Leak resistant hinge for use in concrete structure fabrication

Details Leak resistant hinge for use in concrete structure fabrication Leak resistant hinge for use in concrete structure fabrication

1996-03-21

1998-08-04

Wu, David W.

Static molds

Core

Including means to expand or contract core

249178, 249181, 249185, 16221, 16223, 16250, 16387, B28B 730

Patent

active

057888744

ABSTRACT:
A leak resistant hinge is provided for pivotally connecting adjacent concrete form sections to permit angular adjustment and movement of the form sections. The hinge includes first and second L-shaped hinge brackets which pivot about a pivot member to which both brackets are mounted. A gasket member is situated on the exterior of the first and second hinge brackets to seal the hinge while simultaneously permitting the first and second hinge brackets to pivot about the pivot member. Each hinge bracket is mountable to a respective adjacent concrete form section to permit adjacent form sections to pivot as needed to obtain the desired concrete form configuration.

REFERENCES:
patent: 1363651 (1920-12-01), Hutchins
patent: 2504635 (1950-04-01), Bradley
patent: 3815864 (1974-06-01), Loeber
patent: 3934808 (1976-01-01), Aizawa
patent: 3990673 (1976-11-01), Jones et al.

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