Upholstery coil spring

Details Upholstery coil spring Upholstery coil spring

1974-12-23

1976-03-09

Marbert, James B.

Spring devices

Spring panel

Spring panel comprises vertically oriented compressible coil...

5256, F16F 304

Patent

active

039427765

ABSTRACT:
A tempered resilient wire forms an upholstery coil spring which has a plurality of interconnected turns, with the top turn being a closed flat loop extending upwardly from the rear of the spring at a given angle to the horizontal, a second turn located immediately below the top turn and being inclined upwardly from the rear of the spring at an inclination angle which is less than the inclination angle of the top turn, a plurality of intermediate turns located below the second turn, and a flat base turn for resting on a support surface.

REFERENCES:
patent: 2066861 (1937-01-01), Simmons
patent: 3479672 (1969-11-01), Haney et al.

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