Sleeve for a pneumatic fastener-driving tool

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9844864
SERIAL NO

13370393

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A fastener driving tool including a housing enclosing a cylinder having a lower end with a resilient bumper, a return air chamber in communication with the lower end of the cylinder and a piston dimensioned for reciprocation within the cylinder to impact the bumper and having a driver blade depending therefrom. At least one inlet opening is in communication with the return air chamber and at least one outlet opening is disposed in the cylinder and spaced from the at least one inlet opening. The at least outlet opening is in communication with the return air chamber and aligned with the piston so that each outlet opening is closed by the piston to seal the cylinder as the piston impacts the bumper and traps a residual volume of air in the cylinder below the piston to damp impact of the piston upon the bumper.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
ILLINOIS TOOL WORKS INC155 HARLEM AVENUE GLENVIEW IL 60025

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Moore, Stephen P Carpentersville, US 19 336
Zhao, Hanxin Northbrook, US 31 299

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