Woven spring unit

Details Woven spring unit Woven spring unit

1976-02-20

1978-01-17

Nunberg, Casmir A.

Beds

Bedsteads

Having bottom

5257, A47C 2302

Patent

active

040683303

ABSTRACT:
A rigid spring unit is constructed of coil springs and a top grid comprising a plurality of wires, including a first group or pair of parallel wires spaced apart a distance less than the diameter of the top coil of each spring. A second group of three wires, at right angles to the first pair, includes a pair of outside wires spaced apart a distance less than the diameter of the top coil of the spring and a locking wire intermediate the outside wires. The top coil of each spring includes indentations that permit the top coil to be seated from below, in a pre-stressed, woven fashion into the wires of the top grid.

REFERENCES:
patent: 3270354 (1966-09-01), Campa et al.
patent: 3774248 (1973-11-01), Huras
patent: 3789440 (1974-02-01), Garceau
patent: 3864765 (1975-02-01), Anonauer
patent: 3953903 (1976-05-01), Lawrence et al.

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