Elongated-member-driving apparatus – Explosive-type driving means – With plunger
Patent
1999-08-18
2000-05-09
Smith, Scott A.
Elongated-member-driving apparatus
Explosive-type driving means
With plunger
173211, B25C 114
Patent
active
060591633
ABSTRACT:
A high pressure gas-operated setting tool, and including a driving piston (21, 41, 61, 81) displaceable in a piston guide (7, 27, 47, 67) and having a stem (8, 28, 48, 68) and a head (9, 29, 49, 69), and a return member surrounding the stem (8, 28, 48, 68) and arranged between a stop (17), provided on the piston guide (7, 27, 47, 67) and facing in a direction opposite to a setting direction, and a front, in the setting direction, end face (18, 38, 58, 78) of the head (9, 29, 49, 69), with the return member being formed as a hollow cylindrical structural member of an elastic material and having a plurality of openings (12, 32, 34, 52, 72) which alternate, in a longitudinal direction, with layers of the elastic material.
REFERENCES:
patent: 3632032 (1972-01-01), Termet
patent: 3690536 (1972-09-01), Bakoledis
patent: 4122987 (1978-10-01), Jochum et al.
patent: 5239829 (1993-08-01), Blake
Dittrich Tilo
Ehmig Gerhard
Frommelt Markus
Pfister Norbert
Hilti Aktiengesellschaft
Smith Scott A.
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