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:
Feb. 05, 2008
Filed:
Nov. 25, 2006
Wan-fu Wen, Taipei Hsien, TW;
Wan-Fu Wen, Taipei Hsien, TW;
De Poan Pneumatic Corp., Taipei, TW;
Abstract
A pneumatic nail gun includes a gun body having a cylinder therein; a hitting piston disposed in the cylinder; a main air housing collecting high pressure air; a trigger at one end of the main air housing; a main passage disposed at a peripheral portion of the cylinder, the main passage being connecting with the main air housing for gathering high pressure air therein; and a bottom valve disposed at a bottom peripheral portion of the cylinder, the bottom valve being driven to upwardly move for continuously guiding high pressure air into the bottom chamber to drive the hitting piston upwardly move to reposit when the trigger is released. When the high pressure air in the main passage is recharged, the bottom valve is driven by the high pressure air gathered in the main passage to move downward to reposit after the hitting piston being reposited.