Coil spring and spring assembly

Details Coil spring and spring assembly Coil spring and spring assembly

1981-11-16

1985-08-20

Halvosa, George E. A.

Spring devices

Spring panel

Spring panel comprises vertically oriented compressible coil...

5256, 5269, 5475, F16F 112

Patent

active

045359784

ABSTRACT:
A spring assembly for an innerspring unit, particularly an innerspring mattress, is provided wherein at least a pair of springs are restricted about their adjacent offset portions of adjacent terminal convolutions in one surface of the assembly so that hinging action between the adjacent offset portions is allowed only to a maximum angle of deflection between the offset portions and thereafter, upon further loading, the pair of springs provide a greater resistance to loading than would be realized without restriction of their adjacent offset portions. Also provided is an improved coil spring for such a spring assembly.

REFERENCES:
patent: 1744389 (1930-01-01), Karr
patent: 1798885 (1931-03-01), Karr
patent: 1879172 (1932-09-01), Gail
patent: 1895429 (1933-01-01), Foster
patent: 1907541 (1933-05-01), Heuer
patent: 1913353 (1933-06-01), Hager et al.
patent: 1938489 (1933-12-01), Karr
patent: 1977476 (1934-10-01), Hager et al.
patent: 2516566 (1950-07-01), Hager
patent: 3660854 (1972-05-01), Garceau
patent: 3789440 (1974-02-01), Garceau
patent: 3958610 (1976-05-01), Garceau

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