US3634896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mattress spring assembly
Assignee: Flex O Lators Inc
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Filing: 1970-01-12
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Granted: 1972-01-18
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Expires: 1990-01-12
Abstract
Abstract A mattress spring assembly consisting of a spring base including relatively widely spaced spring members defining a generally planar load-supporting surface, and a padding insulator sheet reinforced by relatively closely spaced wires overlying said spring base, said spring base and insulator sheet being so interrelated that the latter substitutes for and performs the functions of certain elements of the former, such as the border wires and interspring ties normally forming elements of the spring base, thereby permitting a simpler, more economical overall combination.
Inventors
- 👤 Thomas W Platt
- 👤 Robert D Macmorran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:32
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/04; A47C27/045; A47C27/0456; A47C23/00; A47C23/04; A47C23/043
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
148 words
A mattress spring assembly comprising: a. a spring base consisting of a plurality of relatively widely spaced apart spring units arranged to define, in skeleton form, a generally rectangular load-supporting surface having side and end marginal edges. b. a padding insulator sheet including a pair of generally parallel resilient side strands, and a series of relatively closely spaced apart resilient cross strands extending between and affixed to said side strands, said side strands overlying the side marginal edges of said spring base whereby to form the sole marginal edge wires for said spring base, and said cross strands overlying the load-supporting surface of said spring base, c. a pair of end border strands overlying and defining the end marginal edges of said spring base, and d. connecting means joining said side strands and end border strands to the spring units adjacent said marginal edges of said spring base.
Claim 2
Dependent Claim
148 words
A mattress spring assembly comprising: a. a spring base consisting of a plurality of relatively widely spaced apart spring units arranged to define, in skeleton form, a generally rectangular load-supporting surface having side and end marginal edges. b. a padding insulator sheet including a pair of generally parallel resilient side strands, and a series of relatively closely spaced apart resilient cross strands extending between and affixed to said side strands, said side strands overlying the side marginal edges of said spring base whereby to form the sole marginal edge wires for said spring base, and said cross strands overlying the load-supporting surface of said spring base, c. a pair of end border strands overlying and defining the end marginal edges of said spring base, and d. connecting means joining said side strands and end border strands to the spring units adjacent said marginal edges of said spring base.
Claim 3
Dependent Claim
29 words
The structure as recited in claim 1 with the addition of second connecting means attaching certain of said cross strands to said base spring units intermediate said side strands.
Claim 4
Dependent Claim
35 words
The structure as recited in claim 1 wherein said side strands each comprise a spring steel wire core having a sheath of soft, indentable material, each of said cross strands being secured about said sheath.
Claim 5
Dependent Claim
30 words
The structure as recited in claim 1 wherein said end border strands constitute extensions of said side strands, angled to extend along the end marginal edges of said spring base.
Claim 6
Dependent Claim
42 words
The structure as recited in claim 1 with the addition of one or more intermediate strands of flexible material disposed between and generally parallel to said side strands, and connected to each of said cross strands at its point of intersection therewith.
Claim 7
Dependent Claim
29 words
The structure as recited in claim 5 with the addition of means affixing each end of each of said intermediate strands to the adjacent of said end border strands.
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) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |