Patent US4469739A successfully refreshed from Google Patents.
US4469739A
Expired / Lapsed
US
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Oriented woven furniture support material
Assignee: EIDP Inc
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Filing: 1983-07-26
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Granted: 1984-09-04
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Expires: 2003-07-26
Abstract
Abstract Oriented woven furniture support materials made in part from elastomer monofilament and in part from yarn have been found to possess a unique combination of properties including high strength, low creep and good flexibility. These furniture support materials can be made by weaving of the elastomer in a first direction and the yarn in a second direction perpendicular to the first direction followed by heat-setting of the woven material.
Inventors
- 👤 James Gretzinger
- 👤 Robert L. Rackley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:45
CPC Classifications
D; D03; D03D; D03D15/00; D03D15/20; D03D15/283; D03D15/50; D03D15/573; D03D15/587; D10; D10B; D10B2201/00; D10B2201/01; D10B2201/02; D10B2321/00; D10B2321/02; D10B2321/10; D10B2321/101; D10B2331/00; D10B2331/02; D10B2331/04; D10B2331/06; D10B2331/10; D10B2401/00; D10B2401/04; D10B2401/041; D10B2401/06; D10B2401/063; D10B2503/00; D10B2503/06; D10B2505/00; D10B2505/08; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24826; Y10T442/00; Y10T442/30; Y10T442/3146; Y10T442/3154
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
128 words
A furniture support material in a woven configuration comprising crossed strands in a first direction and in a second direction perpendicular to the first direction, wherein the strands in the first direction comprise oriented thermoplastic elastomer monofilament selected from the group consisting of copolyetheresters, polyurethanes and polyesteramides, and the strands in the second direction comprise yarn, which crossing strands are affixed to each other at the points at which they cross, which furniture material has a tear resistance value of at least 0.40 joules/meter-gram/meter 2 , has a dead load static creep K-factor value of less than 6000 percent change in deflection-grams/meter 2 , has a deflection value of 1.25-7.50 cm, and has a dynamic creep K-factor value of less than 5000 percent change in deflection-grams/meter 2 .
Claim 2
Dependent Claim
128 words
A furniture support material in a woven configuration comprising crossed strands in a first direction and in a second direction perpendicular to the first direction, wherein the strands in the first direction comprise oriented thermoplastic elastomer monofilament selected from the group consisting of copolyetheresters, polyurethanes and polyesteramides, and the strands in the second direction comprise yarn, which crossing strands are affixed to each other at the points at which they cross, which furniture material has a tear resistance value of at least 0.40 joules/meter-gram/meter 2 , has a dead load static creep K-factor value of less than 6000 percent change in deflection-grams/meter 2 , has a deflection value of 1.25-7.50 cm, and has a dynamic creep K-factor value of less than 5000 percent change in deflection-grams/meter 2 .
Claim 3
Dependent Claim
15 words
The furniture support material of claim 1 wherein the strands are bonded to each other.
Claim 4
Dependent Claim
19 words
The furniture support material of claim 2 wherein the strands are bonded by partial melting of the elastomer strands.
Claim 5
Dependent Claim
42 words
The furniture support material of claim 1 wherein the elastomer strands are of a sheath/core configuration wherein the sheath is a elastomer whose melting point is at least 20 degrees C. lower than the melting point of the elastomer in the core.
Claim 6
Dependent Claim
18 words
The furniture support material of claim 2 wherein the strands are bonded to each other by textile adhesive.
Claim 7
Dependent Claim
26 words
The furniture support material of claim 1 which has been made by weaving of oriented monofilaments of thermoplastic elastomer with yarn in a leno weave configuration.
Claim 8
Dependent Claim
26 words
The furniture support material of claim 1 which has been made by weaving of oriented monofilaments of thermoplastic elastomer with yarn in a plain weave configuration.
Claim 9
Dependent Claim
20 words
The furniture support material of claim 1 wherein the product orientation ratio of the elastomer strands is at least 3.0X.
Claim 10
Dependent Claim
24 words
The furniture support material of claim 1 wherein the warp fiber strands comprise polyester yarn and the fill fiber strands comprise copolyetherester elastomer monofilament.
