US Patent Issued to SMC on July 1 for "Drive system for chuck device" (Japanese Inventors)

ALEXANDRIA, Va., July 3 -- United States Patent no. 12,343,804, issued on July 1, was assigned to SMC Corp. (Tokyo).

"Drive system for chuck device" was invented by Hisashi Yajima (Tsukuba, Japan), Gen Tsuchiya (Tsukubamirai, Japan), Masayuki Ishikawa (Toride, Japan) and Takehiko Kanazawa (Kashiwa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A drive system for driving a chuck device including a piston and a pair of fingers to be opened and closed according to the displacement of the piston, includes a controller, a detection sensor to detect an axial position of the piston, and three-port servo valves to switch a state of supply of the fluid to the chuck device. A degree of valve opening is controll...