Support arm and rotary cone for modular drill bit

- Dresser Industries, Inc.
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Description

FIG. 1 is a perspective view of the support arm and rotary cone for modular drill bit showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a first side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a back elevational view thereof;

FIG. 6 is a second side elevational view thereof; and,

FIG. 7 is a bottom plan view thereof.

Referenced Cited
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Other references
  • Security/Dresser "Security Oilfield Catalog" Rock bits, Diamond Products, Drilling Tools, Security Means Technology, Nov. 1992. U.S. Patent Application No. 08/478455, filed Jun. 6, 1995, entitled Rotary Cone Drill Bit Modular Arm. U.S. Patent Application No. 29/043782, filed Sep. 12, 1995, entitled rotary Cone Drill Bit. U.S. Patent Application No. 29/033599, filed Jan. 17, 1995, entitled rotary Cone Drill Bit. International Patent Application No. PCT/US95/10015 International Search Report, dated Juan. 4, 1996. "State of the Science in Rock Bit Techn." by Carlos Fernandez, SPACEBIT, Aug. 8, 1991. U.S. Patent Application 8/422,140 filed Apr. 13, 1995 and entitled Rotary Drill Bit And Method For Manufacture And Rebuild. U.S. Patent Application Ser. No. 08/287,457, filed Aug. 8, 1994 and entitled Rock Bit With enhanced Fluid Return Area. U.S. Patent Application Ser. No. 08/287,446, filed Aug. 8, 1994 and entitled Modular Rotary Drill Bit. U.S. Patent Application Ser. No. 08/287,441, filed Aug. 8, 1994 and entitled Rotary Cone Drill Bit With Improved Support Arms. U.S. Patent Application Ser. No. 08/287,390, filed Aug. 8, 1994 and entitled Rotary Cone Drill Bit And Method For Manufacture And Rebuild. U.S. Patent Application Ser. No. 08/351,019 filed Dec. 7, 1994 and entitled Rotary Cone Drill Bit And Method For Enhanced Lifting Of Fluids And Cuttings. U.S. Patent Application Ser. No. 08/350,910 filed Dec. 7, 1994 and entitled Rotary Cone Drill Bit With Angles Ramps. U.S. Design Patent Application filed Jan. 16, 1995 and entitled Rotary Drill Bit.
Patent History
Patent number: D372253
Type: Grant
Filed: Jan 17, 1995
Date of Patent: Jul 30, 1996
Assignee: Dresser Industries, Inc. (Dallas, TX)
Inventors: Alan D. Huffstutler (Grand Prairie, TX), Harry M. Campos, Jr. (Grand Prairie, TX), Michael S. Beaton (Cedar Hill, TX), Jay S. Bird (Waxahachie, TX)
Primary Examiner: Antoine Duval Davis
Law Firm: Baker & Botts, L.L.P.
Application Number: 0/33,630
Classifications
Current U.S. Class: Cutting Tool, E.g., Drill Bit, Etc. (D15/139)