| Publication number | USD523210 S1 | | Publication type | Grant | | Application number | 29/208,313 | | Publication date | 13 Jun 2006 | | Filing date | 24 Jun 2004 | | Priority date | 7 Jun 2004 | | Also published as | | |
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| U.S. Classification | | |
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Block becket for use in a wellbore derrick
US D523210 S1 -
The ornamental design for a block becket for use in a wellbore derrick, as shown and described.
FIG. 1 is a perspective view of a design for a block becket for use in a wellbore derrick according to the present invention.
FIG. 2 is a top view of the block becket of FIG. 1.
FIG. 3 is a first side view of the block becket of FIG. 1.
FIG. 4 is a bottom view of the block becket of FIG. 1.
FIG. 5 is a second side view of the block becket of FIG. 1, opposite the first side shown in FIG. 3.
FIG. 6 is a front view of the block becket of FIG. 1; and,
FIG. 7 is a rear view of the block becket of FIG. 1.
| Reference |
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| 1 | 1000 Ton AC Top Drive-TDS-1000, Varco Systems, 2 pp., 2002. | | 2 | 500 Ton DC Top Drive IDS-1, Varco Systems, 2 pp., 2002. | | 3 | 750 Ton DC Top Drive TDS-45, Varco Systems, 2 pp., 2002. | | 4 | Ac Top Drive Technology Update #2, Varco Systems, 1 p. Prior to 2002. | | 5 | An Overview of Top-Drive Drilling Systems Applications and Experiences, G.I. Boyadjieff, 1ADC/SPE 14716, 8 pp. 1986. | | 6 | Challenger Rig & Mfg., Inc., Doghouse, Composite Catalog 1982-83., p. 1984-C, 1982. | | 7 | Top Drive Drilling System TD 500 PAC Variable Frequency AC Top Drive, National Oilwell, 6 pp., 2002. | | 8 | Varco Pioneers AC Top Drive, Engineering Award Winners, AC Top Drive Technology Update #1. Hart's Petroleum Engineer, 4 pp., Apr. 1997. | | 9 | Varco's Top Drive Systems are advancing the technology of drilling, Varco Systems, 8 pp., 2001. |
| Citing Patent | Filing date | Publication date | Applicant | Title |
|---|
| US7735565 | 22 Oct 2009 | 15 Jun 2010 | Varco I/P, Inc. | Dual-saddle ear support apparatus |
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