Road structure – process – or apparatus – Pavement – Including joint means
Reexamination Certificate
2008-04-08
2008-04-08
Canfield, Robert (Department: 3633)
Road structure, process, or apparatus
Pavement
Including joint means
C052S396050, C404S047000, C014S073500
Reexamination Certificate
active
07354219
ABSTRACT:
A multi-seal waterproof expansion joint for roadways includes an L-shaped load-bearing member mounted to each end of adjacent roadway sections. The lower surface of the horizontal leg of each load-bearing member has a shaped end to receive an insert to provide a retention cavity accessible by an elongated groove. A primary seal has opposite sides captured in the cavities. Vertical leg of a support member is mounted to each of the load-bearing members. Horizontal legs of the support members are spaced from the horizontal leg of its respective load-bearing member to provide a pair of spaced chambers. A secondary seal has opposite sides captured in the chambers. Movement of the roadway sections due to temperature changes compresses and stretches the primary seal while the sides of the secondary seal slide in their respective chamber. The primary seal can be inserted and/or removed from above or below the roadway.
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Cajilig Christine T.
Canfield Robert
The Webb Law Firm
LandOfFree
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