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. 30, 2021
Filed:
Mar. 28, 2019
Applicant:
Industrial Technology Research Institute, Hsin-Chu, TW;
Inventors:
Assignee:
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE H, Hsin-Chu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B67B 3/20 (2006.01);
U.S. Cl.
CPC ...
B67B 3/2086 (2013.01); B67B 3/2053 (2013.01); B67B 3/2066 (2013.01); B67B 2201/065 (2013.01); B67B 2201/10 (2013.01);
Abstract
A magnetic screwdriver device includes a pad without magnetism, a driving shaft, and a driven shaft. The two shafts, magnetically attracted to each other, are disposed on opposite sides of the pad. The driving shaft is used to transmit a torque to rotate the driven shaft. When the torque exceeds a predetermined value to overcome a friction force between the driven shaft and the pad, the driven shaft would be stopped.