Improved fastener applying device

Details Improved fastener applying device Improved fastener applying device

1976-01-08

1977-06-21

Cohen, Irwin C.

Elongated-member-driving apparatus

With means to move or guide member into driving position

Including supply magazine for constantly urged members

91402, 91461, B25C 104, F15B 13042

Patent

active

040306550

ABSTRACT:
A pneumatic fastener driving tool in which a piston-driver assembly is moved in opposed working and return strokes within a cylinder. Vent passage means of a predetermined area are provided adjacent the lower end of the cylinder to permit greatly increased velocity on the working stroke. Valve means may be provided for the vent passage to enable the use of air under pressure to drive the piston in a return stroke.
The cylinder may be defined by an axially movable sleeve, which cooperates with sealing means to provide one or more valving functions.

REFERENCES:
patent: R26262 (1967-09-01), Juiles
patent: 3055344 (1962-09-01), Fisher
patent: 3190187 (1965-06-01), Doyle
patent: 3278104 (1966-10-01), Becht et al.
patent: 3320860 (1967-05-01), Bade
patent: 3434643 (1967-03-01), Wandel
patent: 3601007 (1971-08-01), Korth
patent: 3657968 (1972-04-01), Lange
patent: 3715069 (1973-02-01), O'Connor

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