Rock drill bit

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8960336
APP PUB NO 20110168453A1
SERIAL NO

13120236

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A rock drill bit having a shank fitted with a clamping end and a drilling tip located from the clamping end. The drilling tip has at least three blades and a central zone centered on a drill bit axis. The blades each include on a top side thereof a lip constituted by a leading chipping face and a trailing flank. The lips substantially converge onto each other within a the central zone of the drilling tip, wherein in the central zone, a long lip of the lips runs through the drill bit axis and has a commensurate overshoot segment extending beyond the drill bit axis.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
HELLER TOOLS GMBH49413 DINKLAGE

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Albers, Hermann Dinklage, DE 2 62
Elmers, Sven Dinklage, DE 2 62
Frommeyer, Joerg Wallenhorst, DE 4 70
Kersten, Heinrich Verden, DE 9 151
Lampe, Ranier Dinklage, DE 1 56

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