1. A pole foot comprising:
a pole foot base having a first contact surface and a second opposing surface;
a pole receiver extending substantially perpendicularly from the second opposing surface, the pole receiver including a first wall configured to receive a support pole, wherein a width of said pole foot base is substantially larger than a width of said support pole.
2. The pole foot of claim 1, wherein said first wall defines a cavity within which said support pole is received.
3. The pole foot of claim 2, wherein said first wall includes a protrusion substantially complementary to an opening formed in said support pole such that when said protrusion is arranged within said opening, rotation of said support pole relative to the pole foot is limited.
4. The pole foot of claim 2, wherein said pole receiver further comprises a second wall arranged within said cavity, said second wall configured to extend into a hollow interior of said support pole.
5. The pole foot of claim 4, wherein at least one of said first wall and said second wall includes a protrusion substantially complementary to an opening formed in said support pole such that when said protrusion is arranged within said opening, rotation of said support pole relative to the pole foot is limited.
6. The pole foot of claim 1, wherein at least one rib extends from said outer wall of said pole receiver to said pole foot base.
7. The pole foot of claim 1, further comprising at least one textured pad extending through an opening in said pole foot base adjacent said first contact surface.
8. The pole foot according to claim 7, wherein said at least one textured pad is configured to limit movement of the pole foot base relative to an adjacent surface.
9. The pole foot of claim 1, further comprising at least one webbing hole formed in the pole foot base, said at least one webbing hole being configured to receive a webbing strap.
10. The pole foot of claim 1, wherein said pole foot is formed from a plastic material.
11. An anti-pooling system configured to support a cover, comprising:
a support pole;
a first pole foot mounted to a first end of said support pole, said first pole foot including:
a pole foot base having a first contact surface and a second opposing surface;
a pole receiver extending substantially perpendicularly from the second surface, the pole receiver including a first wall configured to receive said support pole, wherein a width of said pole foot base is substantially larger than a width of said support pole.
12. The anti-pooling system of claim 11, further comprising:
at least one webbing hole formed in the pole foot base; and
at least one webbing strap received within said at least one webbing hole.
13. The anti-pooling system of claim 12, further comprising a second pole foot mounted to a second end of said support pole, said second pole foot including:
a pole foot base having a first contact surface and a second opposing surface;
a pole receiver extending substantially perpendicularly from the second surface, the pole receiver including a first wall configured to receive said support pole, wherein a width of said pole foot base is substantially larger than a width of said support pole.
14. The anti-pooling system of claim 13, wherein said first pole foot and said second pole foot are substantially identical.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A compound of the formula
8
wherein
R1 is H or C1-C6alkyl and the C1-C6alkyl moiety is straight or branched;
R2 and R3 are each independently C1-C6alkyl and the C1-C6alkyl moiety is straight or branched; or stereoisomers or pharmaceutically acceptable acid addition salt thereof.
2. The compound of claim 1 wherein R1 is methyl and R2 and R3 are ethyl.