Preformed expansion joint system
Patent 5171100 Issued on December 15, 1992. Estimated Expiration Date: 
December 12, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 12, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3720474 3822428 3849958 Expansion-contraction joint Expansion joint element Method to manufacture structural members of epoxy plastic Wabocrete FMV Expansion joint Joint bridging construction for structures Expansion joint seals and methods and apparatus for making and installing the same InventorsApplicationNo. 626273 filed on 12/12/1990US Classes:404/68, Strip or filler plus supporting bracket52/396.04, Exposed separator between (1) set or cured concrete, (2) metal, wood, plastic, etc., or (3) prefabricated components403/225, Elastomer interposed between radially spaced members404/57, Sliding plate pair404/67Compound or compositeExaminersPrimary: Cuomo, Peter M.Attorney, Agent or FirmInternational ClassesE01C 011/02E01C 011/08 AbstractAn expansion joint (14) includes a preformed resilient center section (16), which is preferably formed of epoxy modified urethane, having reinforcing members (18) bonded along opposite edges thereof in order to provide a better bond width the adhesive bedding compound (19) and onto the respective structural members (10, 12) while minimizing overall joint with an suspectability to damage and/or cohesive failure. The preformed resilient center section (16) and the recesses of the structural members (10, 12) in which it is received are preferably offset from the gap (24) in an asymmetrical configuration.Other References
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