| 摘要 |
Elongated, hollow elastomer seals particularly useful for the sealing of concrete pavement joints, bridge deck joints, etc. against intrusion by liquids and incompressible solids and embodying an elongated, preferably transversely concave top wall; an elongated bottom wall; substantially flat, elongated side walls; and an internal web structure embodying a vertical web substantially midway between the side walls with the lower end of the vertical web spaced from the bottom wall and at least two pairs of lateral webs extending from opposite sides of the vertical web, at least one of which pairs undergoes a toggle-like action when the seal is laterally compressed.
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