Elongated-member-driving apparatus – Explosive-type driving means – With plunger
Patent
1988-09-14
1989-10-31
Yost, Frank T.
Elongated-member-driving apparatus
Explosive-type driving means
With plunger
227 9, B25C 114, B25C 118
Patent
active
048771716
ABSTRACT:
The invention provides an indirect firing fastener driving apparatus with adjustable firing power, including within a barrel holder, a barrel, a piston mounted in frictional contact within the barrel, and a pawl for retaining the piston. A ring, held against rotation in the barrel holder, is screwed onto the barrel. The ring cooperates with a free projecting into the barrel so that relative threading of the ring relative the barrel moves, through means of contact of the stop with the pawl, the position of the piston within the barrel when the barrel is pulled forwardly.
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Societe de Prospection et d'Inventions Techniques
Wolfe James L.
Yost Frank T.
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