Impact ripper apparatus

Details Impact ripper apparatus Impact ripper apparatus

1991-09-30

1992-04-07

Watts, Douglas D.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Floor-working

1731621, B25D 1724, E21C 304

Patent

active

051022001

ABSTRACT:
Impact rippers are useful for transmitting high impact blows to a hard material for fracturing the material. When a linear reciprocating ram is used a mounting arrangement which maintains the ram in a neutral position, when no force is applied to the tip, must be used to divert impact force into a pivoting shank assembly. The subject impact ripper apparatus includes a shank assembly with an impact surface and a cavity for mounting a linear ram having an impact surface. Means positions the linear ram within the cavity so that the impact surface does not extend outwardly beyond a rear impact surface of the shank assembly when no force (F) is applied to the tip. This arrangement provides for diverting impact force into the shank assembly when no force is applied to the tip.

REFERENCES:
patent: 3292976 (1966-12-01), Leavell
patent: 3437381 (1969-04-01), Bodine
patent: 3828951 (1974-08-01), Fleming
patent: 3881554 (1975-05-01), Cooley et al.
patent: 4014392 (1977-03-01), Ross
patent: 4257648 (1981-03-01), Bodine
patent: 4724912 (1988-02-01), Miyazaki et al.
patent: 4906049 (1990-03-01), Anderson
patent: 4984850 (1991-01-01), Jensen
patent: 5018792 (1991-05-01), Roussin et al.

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