LOCKABLE DRILL STEEL AND CHUCK ASSEMBLY

A drill steel-chuck assembly which includes a drill steel (26) which has a plurality of faces (56-66) and opposite ends. The drill steel has one portio n (74) adjacent one of the opposite ends thereof and an intermediate (76) portion spaced apart from the one portion. The drill steel further has one...

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Main Authors CONDON, GARY J, STATLER, DANIEL C, MASSA, TED R
Format Patent
LanguageEnglish
French
Published 21.06.2001
Edition7
Subjects
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Abstract A drill steel-chuck assembly which includes a drill steel (26) which has a plurality of faces (56-66) and opposite ends. The drill steel has one portio n (74) adjacent one of the opposite ends thereof and an intermediate (76) portion spaced apart from the one portion. The drill steel further has one transition portion (78) between the one portion and the intermediate portion so as to join the one portion and the intermediate portion. The one portion of the drill steel presents a first orientation of the faces. The intermediate portion of the drill steel presents a second orientation of the faces. The o ne transition portion (78) of the drill steel presents a twisted orientation of the faces comprising a generally constant twist of the faces from the first orientation of the one portion to the second orientation of the intermediate portion. There is a chuck (26) for attachment to the drill steel through engagement with the transition portion of the drill steel.
AbstractList A drill steel-chuck assembly which includes a drill steel (26) which has a plurality of faces (56-66) and opposite ends. The drill steel has one portio n (74) adjacent one of the opposite ends thereof and an intermediate (76) portion spaced apart from the one portion. The drill steel further has one transition portion (78) between the one portion and the intermediate portion so as to join the one portion and the intermediate portion. The one portion of the drill steel presents a first orientation of the faces. The intermediate portion of the drill steel presents a second orientation of the faces. The o ne transition portion (78) of the drill steel presents a twisted orientation of the faces comprising a generally constant twist of the faces from the first orientation of the one portion to the second orientation of the intermediate portion. There is a chuck (26) for attachment to the drill steel through engagement with the transition portion of the drill steel.
Author CONDON, GARY J
STATLER, DANIEL C
MASSA, TED R
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Snippet A drill steel-chuck assembly which includes a drill steel (26) which has a plurality of faces (56-66) and opposite ends. The drill steel has one portio n (74)...
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SourceType Open Access Repository
SubjectTerms EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
Title LOCKABLE DRILL STEEL AND CHUCK ASSEMBLY
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