Impact or demolition tool

Details Impact or demolition tool Impact or demolition tool

1975-12-15

1977-02-01

Purser, Ernest R.

Mining or in situ disintegration of hard material

Miscellaneous

175410, E21C 1300

Patent

active

040059065

ABSTRACT:
An impact or demolition tool consisting of a rod-like steel holder with one end adapted for being gripped by an impact tool while the other end has inserts of hard wear resistant material, such as a cemented hard metal carbide, imbedded therein in distributed relation.

REFERENCES:
patent: 3522852 (1970-08-01), Bardwell
patent: 3583504 (1971-06-01), Aalund
patent: 3807804 (1974-04-01), Kniff
patent: 3841709 (1974-10-01), Kniff
patent: 3858671 (1975-01-01), Kita et al.
patent: 3885638 (1975-05-01), Skidmore
patent: 3915246 (1975-10-01), Sheshtawy

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