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:
Sep. 06, 2016
Filed:
Oct. 24, 2014
Applicant:
Yen-po Chen, Taipei, TW;
Inventor:
Yen-Po Chen, Taipei, TW;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E05B 27/00 (2006.01); E05B 19/00 (2006.01); E05B 35/06 (2006.01);
U.S. Cl.
CPC ...
E05B 27/0057 (2013.01); E05B 19/0017 (2013.01); E05B 27/00 (2013.01); E05B 35/06 (2013.01); Y10T 70/7531 (2015.04); Y10T 70/7791 (2015.04);
Abstract
A locking device includes a lock and a key. The lock includes a housing, a cylindrical core inserted into and rotatable relative to the housing, and a tumbler unit that is mounted between the housing and the cylindrical core to permit or prevent the relative rotation between the housing and the cylindrical core and that has a first pin extending into a helical keyway formed in the cylindrical core. The key has a helical blade capable of being inserted into the helical keyway to access the first pin, so as to switch the tumbler unit to permit the relative rotation between the cylindrical core and the housing.