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. 29, 2008
Filed:
Jul. 25, 2006
Applicant:
Pei-chang Sun, Taichung City, TW;
Inventor:
Pei-Chang Sun, Taichung City, TW;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25C 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A protection device of a DC-powered nail gun includes collar mounted to a connection rod on the trigger and the collar has an inner diameter larger than an outer periphery of the connection rod so that when the trigger is not pulled, the collar is positioned to pivot a second switch so that the push member of the shooting unit of the nail gun cannot activate an activation button on the second switch when a new battery pack is installed. By the collar and the pivoted second switch, the nail cannot shoot even if the push member is powered and moved by the new battery pack.