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Publication numberUSD384084 S
Publication typeGrant
Application numberUS 29/043,782
Publication dateSep 23, 1997
Filing dateSep 12, 1995
Publication number043782, 29043782, US D384084 S, US D384084S, US-S-D384084, USD384084 S, USD384084S
InventorsAlan Dee Huffstutler, Harry Morales Campos, Jr.
Original AssigneeDresser Industries, Inc.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Rotary cone drill bit
US D384084 S
Abstract  available in
Images(3)
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Claims(1)
  1. The ornamental design for a rotary cone drill bit, as shown.
Description

FIG. 1 is a perspective view of the a rotary cone drill bit showing our new design;

FIG. 2 is a first side elevational view thereof;

FIG. 3 is a second side elevational view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

Non-Patent Citations
Reference
1"State of the Science in Rock Bit Techn." by Carlos Fernandez, SPACEBIT, Aug. 8, 1991.
2International Search Report, International Application No. PCT/US95/10115, dated Jan. 4, 1996.
3Security/Dresser "Security Oilfield Catalog" Rock Bits, Diamond Products, Drilling Tools, Security Means Technology, Nov., 1991-Nov., 1992.
4U.S. Design Patent Serial 29/033,630 filed Jan. 17, 1995 and entitled Support Arm and Rotary Cone for Modular Drill Bit (060220.0174).
5U.S. Patent Application No. 08/422140, filed Apr. 13, 1995, entitled Rotary Drill Bit for Manufacture and Rebuild.
6U.S. Patent Application No. 08/478455, filed Jun. 6, 1995, entitled Rotary Cone Drill Bit Modular Arm.
7U.S. Patent Application Serial No. 08/287,390, filed Aug. 8, 1994 and entitled Rotary Cone Drill Bit and Method for Manufacture and Rebuild (060220.0172).
8U.S. Patent Application Serial No. 08/287,441, filed Aug. 8, 1994 and entitled Rotary Cone Drill Bit With Improved Support Arms (060220.0171).
9U.S. Patent Application Serial No. 08/350,910 filed Dec. 7, 1994 and entitled Rotary Cone Drill Bit With Angled Ramps (060220.0179).
10U.S. Patent Application Serial No. 08/351,019 filed filed Dec. 7, 1994 and entitled Rotary Cone Drill Bit and Method for Enhanced Lifting of Fluids and Cuttings (060220.0178).
11U.S. Patent Application Serial No. 29/033,599 filed Jan. 17, 1995 and entitled Rotary Drill Bit Design (060220.0173).
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Classifications
U.S. ClassificationD15/139