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US3833951A Expired / Lapsed US ⏱️ 0.0 years remaining

Cigarette burn resistant mattresses having aluminized polyurethane foam layer

Assignee: Rohm and Haas Co
•
Filing: 1973-04-02
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Granted: 1974-09-10
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Expires: 1993-04-02
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Abstract

Abstract This invention is concerned with flameproofed mattresses, pillows and sleeping bags, pads, cushions for chair or sofas, and so on. The flameproofed materials of the present invention may be formed of (1) a close-woven fabric attached to (2) a thick layer (e.g., 0.1-1 inch) of resilient self-extinguishing polyruethane cushioning foam having (3) a metallized heat-conductive layer, such as of aluminum, which dissipates heat rapidly, thereupon, the metallized foam being secured to (4) filling or padding with (5) a backing fabric secured thereto. The parts are suitably locally secured together by tying means such as stitching, tufting, dielectric welding or the like. The object is to protect the main body of highly combustible filler material in cushions, pillows, mattresses, sofas, upholstered chairs, and the like from fire in case of the dropping of a match, cigarette, or the like on the cover fabric or ticking by someone, such as a careless smoker. Even though the foam is self-extinguishing relative to a lighted cigarette, when not compressed, when it is compressed by tying as by stitching, the heat may be conducted therethrough and ignite the filling or stuffing, if no metal layer is present.

Inventors

  • 👤 M Hurwitz

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 01:46
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/22; B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/245; B32B27/00; B32B27/12; B32B5/02; B32B5/024; B32B5/18; B32B5/26; D; D06; D06M; D06M23/00; D06M23/16; D06M23/18; D06Q; D06Q1/00; D06Q1/04; B32B38/00; B32B2038/0052; B32B2038/008; B32B2255/00; B32B2255/10; B32B2255/102; B32B2255/20; B32B2255/205; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0278; B32B2305/00; B32B2305/02; B32B2305/022; B32B2305/10; B32B2305/18; B32B2305/188; B32B2307/00; B32B2307/30; B32B2307/306; B32B2307/3065; B32B2375/00; B32B2601/00; Y; Y10; Y10S; Y10S297/00; Y10S297/05; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24521; Y10T428/24529; Y10T428/24595; Y10T428/24603; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/24999

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 15 words
An article according to claim 1 in which the cushioning foam is a polyurethane foam.
Claim 2
Dependent Claim 14 words
An article according to claim 1 in which the metal-containing layer comprises crushed foam.
Claim 3
Dependent Claim 20 words
An article according to claim 1 in which the thickness of the metal-containing coating is from 0.5 to 6 mils.
Claim 4
Dependent Claim 35 words
An article according to claim 2 in which the metal in the metal-containing layer is selected from the group consisting of aluminum, nickel, silver, bismuth, antimony, tin, gold, stainless steel, brass, bronze and Wood''s metal.
Claim 5
Dependent Claim 28 words
An article according to claim 5 in which the metal is aluminum having a particle size in the range of 0.02 to 0.1 mm. in an organic binder.
Claim 6
Dependent Claim 13 words
An article according to claim 6 in which the metal is anodized aluminum.
Claim 7
Dependent Claim 29 words
An article according to claim 5 in which the metal is stainless steel having a particle size in the range of 0.02 to 0.1 mm. in an organic binder.
Claim 8
Dependent Claim 40 words
An article according to claim 5 in which the metal-containing layer is adhered to said cushioning foam on the side thereof which is adjacent to the filling or padding and in which said latter material is formed of combustible fibers.

References Cited (Backward Citations)

US2632187A Cited
US3332092A Cited
US3274625A Cited
US3616171A Cited
US3653942A Cited
US3767452A Cited

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

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