Flotation bridge formed from at least one expanding member

Details Flotation bridge formed from at least one expanding member Flotation bridge formed from at least one expanding member

2011-08-16

2011-08-16

Hartmann, Gary S (Department: 3671)

Bridges

Transportable

Floating

Reexamination Certificate

active

07996941

ABSTRACT:
A method for forming a flotation bridge is provided. The method including: forming at least one expandable member used in constructing the flotation bridge, the forming including: expanding a covering to define a cavity; and expanding foam in the cavity in an expansion direction to expand the covering into a predetermined shape.

REFERENCES:
patent: 5107785 (1992-04-01), Baxter
patent: 5911542 (1999-06-01), Obrock et al.
patent: 6021730 (2000-02-01), Carey, II
patent: 6381792 (2002-05-01), Woodfin
patent: 6745714 (2004-06-01), Faber
patent: 6786165 (2004-09-01), Trepanier

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