EP0128680A2
Expired / Lapsed
EP
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Welded wire grid unit for box spring assemblies
Assignee: Hoover Universal Inc
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Filing: 1984-05-18
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Granted: —
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Expires: 2004-05-18
Abstract
Abstract A welded wire grid unit for use in a box spring assembly, the grid unit comprising a rectangular border wire formed of spring steel and a criss-cross network of straight wires encircled by the border wire and arranged in a supporting relation with the border wire. The wire components in the grid are proportional to improve the edge support for the border wire.
Inventors
- 👤 William L. Hancock
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 02:37
CPC Classifications
A; A47; A47C; A47C23/00; A47C23/02; A47C23/30; A47C23/32
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
163 words
In a box spring assembly which includes a generally rectangular horizontal frame and a plurality of wire springs mounted on said frame and extending upwardly therefrom; a grid unit supported on said wire springs and comprising a rectangular border wire having side and end sections and corresponding substantially in overall size and shape to said rectangular frame, said border wire being substantially parallel to and spaced above said frame, a plurality of transversely spaced first wires substantially parallel to said border wire side sections, a plurality of transversely spaced second wires substantially parallel to said border wire end sections and supported on the top sides of and welded to said first wires, said first wires being secured at their ends to said border wire end sections, said second wires being arranged at their ends in a supporting relation with said border wire side sections, said first and second wires being formed of basic wire and being welded together at their points of intersection.
Claim 2
Dependent Claim
163 words
In a box spring assembly which includes a generally rectangular horizontal frame and a plurality of wire springs mounted on said frame and extending upwardly therefrom; a grid unit supported on said wire springs and comprising a rectangular border wire having side and end sections and corresponding substantially in overall size and shape to said rectangular frame, said border wire being substantially parallel to and spaced above said frame, a plurality of transversely spaced first wires substantially parallel to said border wire side sections, a plurality of transversely spaced second wires substantially parallel to said border wire end sections and supported on the top sides of and welded to said first wires, said first wires being secured at their ends to said border wire end sections, said second wires being arranged at their ends in a supporting relation with said border wire side sections, said first and second wires being formed of basic wire and being welded together at their points of intersection.
Claim 3
Dependent Claim
15 words
The structure according to claim 1 wherein said border wire is formed of spring steel.
Claim 4
Dependent Claim
29 words
The structure according to claim 2 wherein said second wires are of a larger diameter than said first wires to provide increased support for said border wire side sections.
Claim 5
Dependent Claim
26 words
The structure according to claim 3 further including spring clip means securing the upper ends of said springs to at least some of said first wires.
Claim 6
Dependent Claim
18 words
The structure according to claim 3 wherein said first and second wires are straight from end to end.
References Cited (Backward Citations)
No citation records indexed.
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