ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,853, issued on May 13, was assigned to HANWIT PRECISION INDUSTRIES LTD. (New Taipei, Taiwan).
"Push controlled positioning device" was invented by Ming-De Wu (New Taipei, Taiwan), Ching-Kai Chang (New Taipei, Taiwan) and Ying-Chih Tseng (New Taipei, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A push controlled positioning device includes a base with a through shaft hole, a push block horizontally and slidably coupled to the base and holding two limiting balls in two opposite through holes, and an axle seat with a shaft rod inserted into the shaft hole of the base and locked in place by the limiting balls under the effect of the elastic res...