Tin seat for rock drill insert

Details Tin seat for rock drill insert Tin seat for rock drill insert

2006-08-11

2008-10-14

Dang, Hoang (Department: 3672)

Boring or penetrating the earth

Bit or bit element

Impact or percussion type

C175S435000

Reexamination Certificate

active

07434635

ABSTRACT:
A rock drilling bit includes at least one button having a button sidewall and button bottom, the button sidewall and the button bottom having a button sidewall geometry and a button bottom geometry, respectively. The rock drilling bit further comprises a bit body having at least one button-receiving hole having a hole sidewall and a hole bottom, the hole sidewall and the hole bottom having a hole sidewall geometry complementary to the button sidewall geometry and a hole bottom geometry, and a deformable seat compressed between the buttom bottom and the hole bottom so that the seat conforms to a hole bottom geometry and the button bottom geometry. The seat comprises tin.

REFERENCES:
patent: 3970158 (1976-07-01), Black et al.
patent: 4873895 (1989-10-01), Taylor et al.
patent: 5467669 (1995-11-01), Stroud
patent: 2005/0087371 (2005-04-01), Kembaiyan

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