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:
Mar. 22, 2022
Filed:
Oct. 09, 2019
Zheng Xu, Dongguan, CN;
BO LI, Dongguan, CN;
Bo Li, Dongguan, CN;
Hongliang Zhong, Dongguan, CN;
Hefei Xue, Dongguan, CN;
Yusha Xu, Dongguan, CN;
Wentao Xu, Dongguan, CN;
Other;
Abstract
A dual-unlock combination lock provides a first set of correct password and a second set of correct password to be used independently. After a password switch pushbutton is operated to drive a bracket to a corresponding position, a corresponding correct password is input into a combination wheel, so that an elastic member props the bracket to release from a transmission element in order to unlock the combination lock. One password element can achieve the effect of unlocking the lock by using two sets of correct password independently to provide a broader scope of applicability. The first set of correct password with the setting and use similar to those of a common password is provided for ordinary users, and the second set of correct password is a fixed code provided for designated users to unlock the combination lock by scanning an identification code by a mobile terminal.