The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 30, 2024
Filed:
Apr. 23, 2021
Te-yu Chen, Pingtung, TW;
Te-Yu Chen, Pingtung, TW;
Abstract
An entry/exit detection locking device includes a knob axle of a lock and an engaging and holding unit and a retention unit. The knob axle includes upper and lower rotary axles each formed with a notch. The engaging and holding unit is arranged at one side of the knob axle. The retention unit is arranged below the knob axle. The retention unit is connected through a control circuit to a card reader at an outdoor side. Through adjustment, the engaging and holding unit is set in engagement with the notch of the upper rotary axle or the notch of the lower rotary axle to achieve a locked state for exit or entry. Rotating the knob axle for entry or exit triggers the retention unit to make a record of the exit or entry. The engaging and holding unit is connected to the card reader to enable unlocking through card swiping.