Claim 11
Dependent Claim
43 words
The furniture support material of claim 9 wherein the copolyetherester elastomer is a sheath/core monofilament wherein the sheath copolyetherester elastomer contains at least 25 weight percent short-chain ester units and the core copolyetherester elastomer contains at least 50 weight percent short-chain ester units.
Claim 12
Dependent Claim
39 words
The furniture support material of claim 1 wherein the dead load static creep K-factor value is less than 3000 percent change in deflection-grams/meter 2 and the dynamic creep K-factor is less than 2500 percent change in deflection-grams/meter 2 .
Claim 13
Dependent Claim
33 words
The furniture support material of claim 1 wherein the dead load static creep is less than 20.0 percent change in deflection and the dynamic creep is less than 22.0 percent change in deflection.
Claim 14
Dependent Claim
33 words
The furniture support material of claim 12 where the dead load static creep is less than 14.0 percent change in deflection and the dynamic creep is less than 8.0 percent change in deflection.
Claim 15
Dependent Claim
20 words
The furniture support material of claim 1 wherein the thermoplastic elastomer monofilament has an M 20 strength of 34-310 MPa.
Claim 16
Dependent Claim
20 words
The furniture support material of claim 1 wherein the thermoplastic elastomer monofilament has an M 20 strength of 103-172 MPa.
Claim 17
Dependent Claim
13 words
The furniture support material of claim 1 wherein the thermoplastic elastomer is polyesterurethane.
Claim 18
Dependent Claim
17 words
The furniture support material of claim 1 wherein the yarn has a tensile strength of 1.5-9.0 grams/denier.
Claim 19
Dependent Claim
17 words
The furniture support material of claim 1 wherein the yarn has a tensile strength of 2.5-7.0 grams/denier.
Claim 20
Dependent Claim
26 words
The furniture support material of claim 1 wherein the yarn is selected from the group consisting of polyester, cotton, nylon, rayon, acrylic, modacrylic and olefin fibers.
Claim 21
Dependent Claim
36 words
The furniture support material of claim 1 wherein the elastomer filaments are spaced such that the number of picks/meter is in the range of ##EQU8## where (a) is the filament cross-sectional area in mm 2 .
Claim 22
Dependent Claim
25 words
The furniture support material of claim 1 wherein the yarn strands are spaced such that the number of strands/meter is in the range of ##EQU9##
Claim 23
Dependent Claim
112 words
The furniture support material of claim 1 wherein: (a) the elastomer is a copolyetherester having an M 20 strength of 103-172 MPa, (b) the yarn is a polyester yarn having a tensile strength of 2.5-7.0 grams/denier, (c) the elastomer filament is a sheath/core monofilament wherein the sheath contains at least 25 weight percent short-chain ester units, the core contains at least 50 weight percent short-chain ester units, and the sheath elastomer has a melting point at least 20° C. lower than the melting point of the core elastomer, (d) the elastomer filaments and the yarn strands are bonded at the points at which they cross by partial melting of the sheath elastomer.
Claim 24
Dependent Claim
12 words
A seat bottom made from the furniture support material of claim 1.
Claim 25
Dependent Claim
12 words
A seat back made from he furniture support material of claim 1.
Claim 26
Dependent Claim
13 words
A bedding support system made from the furniture support material of claim 1.
Claim 27
Dependent Claim
13 words
The furniture support material of claim 1 wherein the thermoplastic elastomer is polyetheresteramide.
References Cited (Backward Citations)
CA621569A
Cited
US2940512A
Cited
US3023192A
Cited
US3084980A
Cited
US3132354A
Cited
US3473576A
Cited
US3651014A
Cited
US3766146A
Cited
US3763109A
Cited
US3992499A
Cited
GB1458341A
Cited
US3915202A
Cited
US4136715A
Cited
US4161500A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-09-04 | 1988-03-05 | 1988-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-04 | 1992-03-05 | 1992-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-04 | 1996-03-05 | 1996-09-04 | $7700.00 | Window Closed / Lapsed |