Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1991-10-11
1993-08-17
Parker, Roscoe V.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
511345F, B24B 2306
Patent
active
052357848
ABSTRACT:
A handy air tool has a grip including a cylindrical tool holding section and a valve housing fitted therein. Both tool holding section and valve housing are molded from plastic material. Air supplying and exhausting passages are formed at the time of molding the valve housing and a hole for receiving a control a valve mechanism without requiring finishing. A least portion of air supplying ducts can be formed between the tool holding section and the valve housing. The tool is provided in the tool holding section with a locking mechanism comprising a hook portion extending from the free end of an operating lever toward the grip, and restricting elements for holding the hook portion so as to close a control valve member when it is necessary to keep the tool in a non-operating state. When applied to a grinding belt type air tool, a latch mechanism is provided for selectively retaining a grinding belt in a loosened state and in a tightened state and for preventing the grinding belt supporting member from slipping off a tension bar.
REFERENCES:
patent: 3611646 (1971-10-01), Cameron et al.
patent: 3643385 (1972-02-01), Mikiya
patent: 4016684 (1977-04-01), Urda
patent: 4754579 (1988-07-01), Batt
Fukuda Kenji
Kishi Katsunobu
Nose Kinya
Oki Yasumasa
Nitto Kohki Co. Ltd.
Parker Roscoe V.
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