Pneumatic construction or bridging element

Details Pneumatic construction or bridging element Pneumatic construction or bridging element

2005-04-05

2005-04-05

Pezzuto, Robert E. (Department: 3671)

Bridges

Transportable

Floating

C014S027000

Reexamination Certificate

active

06874192

ABSTRACT:
The structural or bridge element is constructed from a sheath (1) made of textile fabric, preferably of low extensibility, which is covered in an airtight manner with a flexible plastic. Secured longitudinally within the sheath1are a plurality of textile webs of low extensibility in an assembly of mutually parallel planes. The thread profile of first layers4of the fabric of the webs3is turned through approximately 45° in relation to the longitudinal axis of the bridge element. Second layers5, each arranged within the same web3as the first layer4, have a thread profile which is selected to be parallel and perpendicular to the longitudinal axis of the bridge element. Bars6are arranged on the outside of the sheath1, respectively in each plane of the webs3, and are secured within shackles on the sheath1. The sheath1is supplied with compressed air within the range of a few 100 mB. Wherever the bridge element is laid onto the ground of a cutting8, the sheath1is strengthened by means of a protective covering9.

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patent: 1 176 941 (1970-01-01), None
patent: WO-0173245 (2001-10-01), None

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