Cover system with gasket system therefor

1. A gasket system for sealing a cover about an opening having a gasket seat thereabout, the gasket seat having a first number of fastener receiving elements intended to receive a fastener that is greater than a second number of fasteners used with the cover, resulting in a third number of fastener-free receiving elements in the gasket seat, the gasket comprising:

a body having a first shape configured to mate with a sealing surface of at least one of the gasket seat and the cover, the body having an open center;

a fastener receiving opening in the body for each of the second number of fasteners used with the cover; and

a raised rib extending from a surface of the body adjacent to at least one of the third number of fastener-free receiving elements in the gasket seat.

2. The cover system of claim 1 , further comprising a contour in the body adjacent to and accommodating each of the third number of fastener-free receiving elements.

3. The cover system of claim 2 , wherein the at least one raised rib is linearly contoured to accommodate the respective contour of the at least one of the third number of fastener-free receiving elements.

4. The cover system of claim 2 , wherein the first shape of the body of the gasket is substantially rectangular and includes:

a corner fastener receiving opening in each corner of the rectangle and a long-side fastener receiving opening positioned within opposing long sides of the rectangle; and

a contour adjacent at least one of the third number of fastener-free receiving elements between adjacent fastener receiving openings.

5. The cover system of claim 1 , wherein the gasket includes a non-stick coating thereon.

6. The cover system of claim 1 , wherein the raised rib further extends about an entirety of the open center of the gasket.

7. The cover system of claim 1 , wherein the at least one raised rib is linearly contoured to accommodate a corresponding one of the third number of fastener-free receiving elements in the gasket seat.

8. The cover system of claim 1 , wherein the first number of fastener receiving elements is 12, the second number of fasteners used with the cover is 6, and the third number of fastener-free receiving elements in the gasket seat is 6.

9. The cover system of claim 1 , further comprising the cover having a second shape configured to seal with the gasket.

10. A cover system for sealing a cover about an opening having a gasket seat thereabout, the gasket seat having a first number of fastener receiving elements intended to receive a fastener that is greater than a second number of fasteners used with the cover, resulting in a third number of fastener-free receiving elements in the gasket seat, the cover system comprising:

a body having a first shape configured to mate with a sealing surface of at least one of the gasket seat and the cover, the body having an open center;

a fastener receiving opening in a tab protruding outwardly from the body for each of the second number of fasteners used with the cover; and,

a raised rib extending from a surface of the body adjacent to at least one of the third number of fastener-free receiving elements in the gasket seat.

11. The cover system of claim 10 , further comprising a contour in the body adjacent to and accommodating each of the third number of fastener-free receiving elements.

12. The cover system of claim 11 , wherein the at least one raised rib is linearly contoured to accommodate the respective contour of the at least one of the third number of fastener-free receiver elements.

13. The cover system of claim 11 , wherein the first shape of the body of the gasket is substantially rectangular and includes:

a corner fastener receiving opening in each corner of the rectangle and a long-side fastener receiving opening positioned within opposing long sides of the rectangle; and

a contour adjacent at least one of the third number of fastener-free receiving elements between adjacent fastener receiving openings.

14. The cover system of claim 10 , wherein the gasket includes a non-stick coating thereon.

15. The cover system of claim 10 , wherein the raised rib further extends about an entirety of the open center of the gasket.

16. The cover system of claim 10 , wherein the at least one raised rib is linearly contoured to accommodate a corresponding one of the third number of fastener-free receiving elements in the gasket seat.

17. The cover system of claim 10 , wherein the first number of fastener receiving elements is 12, the second number of fasteners used with the cover is 6, and the third number of fastener-free receiving elements in the gasket seat is 6.

18. A gasket system for sealing a cover about an opening having a gasket seat thereabout, the gasket seat having a first number of fastener receiving elements intended to receive a fastener that is greater than a second number of fasteners used with the cover, resulting in a third number of fastener-free receiving elements in the gasket seat, the gasket comprising:

a body having a first shape configured to mate with a sealing surface of at least one of the gasket seat and the cover, the body having an open center;

a fastener receiving opening in the body for each of the second number of fasteners used with the cover; and

a raised rib extending from a surface of the body adjacent to at least one of the third number of fastener-free receiving elements in the gasket seat, the raised rib having an open shape.

19. The gasket system of claim 18 , wherein the body has a tab protruding outwardly, and the fastener receiving opening is in the tab protruding outwardly.