A gasket of elastic material, such as rubber or similar for use in forming a seal between respective sealing surfaces of two members to be joined, the sealing surfaces of the members being moved substantially parallel to each other during installation for squeezing the gasket therebetween. The gasket...http://www.google.com/patents/US4299399?utm_source=gb-gplus-sharePatent US4299399 - Gasket of rubber or similar material
