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. 13, 2018
Filed:
Sep. 29, 2014
Applicant:
Chervon Intellectual Property Limited, Road Town, VG;
Inventor:
Shichun Tao, Nanjing, CN;
Assignee:
Chervon (HK) Limited, Wanchai, HK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B 31/36 (2006.01); B23Q 3/12 (2006.01); B25F 3/00 (2006.01); B25B 23/00 (2006.01); B23B 31/107 (2006.01);
U.S. Cl.
CPC ...
B23B 31/36 (2013.01); B23B 31/1071 (2013.01); B23Q 3/12 (2013.01); B25B 23/0035 (2013.01); B25F 3/00 (2013.01);
Abstract
A rotary tool for driving drill bits or screw bits. The rotary tool includes a main body, a main shaft, a chuck, and a locking assembly for locking the chuck at a fixed position relative to the main shaft in the axial direction. The locking assembly is arranged fixedly relative to the main body in the circumferential direction of the main shaft and it has a portion that contacted with the chuck when locking the chuck.