Patent
   D552628
Priority
Sep 08 2006
Filed
Sep 08 2006
Issued
Oct 09 2007
Expiry
Oct 09 2021
Assg.orig
Entity
unknown
1
36
n/a
The ornamental design for a guard for well operations apparatus, as shown and described.

FIG. 1 is a perspective view of a design for a guard for well operations apparatus according to the present invention.

FIG. 2 is a front view of the guard of FIG. 1.

FIG. 3 is a back view of the guard of FIG. 1, opposite to the first side.

FIG. 4 is a first side view of the guard of FIG. 1.

FIG. 5 is a second side view of the guard of FIG. 1, opposite the first side shown in FIG. 4.

FIG. 6 is a top view of the guard of FIG. 1; and,

FIG. 7 is a bottom view of the guard of FIG. 1.

Lucas, Alan Randall

Patent Priority Assignee Title
D878634, May 12 2018 Steven, Collins Manhole safety cross
Patent Priority Assignee Title
1527178,
1573215,
1961541,
4030364, May 20 1976 Square D Company Safety guard for press brakes
4080846, Mar 03 1977 KASEGA INVESTMENTS LIMITED, Machinery guard
4449596, Aug 03 1982 VARCO I P, INC Drilling of wells with top drive unit
4529045, Mar 26 1984 VARCO INTERNATIONAL, INC , A CA CORP Top drive drilling unit with rotatable pipe support
4605077, Dec 04 1984 VARCO I P, INC Top drive drilling systems
4625796, Apr 01 1985 VARCO I P, INC Well pipe stabbing and back-up apparatus
4759414, Apr 25 1986 W-N Apache Corporation Modular drilling machine and components thereof
4813493, Apr 14 1987 TRITEN CORPORATION, 5915 BRITTMORE ROAD, HOUSTON, TEXAS 77041 A CORP OF TEXAS Hydraulic top drive for wells
4834604, Oct 19 1987 WOOLSLAYER, JOSEPH R ; WOOLSLAYER COMPANIES, INC A CORP OF OK Pipe moving apparatus and method
4872517, Feb 08 1988 TRITEN CORPORATION, A CORP OF TEXAS Rotatable fluid conductor for well apparatus
5107940, Dec 14 1990 Hydratech; HYDRATECHNOLOGY, INC , D B A HYDRATECH, A CORP OF TX Top drive torque restraint system
5433279, Jul 20 1993 Tesco Corporation Portable top drive assembly
6276450, May 02 1999 VARCO I P, INC Apparatus and method for rapid replacement of upper blowout preventers
6530432, Jul 11 2001 TOM C GIPSON D B A NEW FORCE ENERGY Oil well tubing injection system and method
6536520, Apr 17 2000 Wells Fargo Bank, National Association Top drive casing system
6679333, Oct 26 2001 CANRIG DRILLING TECHNOLOGY, LTD Top drive well casing system and method
6688398, Aug 24 1998 WEATHERFORD TECHNOLOGY HOLDINGS, LLC Method and apparatus for connecting tubulars using a top drive
6705405, Aug 24 1998 WEATHERFORD TECHNOLOGY HOLDINGS, LLC Apparatus and method for connecting tubulars using a top drive
6725938, Dec 24 1998 WEATHERFORD TECHNOLOGY HOLDINGS, LLC Apparatus and method for facilitating the connection of tubulars using a top drive
6973979, Apr 15 2003 Savanna Energy Services Corp. Drilling rig apparatus and downhole tool assembly system and method
7040406, Mar 06 2003 TIW Corporation Subsea riser disconnect and method
20030141057,
20030168221,
20040221994,
20050269072,
20050269104,
20050274508,
20050279492,
20050279507,
217242,
41329,
D532798, Jun 07 2004 VARCO I P, INC Guard for derrick apparatus
D533196, Jun 07 2004 VARCO I P, INC Guard for derrick apparatus
//
Executed onAssignorAssigneeConveyanceFrameReelDoc
Sep 08 2006Varco I/P, Inc.(assignment on the face of the patent)
Nov 02 2006LUCAS, ALAN RANDALLVARCO I P, INC ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0185110622 pdf
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