Clockwise or counterclockwise rotation control device of a...

Details Clockwise or counterclockwise rotation control device of a... Clockwise or counterclockwise rotation control device of a...

2007-02-13

2007-02-13

Smith, Scott A. (Department: 3721)

Tool driving or impacting

Impacting devices

With means for rotating tool

C173S093000, C173S093500, C173S168000, C173S169000

Reexamination Certificate

active

11319520

ABSTRACT:
The present invention discloses a clockwise or counterclockwise rotation control device installed to a pneumatic tool uses pressurized air as power. The pneumatic tool comprises a main body of the pneumatic motor module, a rear cover module disposed at a rear end of the main body and having an air guide base, and a containing space disposed inside the air guide base for installing a control valve. The control valve includes a valve passage and two airflow passages interconnected to the pneumatic motor module and the containing space to produce two opposite rotating directions. The direction of the valve passage can be adjusted by changing the control valve, so that pressurized air enters into one of the airflow passages to constitute a clockwise or counterclockwise rotating state of the pneumatic motor module. The pressurized air is controlled to enter directly from the air guide base into the pneumatic motor module.

REFERENCES:
patent: 3951217 (1976-04-01), Wallace et al.
patent: 4462282 (1984-07-01), Biek
patent: 5346024 (1994-09-01), Geiger et al.
patent: 5377769 (1995-01-01), Hasuo et al.
patent: 6622802 (2003-09-01), Hezeltine
patent: 6883617 (2005-04-01), Putney et al.
patent: 6883619 (2005-04-01), Huang
patent: 6902011 (2005-06-01), Hall
patent: 569885 (2004-01-01), None

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