Ram boring machine

Details Ram boring machine Ram boring machine

1989-06-01

1991-12-24

Yost, Frank T.

Tool driving or impacting

Impacting devices

Selective axial direction of impact

173139, 1731621, B25D 1724

Patent

active

050743643

ABSTRACT:
In a ram boring machine having a striking piston that can be moved axially in a housing and whose movements are controlled by a control pipe that is connected to a compressed air hose and is mounted in an elastic intermediate piece arranged in the housing, arranging the elastic intermediate piece on the control pipe and/or in the housing facilitates the assembly of the intermediate piece. Furthermore there is less damage to the housing, the control pipe and the compressed air hose and even the control pipe can be mounted and disassembled easier.

REFERENCES:
patent: 3179185 (1965-04-01), O'Farrell
patent: 3756328 (1973-09-01), Sudnishnikov et al.
patent: 3763939 (1973-10-01), Sudnishnikov et al.
patent: 4385665 (1983-05-01), Knoll
patent: 4733731 (1988-03-01), Tkach et al.

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