Patent ID: 8826481
Filing Date: 2014-09-09
Classification: E01C,E01D

Abstract:
1. A waterproof expansion joint for use on a deck joint defined by at least two girders, the waterproof expansion joint comprising: a ballast protection plate dimensioned such that when installed over a deck joint the ballast protection plate inhibits ballast from falling into a deck joint; at least one locating device positioned with respect to the ballast protection plate such that the locating device limits lateral movement of the ballast protection plate with respect to the deck joint; a flexible sealing member dimensioned to be installed below the ballast protection plate and span the deck joint; wherein the flexible sealing member comprises at least one flange portion, each flange portion dimensioned to be attached to a girder; wherein the flexible sealing member comprises at least one expansion feature; and wherein the at least one expansion feature comprises a shape preformed into the flexible sealing member, wherein the at least one expansion feature being installed over a deck joint and extending down into the deck joint, and wherein the at least one expansion feature can deflect, such that the width of the flexible sealing member can be varied depending on the width of the deck joint without compromising the structural integrity or waterproof nature of the flexible sealing member.