Rotary drill bit with cutting elements having a thin abrasive front layer

United States of America Patent

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Aug 26, 1986
Grant Date
N/A
app pub date
Feb 28, 1985
filing date
Feb 29, 1984

priority date (Note)
Expired

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Abstract

The cutting elements of a rotary drill bit comprise a thin front layer of interbonded abrasive particles, such as diamonds, which layer has a thickness less than 0.45 mm.

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Patent Owner(s)

Patent Owner	Address
SHELL OIL COMPANY	P O BOX 2463 ONE SHELL PLAZA HOUSTON TX 77252-2463

International Classification(s)

E21B:EARTH OR ROCK DRILLING

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Zijsling, Djurre H	Gd Rijswijk, NL	9	226

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Rotary drill bit with cutting elements having a thin abrasive front layer

Number of patents in Portfolio can not be more than 2000

United States of America Patent

06706987

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PATENT NO	4607711
SERIAL NO	06706987
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06706987

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