Impregnated rotary drag bit

Details Impregnated rotary drag bit Impregnated rotary drag bit

2005-01-18

2005-01-18

Walker, Zakiya (Department: 3672)

Boring or penetrating the earth

Bit or bit element

Cutting edge self-renewable during operation

C175S428000, C175S434000, C175S435000

Reexamination Certificate

active

06843333

ABSTRACT:
A drill bit employing a plurality of discrete, post-like, abrasive, particulate-impregnated cutting structures extending upwardly from abrasive, particulate-impregnated blades defining a plurality of fluid passages therebetween on the bit face. Additional cutting elements may be placed in the cone of the bit surrounding the centerline thereof. The blades may extend radially in a linear fashion, or be curved and spiral outwardly to the gage to provide increased blade length and enhanced cutting structure redundancy. Additionally, discrete protrusions may extend outwardly from at least some of the plurality of cutting structures. The discrete protrusions may be formed of a thermally stable diamond product and may exhibit a generally triangular cross-sectional geometry relative to the direction of intended bit rotation.

REFERENCES:
patent: 4109737 (1978-08-01), Bovenkerk
patent: 4373593 (1983-02-01), Phaal et al.
patent: 4499958 (1985-02-01), Radtke et al.
patent: 4776411 (1988-10-01), Jones
patent: 4794994 (1989-01-01), Deane et al.
patent: 4813500 (1989-03-01), Jones
patent: 4823892 (1989-04-01), Fuller
patent: 4848489 (1989-07-01), Deane
patent: 4889017 (1989-12-01), Fuller et al.
patent: 4907662 (1990-03-01), Deane et al.
patent: 4913247 (1990-04-01), Jones
patent: 4943488 (1990-07-01), Sung et al.
patent: 4991670 (1991-02-01), Fuller et al.
patent: 5033559 (1991-07-01), Fischer
patent: 5049164 (1991-09-01), Horton et al.
patent: 5303785 (1994-04-01), Duke
patent: 5582261 (1996-12-01), Keith et al.
patent: 5722499 (1998-03-01), Nguyen et al.
patent: 5732784 (1998-03-01), Nelson
patent: 6003623 (1999-12-01), Miess
patent: 6009962 (2000-01-01), Beaton
patent: 6021858 (2000-02-01), Southland
patent: 6062325 (2000-05-01), Taylor et al.
patent: 6095265 (2000-08-01), Alsup
patent: 6142250 (2000-11-01), Griffin et al.
patent: 6216805 (2001-04-01), Lays et al.
patent: 6241036 (2001-06-01), Lovato et al.
patent: 6296069 (2001-10-01), Lamine et al.
patent: 6401844 (2002-06-01), Doster et al.
patent: 6458471 (2002-10-01), Lovato et al.
patent: 6510906 (2003-01-01), Richert et al.
patent: 0 418 706 (1987-04-01), None
patent: 0 291 314 (1988-11-01), None
patent: 0 291 314 (1988-11-01), None
patent: 0 720 879 (1996-07-01), None
patent: 0 720 879 (1996-07-01), None
patent: 0 874 128 (1998-10-01), None
patent: 2 375 428 (1976-05-01), None
patent: 2 504 589 (1982-10-01), None
patent: 2 347 957 (2000-09-01), None
patent: 2 353 053 (2001-02-01), None
patent: 2 353 548 (2001-02-01), None
patent: WO 9748877 (1997-12-01), None
patent: WO 9827311 (1998-06-01), None
patent: WO 9936658 (1999-07-01), None
UK Patent Office, Combined Search and Examination Report under Sections 17 & 18(3), dated May 7, 2004.
Search Report from the UK Patent Office, dated Jan. 19, 2004.
UK Examination Report, dated Apr. 29, 2003.
Search Report of Feb. 27, 2001.
Belgian Search Report of Jul. 19, 2002.

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