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US4473614A Expired / Lapsed US ⏱️ 0.0 years remaining

Light-weight durable fire-entry fabric and suit

Assignee: Individual
•
Filing: 1982-05-21
•
Granted: 1984-09-25
•
Expires: 2002-05-21
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Abstract

Abstract In a preferred embodiment, a fire-entry suit includes a substantially one-piece suit having a hood attached at a rear neck-portion and having gloves of which forearm-portions thereof are attachable to forearm-portions of the suit-sleeves by Velcro-like fasteners, with a hood overlay-portion likewise being attachable to chest and shoulder portions of the suit by such fasteners; the shoe-receiving portion is continuous with the legs of the suit. A major novel aspect of the fire-entry suit is the composition of the suit-material, namely being eight layers of separate materials one on top of the other, including an outside water-repellant material coated on the outer-layer of asbestos fabric material, an eighth, inner fabric material of phenol polymer fibers, and a plurality of intermediate alternating layers including an inwardly second fabric material of asbestos and cotton, an inwardly third metalized metal coat fabric of organic fibers typically known as novoloid synthetic coated with aluminum at-least on an outer-most surface thereof, an inwardly fourth repeat of the fabric material of asbestos and cotton fibers, an inwardly fifth repeat of the metalized metal-coated fabric of the typically novoloid synthetic organic fibers, an inwardly sixth repeat of the fabric material of asbestos and cotton fibers, and an inwardly seventh repeat of the metalized metal-coated fabric of the typically novaloid synthetic organic fibers. Inside shoulder suspenders support the suit from about the seat or waist upwardly, and a front uprightly-extending zipper is covered by a flap-over portion of the suit-material which fastens in a flapped-over state by virtue of other Velcro-like fasteners.

Inventors

  • 👤 Peter F. Hockmeyer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 04:50
CPC Classifications
A; A62; A62B; A62B17/00; A62B17/001; B; B32; B32B; B32B19/00; B32B19/06; A41; A41D; A41D31/00; A41D31/04; A41D31/08; A41D31/085; A62B17/003; B32B19/08; B32B5/00; B32B5/02; B32B5/08; B32B5/22; B32B5/24; B32B5/26; B32B2255/00; B32B2255/02; B32B2255/20; B32B2255/205; B32B2307/00; B32B2307/30; B32B2307/306; B32B2307/3065; B32B2307/70; B32B2307/726; B32B2307/7265; B32B2571/00; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31659; Y10T442/00; Y10T442/30; Y10T442/3382; Y10T442/3463

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 100 words
A light-weight fire-entry fabric comprising in combination: an outer layer, intermediate layers, and an inner layer; said outer layer being material consisting essentially of asbestos; said intermediate layers consisting essentially of a plurality of substantially alternating layers of material, comprising substantially an outside layer and an inner-side layer, one of said outside layer and inner-side layer consisting essentially of asbestos and cotton, and the remaining other of said outside layer and said inner-side layer consisting essentially of an outerface coating of reflective metal on sheet material of synthetic organic fibers; said inner layer consisting essentially of the synthetic organic fibers.
Claim 2
Dependent Claim 100 words
A light-weight fire-entry fabric comprising in combination: an outer layer, intermediate layers, and an inner layer; said outer layer being material consisting essentially of asbestos; said intermediate layers consisting essentially of a plurality of substantially alternating layers of material, comprising substantially an outside layer and an inner-side layer, one of said outside layer and inner-side layer consisting essentially of asbestos and cotton, and the remaining other of said outside layer and said inner-side layer consisting essentially of an outerface coating of reflective metal on sheet material of synthetic organic fibers; said inner layer consisting essentially of the synthetic organic fibers.
Claim 3
Dependent Claim 34 words
A light-weight fire-entry fabric of claim 1, in which said inner-side layer further consists essentially of aramid fibers in a blend with said synthetic organic fibers, said synthetic organic fibers being crosslinked phenol polymer.
Claim 4
Dependent Claim 141 words
A light-weight fire-entry fabric of claim 2, in which said outer layer and said alternating layers and said inner layer are held-together by sewn threads, in which said reflective metal matter consists of aluminum metal coating, in which said sheet material consists essentially of aramid fibers blended with the phenol polymer fibers, coated with said aluminum metal coating, in which said outside layer is substantially 100% asbestos woven as a plain weave and having a weight of about 1.35 lbs. per sq. yd., and a guage of about 0.060, and a count of about 20×9, and a warp tensile strength of about 225 lbs. and a fill tensil strength of about 110 lbs., and including an outer coating on said outer layer and in which said outer coating consists of a water-retardant silicone resin, said synthetic organic fibers being novoloid fibers.

References Cited (Backward Citations)

US4113907A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1987-09-25 1988-03-26 1988-09-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1991-09-25 1992-03-26 1992-09-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1995-09-25 1996-03-26 1996-09-25 $7700.00 Window Closed / Lapsed

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