Button assembly for rotary rock cutters

Details Button assembly for rotary rock cutters Button assembly for rotary rock cutters

1979-12-27

1982-07-13

Pate, III, William F.

Boring or penetrating the earth

Bit or bit element

Rolling cutter bit or rolling cutter bit element

175410, E21B 1052

Patent

active

043390099

ABSTRACT:
A button assembly for a rotary rock cutter utilized in the penetration of rock strata, especially subterranean strata, having a highly abrasion resistant insert, such as tungsten carbide. The insert is supported by a button having a high abrasion resistance and a transverse significantly higher rupture strength than tungsten carbide. The button penetrates rock strata while continually supporting the insert. The button assembly is fixedly secured to a rotary rock cutter and may be secured in such a manner as to provide a circumferentially extending disc cutting surface.

REFERENCES:
patent: 2121202 (1938-06-01), Killgore
patent: 3693736 (1972-09-01), Gardner
patent: 3984910 (1976-10-01), Helton et al.

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