Combustion-powered tool assembly

Details Combustion-powered tool assembly Combustion-powered tool assembly

1992-03-09

1993-03-30

Yost, Frank T.

Elongated-member-driving apparatus

With interlock means

227 10, 123 46SC, B25C 108

Patent

active

051976463

ABSTRACT:
In a combustion-powered, fastener-driving tool, a cylinder body mounted fixedly within a housing structure has a combustion chamber defining an axis. A valve sleeve functions to open and close the combustion chamber. A piston operative within the combustion chamber and a driving blade moveable with the piston function to drive a fastener into a workpiece. An improved linkage for moving the valve sleeve includes a workpiece-contacting element and a pair of arms attached to such element and disposed alongside the cylinder body and the nosepiece. An improved, one-piece, interlocking member prevents a trigger from being actuated unless the combustion chamber is closed. Thus, a simple, compact, lightweight tool is provided.

REFERENCES:
patent: 4403722 (1983-09-01), Nicolich
patent: 4405071 (1983-09-01), Austin
patent: 4483473 (1984-11-01), Wagdy
patent: 4483474 (1984-11-01), Nicolich
patent: 4721240 (1988-01-01), Cotta
patent: 5090606 (1992-02-01), Torii et al.

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