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.:

US 6782957 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 31, 2004

Filed:

Oct. 17, 2001
Applicant:
Inventor:

Takeo Fujiyama, Tokyo, JP;

Assignee:

Max Co., Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25D 1/500 ;
U.S. Cl.
CPC ...
B25D 1/500 ;
Abstract

An air cylinder is connected to a centrifugal mesh clutch mechanism connected to an air motor. A driver bit is mounted to a front face of a piston of the air cylinder. A hexagonal shaft is mounted to a rear face thereof and the hexagonal shaft is fitted to a hexagonal hole formed at an anvil of the centrifugal mesh clutch mechanism. A hole having a diameter larger than that of the hexagonal shaft is formed at center of a rotor of the air motor to thereby enable to freely lift the piston and the driver bit in the air cylinder. By simultaneously driving the air motor and the air cylinder by pressurized air, the hexagonal shaft, the piston and the driver bit advance while rotating integrally to thereby fasten a screw.


Find Patent Forward Citations

Fujiyama, Takeo. (2004). Air impact driver (U.S. Patent No. 6782957). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6782957

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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