Foundation unit and method of making the same

Details Foundation unit and method of making the same Foundation unit and method of making the same

1996-03-05

1997-04-22

Oberleitner, Robert J.

Spring devices

Spring panel

Spring means spacing loading surface vertically from plane...

5247, 5276, F16F 300, A47C 2500

Patent

active

056223579

ABSTRACT:
A foundation unit which can be relaxed in a compact configuration for shipping and which can be then elevated to an expanded state for completion. The foundation unit includes a rectangular grid wire top bearing structure, a rigid bottom substructure, and a series of spaced, parallel intermediate rows of wire supports. The wire supports are oriented in pairs, with the bottom attachment segments of the wire supports being adjacent one another and secured to the bottom substructure. The top attachment segments of the wire supports are spaced from one another such that the wire supports of each pair form a generally V-shaped configuration. The wire supports are sandwiched between spaced longitudinal grid wires of the top bearing structure so that, prior to being secured to the bottom substructure, the wire supports are pivotally secured to the top bearing structures so that the foundation unit can be selectively relaxed for storage or shipping.

REFERENCES:
patent: 819671 (1906-05-01), Pennepacker
patent: 3990121 (1976-11-01), Whitaker
patent: 4377279 (1983-03-01), Schulz, Jr. et al.
patent: 4903949 (1990-02-01), Schulz, Jr.
patent: 5052064 (1991-10-01), Hagemeister et al.
patent: 5197155 (1993-03-01), Ogle et al.
patent: 5346188 (1994-09-01), Rodgers et al.
patent: 5370374 (1994-12-01), Rodgers et al.

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