ALEXANDRIA, Va., July 9 -- United States Patent no. 12,352,684, issued on July 8, was assigned to Siemens Industry Inc. (Alpharetta, Ga.).
"Damper torque or valve force testing device" was invented by Guy P. Caliendo (Algonquin, Ill.), Gary Eiklor (Elgin, Ill.), Dean B. Anderson (Wonder Lake, Ill.) and Marco Marder (Ebikon, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A testing device characterizes a damper/valve in situ in a HVAC system. It comprises a controller including a processor and a memory and circuitry. The testing device is mounted on a damper assembly having a control shaft and a damper rotatably coupled to the control shaft such that the control shaft is activated by the circuitry ...