Overhead door spring shield system

Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Closers – Spring

Patent

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Details

16DIG1, 16 76, 160191, E05F 108

Patent

active

056715005

ABSTRACT:
The invention relates to a design for covering and protecting an overhead door spring assembly from the coercive and deteriorating effects caused by the environment that overhead spring assembley's operate in. This includes preventing rust accumulation and deterioration of the spring assembly. The invention includes a tubular telescopic cover and bearing for a spring assembly that is water resistant and prevents rust from accumulating and dripping on vehicles below the door.

REFERENCES:
patent: 2194111 (1940-03-01), Blodgett
patent: 3285673 (1966-11-01), Dobrikin
patent: 3353817 (1967-11-01), Bollinger
patent: 3860226 (1975-01-01), Hensiek, Jr.
patent: 4082133 (1978-04-01), Halopoff
patent: 4601131 (1986-07-01), Ozols
patent: 4640049 (1987-02-01), Duncan
patent: 4731905 (1988-03-01), Milano et al.
patent: 4757853 (1988-07-01), Price
patent: 4783929 (1988-11-01), Blubaugh
patent: 4969542 (1990-11-01), Athmer et al.
patent: 5239777 (1993-08-01), Husselton
patent: 5419010 (1995-05-01), Mullet

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