Spring balancer

Details Spring balancer Spring balancer

1981-03-31

1984-01-03

Kazenske, E. R.

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

Closure checks

Spring

E05F 508

Patent

active

044235356

ABSTRACT:
A spring balancer having a compression coil spring and a friction ring. Properties of the spring and a friction force provided by the ring are designed to fit the moment of revolution of a lid that can be opened or closed upward and downward around a revolution or pivot axis. The balancer makes it possible to open or close the lid with a small force and allows stopping of the lid at any position in the whole process of the opening or the closing.

REFERENCES:
patent: 693021 (1902-02-01), Horsfield
patent: 997432 (1911-07-01), Adam
patent: 1123226 (1915-01-01), Berry
patent: 1731561 (1929-10-01), Campbell et al.
patent: 3083400 (1963-04-01), Anderson
patent: 3555591 (1971-01-01), Sogoian
patent: 3711892 (1973-01-01), Tabor
patent: 4048695 (1977-09-01), Juilfs et al.

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