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:
May. 10, 2011
Filed:
Sep. 13, 2007
Applicants:
Junichi Tamura, Tokyo, JP;
Katsuhiko Murayama, Tokyo, JP;
Masakazu Konishi, Tokyo, JP;
Inventors:
Assignee:
Max Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25C 1/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a feed piston and cylinder mechanism for feeding a feed claw that engages with and disengages from connected nails accommodated within a magazine to a nose portion, the feed claw is biased in a feeding direction by a bias member and is retracted in a backward direction by high-pressure combustion gas. A valve is provided in a path which guides the high-pressure combustion gas to the feed piston and cylinder mechanism and communicates the path with the atmosphere. The feed piston and cylinder mechanism is controlled by opening/closing the valve.