ALEXANDRIA, Va., June 5 -- United States Patent no. 12,274,857, issued on April 15, was assigned to DEKA Products LP (Manchester, N.H.).
"Method and system for shape-memory alloy wire control" was invented by Colin H. Murphy (Cambridge, Mass.), Dean Kamen (Bedford, N.H.), John M. Kerwin (Manchester, N.H.) and Larry B. Gray (Merrimack, N.H.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for controlling a device using a shape-memory alloy wire is disclosed. The method includes determining an ontime for the shape-memory alloy wire based on a target volume to be pumped by a pump plunger, determining the temperature of the shape-memory alloy wire and adjusting the ontime based on the temperature of the s...