Piston tool buffer assembly

Details Piston tool buffer assembly Piston tool buffer assembly

1980-05-15

1982-06-01

Bell, Paul A.

Elongated-member-driving apparatus

Explosive-type driving means

With plunger

227 9, B25C 114, B25C 118

Patent

active

043323405

ABSTRACT:
A buffer assembly for use in a piston-type powder-actuated tool, which buffer assembly provides for a longer useful life of the piston. The buffer assembly includes an elastomeric member which is disposed in the bore of the tool barrel, and which is fitted with a metallic cap. The tool barrel and metallic cap combine to control and constrain radial and longitudinal expansion of the elastomeric member, when the latter is impacted by the driven piston. In this manner, extrusion of the elastomeric member is prevented and, at the same time, the piston is prevented from contacting other hardened tool surfaces.

REFERENCES:
patent: 2724116 (1965-11-01), Termet
patent: 3172119 (1965-03-01), Siddons
patent: 3331546 (1967-07-01), Brunelle
patent: 3465942 (1969-09-01), Diehl
patent: 3543986 (1970-12-01), Bakoledis et al.
patent: 3677456 (1972-07-01), Ramspect et al.
patent: 4122987 (1972-10-01), Jochum
patent: 4134527 (1979-01-01), Termet
patent: 4189081 (1980-02-01), Combette et al.

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