Boring or penetrating the earth – Bit or bit element – Magnetized or with magnet
Patent
1977-12-02
1980-04-29
Pate, III, William
Boring or penetrating the earth
Bit or bit element
Magnetized or with magnet
175410, E21B 936
Patent
active
042001595
ABSTRACT:
Tool for drilling bore holes and earth formations in which a bit body matrix, including tungsten carbide, has a plurality of carriers secured thereto, to each of which a cutting element is secured by soldering, after the body matrix has been produced, to avoid subjecting the diamond material embodied in the cutting element to the high temperatures required to produce the matrix body, which would have deleterious effects on the diamond. Each carrier has great rigidity and is provided with a plane surface confronted by the plane back surface of the cutting element to provide a desired narrow solder gap between the cutting element and carrier of uniform width, into which the solder is deposited to adhere the cutting element and carrier together, with the load being transmitted directly from the cutter element to the rigid carrier.
REFERENCES:
patent: 1506119 (1924-08-01), Hansen
patent: 2951683 (1960-09-01), Tilden
patent: 3106973 (1963-10-01), Christensen
patent: 3127945 (1964-04-01), Bridwell
patent: 3747699 (1973-07-01), Fenstra
patent: 3757878 (1973-09-01), Wilder
patent: 3938599 (1976-02-01), Horn
patent: 4006788 (1977-02-01), Garner
patent: 4073354 (1978-02-01), Rowley
Jurgens Rainer
Katzorke Klaus
Peschel Eberhard
Rathkamp Hermann
Christensen Inc.
Pate, III William
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