Hydraulic buffer hinge

Details Hydraulic buffer hinge Hydraulic buffer hinge

1992-05-07

1995-01-24

Bray, W. Donald

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Checks and closers

Liquid

16 50, 16 76, 16299, 16300, 16301, 16307, 16 82, E05F 320, E05F 112

Patent

active

053832531

ABSTRACT:
A hydraulic buffer hinge for a door comprising a hydraulic buffer mechanism having a piston and a piston rod supported on a spring and received inside a hydraulic oil container to slowing down the return stroke of two swinging plates when the door, onto which the swinging plates are fastened, is closed.

REFERENCES:
patent: 1823263 (1931-09-01), Fabry
patent: 4103392 (1978-08-01), MacDonald
patent: 4485522 (1984-12-01), Chen
patent: 4583262 (1986-04-01), Werner
patent: 4756051 (1988-07-01), Shy
patent: 4825503 (1989-05-01), Shiramasa et al.

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