Stiffening flanges for deformation resistance of manhole cover s

Details Stiffening flanges for deformation resistance of manhole cover s Stiffening flanges for deformation resistance of manhole cover s

1992-03-04

1992-09-29

Britts, Ramon S.

Road structure, process, or apparatus

Pavement

Vault cover-closure

E02D 2914

Patent

active

051509849

ABSTRACT:
An improvement for increasing the resistance of manhole cover supports to deformation is provided which comprises equipping the upper edge or flange thereof with a succession of pressed-in gussets, the troughs of which slope with respect to the keeper of said cover support or equipping a keeper wall thereof with a succession of pressed-out gussets.

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