Felt Products Mfg. Co.

Lawrence F Pyle

John F Brady

A sealing system and method for sealing an expansion joint in a roadway gap. Channel-shaped members are mounted at each side of the joint. A seal having a bead at each side is sealingly clamped by a retainer bar against the channel member to provide a seal across the roadway gap. The retainer bar is maintained in a clamping position against the seal bead by retainer plates and by a keeper pin which overlies the bar. The bar is forced downwardly into sealing engagement with the bead to permit positioning of the keeper pin over the retainer bar to hold it in clamping and sealing engagement.

Expansion joint sealing apparatus and method for sealing same

A large motion expansion joint having a plurality of parallel load-carrying modules which are disposed transverse to the direction of the roadway. The load-carrying modules generally span the expansion gap between adjacent structural members to support vehicular traffic thereon and include a first end module mounted to an edge of one of the structural members, a second end module mounted to an edge of the other structural member and at least one intermediate module. The intermediate modules carry a plurality of spaced sleeve-like beam guides which are aligned with spaced elongated sleeve-like support beam housings secured to the second end module. A plurality of support beams are fixed to the first end module and slide into the beam guides and housings generally in the direction of the roadway so as to support the intermediate load-carrying modules. During expansion and contraction of the expansion gap, the load-carrying modules slide upon the support beams and move toward and away from each other as the gap width changes. The spacing between modules is positively proportionally maintained during expansion and contraction by linkages interconnecting each adjacent pair of load-carrying modules. Sealing means are mounted upon the load-carrying modules to provide a roadway over the gap.

Large motion expansion joint

A method and gap sealing assembly for sealing adjacent roadway slabs at the gap. Gap sealing members bridging the gap are positioned in end-to-end array. A resistance heater is positioned adjacent elastomeric end surfaces of the members and a rubber-like heat activatable bonding agent is positioned between the end surfaces. When the heater is energized, the end surfaces are bonded to each other to form a seal in situ.

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Des Plaines, IL, United States of America

Lawrence F Pyle