US Patent Issued to Passive Bolt on Sept. 8 for "Electronic door lock with direct drive" (American, German Inventors)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,729,564, issued on Sept. 8, was assigned to Passive Bolt Inc. (Ann Arbor, Mich.).

"Electronic door lock with direct drive" was invented by Kabir Zachary Maiga (Superior Township, Mich.), Philip Michael Johnson (Plymouth, Mich.) and Simon Forster (Cologne, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electronic door lock includes a motor having a stator and a rotor that rotates relative to the stator. The rotor is configured to rotate a spindle operatively coupled to a deadbolt lock at a 1:1 drive ratio therewith. The spindle is engaged with the deadbolt lock to cause extension and retraction with rotation of the spindle."

The patent was fi...