performing priming of a submersible pump" was invented by Jan Backe (Svartsjo, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for priming of a pump in response to a priming condition includes confirming that the liquid level in the reservoir is located at the same level or above the upper portion of the impeller, driving the impeller in a reverse direction of rotation for a time duration between 2 seconds and 5 seconds, stopping the impeller from rotating in the reverse direction of rotation, driving the impeller in a forward direction of...