Transportation case

1. A transportation case for an automotive engine, transmission, or the like, comprising:

a one-piece molded plastic base including a substantially uniform wall thickness, comprising an outer peripheral wall connected to a formed bottom to provide an upwardly opening space, the formed bottom defining a wall for receiving an automotive engine, transmission, or the like, and having opposite longitudinally extending feet for resting on a support surface and a forklift opening between the feet;

a one-piece molded plastic lid including a substantially uniform wall thickness comprising an outer peripheral wall connected to a top wall, the lid outer peripheral wall being received on the base outer peripheral wall to close the upwardly opening space;

at least one of the base and lid including plural vertically extending semi-circular stiffening ribs enabling plural transportation cases to be stacked with feet of one transportation case being supported on a top wall of another transportation case.

2. The transportation case of claim 1 wherein the semi-circular stiffening ribs have a radius of less than one inch.

3. The transportation case of claim 1 wherein the semi-circular stiffening ribs have a radius of about three-fourths of an inch.

4. The transportation case of claim 1 wherein the semi-circular stiffening ribs comprise concave ribs.

5. The transportation case of claim 1 wherein the semi-circular stiffening ribs comprise convex ribs.

6. The transportation case of claim 1 wherein the lid and base are generally rectangular and longitudinally extending side walls of the lid outer peripheral wall each include two of the stiffening ribs.

7. The transportation case of claim 6 wherein the two stiffening ribs in the longitudinally extending side walls extend substantially an entire height of the side walls.

8. The transportation case of claim 1 wherein the lid and base are generally rectangular and transversely extending side walls of the lid outer peripheral wall each include two of the stiffening ribs.

9. The transportation case of claim 8 wherein the two stiffening ribs in the transversely extending side walls extend about half of an entire height of the side walls.

10. The transportation case of claim 1 wherein the stiffening ribs are formed in the longitudinally extending feet.

11. The transportation case of claim 1 wherein the lid and base are generally rectangular and longitudinally extending side walls of the lid outer peripheral wall each include two of the stiffening ribs and transversely extending side walls of the lid outer peripheral wall each include two of the stiffening ribs.

12. The transportation case of claim 11 wherein the two stiffening ribs in the longitudinally extending side walls are convex and extend substantially an entire height of the longitudinally extending side walls and the two stiffening ribs in the transversely extending side walls are concave and extend about half of the entire height of the transversely extending side walls.

13. A generally parallelepiped transportation case for an automotive engine, transmission, or the like, comprising:

a one-piece molded plastic base including a substantially uniform wall thickness, comprising a generally rectangular outer peripheral wall connected to a formed bottom to provide an upwardly opening space, the formed bottom defining a wall for receiving an automotive engine, transmission, or the like, and having opposite longitudinally extending feet for resting on a support surface and a forklift opening between the feet, the feet including plural vertically extending semi-circular stiffening ribs;

a one-piece molded plastic lid including a substantially uniform wall thickness comprising a generally rectangular outer peripheral wall connected to a top wall, the lid outer peripheral wall being received on the base outer peripheral wall to close the upwardly opening space, the peripheral wall including plural vertically extending semi-circular stiffening ribs;

the vertically extending semi-circular stiffening ribs enabling plural transportation cases to be stacked with feet of one transportation case being supported on a top wall of another transportation case.

14. The transportation case of claim 13 wherein the semi-circular stiffening ribs have a radius of less than one inch.

15. The transportation case of claim 13 wherein the semi-circular stiffening ribs have a radius of about three-fourths of an inch.

16. The transportation case of claim 13 wherein longitudinally extending side walls of the lid outer peripheral wall each include two of the stiffening ribs.

17. The transportation case of claim 16 wherein the two stiffening ribs in the longitudinally extending side walls extend substantially an entire height of the side walls.

18. The transportation case of claim 13 wherein transversely extending side walls of the lid outer peripheral wall each include two of the stiffening ribs.

19. The transportation case of claim 18 wherein the two stiffening ribs in the transversely extending side walls extend about half of an entire height of the side walls.

20. The transportation case of claim 13 wherein longitudinally extending side walls of the lid outer peripheral wall each include two of the stiffening ribs and transversely extending side walls of the lid outer peripheral wall each include two of the stiffening ribs.

21. The transportation case of claim 20 wherein the two stiffening ribs in the longitudinally extending side walls are convex and extend substantially an entire height of the longitudinally extending side walls and the two stiffening ribs in the transversely extending side walls are concave and extend about half of the entire height of the transversely extending side walls.