US3833948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Box spring assembly
Assignee: Leggett and Platt Inc
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Filing: 1973-03-01
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Granted: 1974-09-10
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Expires: 1993-03-01
Abstract
Abstract A box spring assembly including a wooden frame with a plurality of spring members arranged on the frame to define a loadsupporting area having side and marginal edges. Each of the spring members is defined by an integral wire having a straight section with a fishmouth section at each end thereof. The spring members may be of various configurations but the spring members are isolated from one another and a grid is disposed over and interconnects the spring members. The grid is defined by a first plurality of parallel wires and a second plurality of parallel wires extending transversely and crossing the first plurality of wires. The wires of the grid are clipped to the various spring members. The grid also includes a border wire defining the periphery of the load-supporting area and a plurality of auxiliary spring members are disposed about the periphery of the load-supporting area for supporting the border wire.
Inventors
- 👤 Z Surletta
- 👤 C Klicki
- 👤 R Nowack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:18
CPC Classifications
A; A47; A47C; A47C23/00; A47C23/30; A47C23/32; A47C23/04
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
111 words
A spring assembly comprising; frame means, a plurality of spring members supported on said frame to define a supporting area, at least some of said spring members being defined by an integral wire having a straight section and a fishmouth section at least at one end thereof, a grid defined by a first plurality of spaced parallel wires and a second plurality of spaced parallel wires extending transversely of said first plurality of wires, one of said fishmouth and straight sections of each of said spring members including a straight portion in parallel abutting relationship with one of said wires, and connecting means connecting said straight portion to its abutting wire.
Claim 2
Dependent Claim
111 words
A spring assembly comprising; frame means, a plurality of spring members supported on said frame to define a supporting area, at least some of said spring members being defined by an integral wire having a straight section and a fishmouth section at least at one end thereof, a grid defined by a first plurality of spaced parallel wires and a second plurality of spaced parallel wires extending transversely of said first plurality of wires, one of said fishmouth and straight sections of each of said spring members including a straight portion in parallel abutting relationship with one of said wires, and connecting means connecting said straight portion to its abutting wire.
Claim 3
Dependent Claim
22 words
An assembly as set forth in claim 1 wherein said first plurality of wires are welded to said second plurality of wires.
Claim 4
Dependent Claim
20 words
An assembly as set forth in claim 1 wherein said first plurality of wires are evenly spaced from one another.
Claim 5
Dependent Claim
20 words
An assembly as set forth in claim 3 wherein said second plurality of wires are evenly spaced from one another.
Claim 6
Dependent Claim
24 words
An assembly as set forth in claim 1 wherein said first plurality of wires are spaced farther apart than said second plurality of wires.
Claim 7
Dependent Claim
22 words
An assembly as set forth in claim 5 wherein said first plurality of wires are welded to said second plurality of wires.
Claim 8
Dependent Claim
19 words
An assembly as set forth in claim 1 wherein said grid represents the sole means interconnecting said spring members.
Claim 9
Dependent Claim
26 words
An assembly as set forth in claim 1 wherein each fishmouth section includes a segment connected to said straight section, said segment defining said straight portion.
Claim 10
Dependent Claim
23 words
An assembly as set forth in claim 8 wherein said straight portion of each spring unit is parallel to the straight section thereof.
Claim 11
Dependent Claim
23 words
An assembly as set forth in claim 9 wherein said straight portion of each spring unit is offset from the straight portion thereof.
Claim 12
Dependent Claim
23 words
An assembly as set forth in claim 8 wherein said straight portion of each spring unit is transverse to the straight section thereof.
Claim 13
Dependent Claim
16 words
An assembly as Set forth in claim 1 wherein said straight section defines said straight portion.
Claim 14
Dependent Claim
61 words
An assembly as set forth in claim 1 wherein each of said fishmouth sections includes a generally U-shaped portion having upper and lower legs and extending downwardly from said straight section, and a V-shaped portion having a torsion bar and upper and lower spacer bars extending from opposite ends thereof, said upper spacer bar being integrally connected to said lower leg.
Claim 15
Dependent Claim
16 words
An assembly as set forth in claim 13 wherein said upper leg comprises said straight portion.
Claim 16
Dependent Claim
42 words
An assembly as set forth in claim 13 wherein each fishmouth section includes a segment connected to said straight section, said segment including said upper leg and a connecting length extending transversely of and between said upper leg and said straight section.
Claim 17
Dependent Claim
23 words
An assembly as set forth in claim 1 wherein said grid includes a border wire extending about the periphery of said supporting area.
Claim 18
Dependent Claim
25 words
An assembly as set forth in claim 16 including a plurality of auxiliary spring members disposed about said periphery and connected to said border wire.
Claim 19
Dependent Claim
25 words
An assembly as set forth in claim 1 wherein said spring members are disposed in isolated noncontacting relationship with all of the remaining spring members.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-09 | 1978-03-11 | 1978-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-09 | 1982-03-11 | 1982-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-09 | 1986-03-11 | 1986-09-10 | $7700.00 | Window Closed / Lapsed |