Springs for sash frame tensioning arrangements

Details Springs for sash frame tensioning arrangements Springs for sash frame tensioning arrangements

1992-04-28

1993-08-03

Oberleitner, Robert J.

Spring devices

Torsion

Coil

16197, 16DIG16, E16F 110, F05D 1300

Patent

active

052322084

ABSTRACT:
A coiled ribbon spring comprising a coiled ribbon spring body and, at a free end thereof, a tongue portion having first engagement means for operative connection to an object to be tensioned, said tongue having at a location between said first engagement means and the coiled ribbon spring body, second engagement means co-operable with first engagement means provided on another coiled ribbon spring. Also an assembly of such springs disposed one above the other working in concert e.g. in pairs.

REFERENCES:
patent: 2609193 (1952-09-01), Foster
patent: 3358403 (1967-12-01), Dinsmore
patent: 3452480 (1969-07-01), Foster
patent: 3475865 (1969-11-01), Arnes
patent: 3869754 (1975-03-01), Foster
patent: 3992751 (1976-11-01), Foster et al.
patent: 4227345 (1980-10-01), Durham, Jr.
patent: 4935987 (1990-06-01), Sterner, Jr.
patent: 4953258 (1990-09-01), Mennuto
patent: 4961247 (1990-10-01), Leitzel et al.
patent: 5157808 (1992-10-01), Sterner, Jr.

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