Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUSD403336 S
Publication typeGrant
Application numberUS 29/080,371
Publication dateDec 29, 1998
Filing dateDec 2, 1997
Publication number080371, 29080371, US D403336 S, US D403336S, US-S-D403336, USD403336 S, USD403336S
InventorsRobert W. Arfele, George A. Espiritu, Ed R. Martin, Jr.
Original AssigneeDresser Industries, Inc.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Five blade drill bit
US D403336 S
Abstract  available in
Previous page
Next page
  1. The ornamental design for a five blade drill bit, as shown and described.

FIG. 1 is a top plan view of a four blade drill bit showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a top, front, left side perspective view thereof.

Non-Patent Citations
1Catalog/Brochure page: "Strata-Cut Drilling-Bits."
2Catalogue/Brochure page: "Diataq DS."
3Catalogue/Brochure page: "Hycalog Introduces the Hybrid-Fishtail." Hycalog.
4Catalogue/Brochure page: "Longer Bit Life and Superior Downhole Performance." Hycalog.
5Catalogue/Brochure page: "PD-7 Rotary and Motor Bit; PD-11 Rotary Bit; PD-11X2 Rotary Bit."
6Catalogue/Brochure page: "Put the Best on the Bottom." BiTech.
7Catalogue/Brochure page: "Smith Diamond's New S-95: The right Direction in Soft Formations." Smith International.
8Catalogue/Brochure page: "The Fast Track to the Bottom Line," p. 8. Strata Bit.
9Catalogue/Brochure pages: "A Strong Line of Natural Diamond and PDC Bits." Smith Diamond.
10Catalogue/Brochure pages: "Bit Description".
11Catalogue/Brochure pages: "Cut Drilling Costs 40 Percent or More with a Strata Bit PDC Bit Tailored to the Formation." Strata Bit.
12Catalogue/Brochure pages: "Diamond Compact Bits (R-Series)," pp. 11-12. Eastman Christensen.
13Catalogue/Brochure pages: "Diamond Compact Bits (R-Series)." Norton Christensen Drilling Products.
14Catalogue/Brochure pages: "Diamond Drill Bits." Cristal Profor. Tarbes, France.
15Catalogue/Brochure pages: "Diamond Products." Smith International, pp. 12-13.
16Catalogue/Brochure pages: "DP6 PDC Drill Bit."
17Catalogue/Brochure pages: "Drilling Bits." Petroleum Diamond Products.
18Catalogue/Brochure pages: "Nortrak Navigation Drilling Systems." pp. 4-5. Nortrak.
19Catalogue/Brochure pages: "Standard PDC Bits; Standard Ringcutter PDC Bits; Gold Series Bits."
20Catalogue/Brochure pages: "TD 2000 Series Drill Bits; PD Steel Body Drill Bits." Diamond Boart Stratabit.
21Catalogue/Brochure pages: "Technical Data." Eastman Christensen.
22Catalogue/Brochure pages: "VIII. Diamond Drilling & Coring Bits," pp. 47-48. Eastman Christensen.
23Catalogue/Brochure pages: 6 3/4 in. DS42H, et al. Hycalog.
24Catalogue/Brochure pages: 8 1/2 in Hornet 4, et al. Reed Tool Company.
25Catalogue/Brochure pages: IADC S946, et al. Smith Diamond.
26Catalogue/Brochure pages: Rock Digger 15, et al.
U.S. ClassificationD15/139