Spring element for a foundation unit and foundation unit employi

Details Spring element for a foundation unit and foundation unit employi Spring element for a foundation unit and foundation unit employi

1989-10-30

1991-04-09

Halvosa, George E. A.

Spring devices

Spring panel

Spring means spacing loading surface vertically from plane...

5247, 5255, 5476, 267107, 267144, F16F 302, A47K 1318, A47K 1104

Patent

active

050058096

ABSTRACT:
A spring element for a foundation unit and a foundation unit employing the spring element. The foundation unit is of the type having a top wire grid structure and a wooden bottom structure, with a plurality of the spring elements being disposed in space relationship between the grid structure and the bottom substructure. The spring elements include spaced support legs extending from a top portion, with the legs converging toward one another. Each leg has a series of spaced support segments, with the support segments lying generally in a single plane and extending oppositely from one another in a zig-zag fashion between the top portion and an attachment segment. Torsion segments are located between adjacent support segments, with the torsion segments extending generally perpendicular to the plane of the support legs. Suitable links are used to interconnect each torsion segment with its adjacent support segments of each support leg.

REFERENCES:
patent: 2879834 (1959-03-01), Neely
patent: 3953903 (1976-05-01), Lawrence
patent: 4371152 (1983-02-01), Kitchen et al.
patent: 4377279 (1983-03-01), Schulz
patent: 4559654 (1985-12-01), Mizelle
patent: 4684111 (1987-08-01), Hagemeister
patent: 4770397 (1988-09-01), Schulz
patent: 4862531 (1989-09-01), Wells
patent: 4867424 (1989-09-01), Dabney
patent: 4903949 (1990-02-01), Schulz, Jr.

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