ALEXANDRIA, Va., June 4 -- United States Patent no. 12,320,149, issued on June 3, was assigned to Townsteel Inc. (City of Industry, Calif.).
"Lockset with sliding spindle" was invented by Sybor Ma (La Puente, Calif.) and Chad P. Moon (Colorado Springs, Colo.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A lockset with a sliding spindle assembly allows ingress using a key on the outside or a button on the inside. The sliding spindle assembly provides first and second sliding mechanisms operated from the outside and inside, respectively, that operate a clutch to couple the outside handle to the main spindle. Each sliding mechanism comprises a key cylinder or twist and/or push button lock that rotates a cam to...