Stable lifting hook

1. A lifting hook for lifting a drill casing, pipe or tube by engaging an opening in an outer surface of the drill casing, pipe or tube, comprising:

a linear mid-section having a round cross-section;

a handle mounted to or integral with the mid-section;

a first curved section having a round cross-section curving continuously throughout its cross-section as the first curved section extends from the mid-section such that an inner curved side of the first curved section faces the drill casing, pipe or tube and wherein the first curved section ends in a generally flat distal end or toe for inserting into an aperture in the casing, pipe or tube; and

a second curved section having a round cross-section curving continuously throughout its cross-section as the second curved section extends from the mid-section opposite the first curved section; wherein an angle between a longitudinal center line of the linear mid-section and a longitudinal center line of the second curved section is about 150° and wherein the second curved section has a flattened distal end defining an eye or hole.

2. The lifting hook of claim 1 , wherein each of the mid-section and first and second curved sections have a round cross-section of about a 2.25 inch diameter.

3. The lifting book of claim 1 , wherein the inner curved side of the first curved section defines a first radius of curvature, R1 of about 0.875 inches to 1 inch.

4. The lifting hook of claim 1 , wherein each of the mid-section and first and second curved sections have a round cross-section of about 2 inches in diameter.

5. The lifting hook of claim 1 , wherein the eye is sized for and capable of receiving a bolt type anchor shackle or a 4 ¾ ton shackle.

6. The lifting hook of claim 1 , wherein the toe has a beveled inner edge.

7. The lifting hook of claim 1 , wherein the angle between the longitudinal center line of the linear mid-section and the longitudinal center line of the second curved section ranges between 150° and 153°.

8. The lifting hook of claim 1 , wherein the handle and mid-section define a square or rectangular opening.

9. A lifting hook for lifting a drill casing, pipe or tube by engaging an opening in an outer surface of the drill casing, pipe or tube, comprising:

a linear mid-section having a round cross-section;

a first curved section having a round cross-section curving continuously throughout its cross-section as the first curved section extends from the mid-section such that an inner curved side of the first curved section faces the drill casing pipe or tube and wherein the first curved section ends in a generally flat distal end or toe for inserting into an aperture in the casing pipe or tube, wherein an inner side of the first curved section defines a first shaved or indented section; and

a second curved section having a round cross-section curving continuously throughout its cross-section as the second curved section extends from the mid-section opposite the first curved section; wherein an angle between a longitudinal center line of the linear mid-section and a longitudinal center line of the second curved section is about 150° and wherein the second curved section has a flattened distal end defining an eye or hole.

10. A lifting hook for lifting a drill casing, pipe or tube by engaging an opening in an outer surface of the drill casing, pipe or tube, comprising:

a linear mid-section having a round cross-section and a handle mounted to or integral with the mid-section;

a first curved section having a round cross-section curving continuously throughout its cross-section as the first curved section extends from the mid-section such that an inner curved side of the first curved section faces the drill casing, pipe or tube and wherein the first curved section ends in a flat distal end or toe for inserting into an aperture in the casing, pipe or tube;

a second curved section having a round cross-section curving continuously throughout its cross-section as the second curved section extends from the mid-section opposite the first curved section; wherein an angle between a longitudinal center line of the linear mid-section and a longitudinal center line of the second curved section is about 150° and wherein the second curved section has a flattened distal end defining an eye or hole;

wherein the inner curved side of the first curved section defines a first radius of curvature, R1, wherein R1 is about 0.875 inches to 1 inch.

11. The lifting hook of claim 10 , wherein the toe has a beveled inner edge.

12. The lifting hook of claim 10 , wherein the inner curved side of the first curved section defines a first shaved or indented section.

13. The lifting hook of claim 10 , wherein the angle between the longitudinal center line of the linear mid-section and the longitudinal center line of the second curved section ranges between 150° and 153°.

14. The lifting hook of claim 10 , wherein the round cross-section of each of the mid-section and first and second curved sections has a diameter of about 2 inches to about 2.25 inches.

15. A lifting hook for lifting a drill casing, pipe or tube by engaging an opening in an outer surface of the drill casing, pipe or tube, comprising:

a linear mid-section having a round cross-section and a handle mounted to or integral with the mid-section;

a first curved section having a round cross-section curving continuously throughout its cross-section as the first curved section extends from the mid-section such that an inner curved side of the first curved section faces the drill casing, pipe or tube and wherein the first curved section ends in a flat distal end or toe for inserting into an aperture in a drill casing, wherein the toe has a beveled inner edge, wherein an outer surface of the inner curved side the first curved section defines a shaved or indented section;

a second curved section having a round cross-section curving continuously throughout its cross-section as the second curved section extends from the mid-section opposite the first curved section and having a flattened distal end defining an eye or hole, wherein an angle between a longitudinal center line of the linear mid-section and a longitudinal center line of the second curved section ranges between 150° and 153°;

wherein the inner curved side of first curved section defines a first radius of curvature, R1, of about 0.875 inches to 1 inch.

16. The lifting hook of claim 15 , wherein the round cross-section of each of the mid-section and first and second curved sections has a diameter of about 2 inches to about 2.25 inches.

17. The lifting hook of claim 15 , wherein the handle and mid-section define a square or rectangular opening.