1
Alan D Huffstutler, Harry M Campos Jr: Rotary cone drill bit with angled ramps. Dresser, Baker & Botts L, September 10, 1996: US05553681 (53 worldwide citation)

A rotary cone drill bit for forming a borehole having a bit body with an upper end portion adapted for connection to a drill string. A number of support arms extend from the bit body. Each support arm has an exterior surface. A number of cutter cone assemblies equal to the number of support arms are ...


2
Huffstutler Alan Dee, Campos Harry Morales Jr: Rotary cone drill bit with angled ramps. Dresser, September 24, 1997: EP0796385-A1

A rotary cone drill bit (10) for forming a borehole having a bit body (18) with an upper end portion (20) adapted for connection to a drill string (21). A number of support arms (24) extend from the bit body (18). Each support arm (24) has an exterior surface (38). A number of cutter cone assemblies ...


3
Alan D Huffstutler, Harrym Campos, Jr: Rotary cone drill bit with angled ramps. Dresser, REN GYONGWU, December 24, 1997: CN95196613

A rotary cone drill bit (10) for forming a borehole having a bit body (18) with an upper end portion (20) adapted for connection to a drill string (21). A number of support arms (24) extend from the bit body (18). Each support arm (24) has an exterior surface (38). A number of cutter cone assemblies ...


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Huffstutler Alan Dee, Campos Harry Morales Jr: Rotary cone drill bit with angled ramps. Dresser, FELGER Thomas R, June 13, 1996: WO/1996/018020

A rotary cone drill bit (10) for forming a borehole having a bit body (18) with an upper end portion (20) adapted for connection to a drill string (21). A number of support arms (24) extend from the bit body (18). Each support arm (24) has an exterior surface (38). A number of cutter cone assemblies ...