Bit breaker and handle

Details Bit breaker and handle Bit breaker and handle

1980-10-31

1982-10-05

Pate, III, William F.

Boring or penetrating the earth

Combined

175329, 175393, 173164, 81 90B, E21B 1000

Patent

active

043523994

ABSTRACT:
A bit breaker and handle for use in conjunction with a drill bit. The bit breaker is in the form of a plate member which is provided with an outside edge having a configuration to be drivingly received within the kelly drive of a drilling rig turntable. The plate is apertured to telescopingly receive a marginal length of the main body of the bit therethrough. A plurality of lugs are circumferentially placed about the aperture. The lugs are slidably received within an enlarged marginal length of the external bit passageways, and abuttingly engage a shoulder formed at the outlet end of the passageway. The drill tubing is held while the turntable is rotated in the appropriate direction to "make up" or "break out" the tubing threads respective to the threads of the bit. The external passageways are further provided with radially extending counterbores which receive the marginal end of a handle therewithin so that the bit can be easily lifted respective to the plate member.

REFERENCES:
patent: 2719025 (1955-09-01), Shore
patent: 3554298 (1971-01-01), Klein
"Sparkle Aplenty", Drilling-Dew, Dec. 1976, p. 61, 175-329.

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