Patent ID: 7364166

Claim:
A seal/retainer unit comprising an annular sealing gasket and one or more retaining legs extending generally perpendicularly therefrom; wherein the sealing gasket and the retaining leg(s) are formed in one piece; wherein the sealing gasket has an inner diameter ID gasket , an outer diameter OD gasket , and a thickness T gasket defined by the distance between its upper axial surface and its bottom axial surface; wherein each retaining leg has a length L leg , a width W leg , and a thickness T leg ; and a distal edge which is an exposed edge of the seal/retainer unit; wherein radially outermost surfaces of the retaining leg(s) define an outer diameter OD legs and radially innermost surfaces of the retaining leg(s), including the distal edge(s), define an inner diameter ID legs ; wherein the inner diameter ID legs is not less than the outer diameter OD gasket , whereby a plurality of the seal/retainer units can be nested in a stacked arrangement; wherein the intersection between the bottom axial surface of the gasket and the radially inner surface(s) of the retaining leg(s) is a corner; and wherein the gasket thickness T gasket is approximately equal to the leg thickness T leg .