EP0190838A2 - Vêtement ou enceinte de protection - Google Patents

Vêtement ou enceinte de protection Download PDF

Info

Publication number
EP0190838A2
EP0190838A2 EP86300346A EP86300346A EP0190838A2 EP 0190838 A2 EP0190838 A2 EP 0190838A2 EP 86300346 A EP86300346 A EP 86300346A EP 86300346 A EP86300346 A EP 86300346A EP 0190838 A2 EP0190838 A2 EP 0190838A2
Authority
EP
European Patent Office
Prior art keywords
protective enclosure
enclosure according
vent
protective
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP86300346A
Other languages
German (de)
English (en)
Other versions
EP0190838A3 (fr
Inventor
Nigel Fearn Clive Smith
Edgar Roy Markwell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compton Webb Careerwear Ltd
Original Assignee
Compton Webb Careerwear Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Compton Webb Careerwear Ltd filed Critical Compton Webb Careerwear Ltd
Publication of EP0190838A2 publication Critical patent/EP0190838A2/fr
Publication of EP0190838A3 publication Critical patent/EP0190838A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B17/00—Protective clothing affording protection against heat or harmful chemical agents or for use at high altitudes
    • A62B17/006—Protective clothing affording protection against heat or harmful chemical agents or for use at high altitudes against contamination from chemicals, toxic or hostile environments; ABC suits

Definitions

  • This invention concerns a protective enclosure of the kind (hereinafter termed of the kind referred to) intended to protect an occupant against contaminants such as chemical warfare agents. It may take the form of a garment such as a smock or pair of trousers or be in the form of a bag for transporting a casualty or in the form of a shelter such as a tent.
  • a protective enclosure made from an impermeable material having at least one vent therein through which the enclosure may breathe and at least one aperture therein fitted with a one-way valve arranged to pass air and the occupant's body vapours to atmosphere, there being filter means associated with said vent to decontaminate air passing through said vent into the enclosure.
  • the enclosure may be in the form of a garment such as a smock or pair of trousers or in the form of a bag for transporting a casualty or in the form of a tent or the like.
  • Each said vent may comprise an extended opening covered by a plurality of strips which when the enclosure is in use extend generally horizontally with the lower edge of each strip overlapping the upper edge of the next lower strip to provide a plurality of gill-like apertures through which the enclosure may breathe.
  • Each said strip may be cut full so as to be slightly outwardly bowed to maintain the gill-like apertures open.
  • Each one-way valve may be of the flap-valve type.
  • the smock is integrally formed with a hood portion 11 having a front opening 12 for connection to respirator means and sleeves 13.
  • the smock is made from an outer layer 14 bonded to an impermeable inner layer 15 (see Figure 4).
  • the outer layer 14 is comprised by a multi-fibre synthetic flame retardant light weight woven fabirc whilst the inner layer 15 is a polyamide or pvdc plastics film coated with butyl rubber.
  • a preferred fabric for the outer layer 14 is a mixture of 33% polyamide and 67% modacrylic having a weight of 248 g/m 2 , being of 3/1 twill construction with 31.9 warp threads/cm and 28.5 weft threads/cm.
  • the material has a breaking load of 1086N in the warp direction and 919N in the weft direction.
  • the two layers may be bonded together using a discontinuous adhesive system, for example low melt polyamide fibre or powder.
  • a discontinuous adhesive system for example low melt polyamide fibre or powder.
  • Vented areas 16 are provided on either side of the front of the smock just below the shoulders.
  • Each vented area 16 comprises an extended rectangular opening 17 through the layers 14 and 15.
  • the opening 17 is covered by a plurality of horizontally extending strips 18 of material similar to that of the layer 14.
  • the upper edge of the uppermost strip 18 is sewn to the skin 14 above the opening 17 and each strip 18 overlaps the strip 18 therebelow to provide a plurality of gill-like apertures 20 through which the garment may breathe.
  • the side edges of the strips 18 are sewn to the layer 14 at the sides of the opening 17 and the strips 18 are cut full so that they bow slightly outwardly to maintain the apertures 20 open.
  • Air entering the smock through the openings 17 is decontaminated by passage through filters 30 secured on the inside of such openings by any suitable means such as by Velcro (Registered Trade Mark) tapes for example.
  • the filters 30 may be of polyurethane foam impregnated with activated carbon material or of other known kind.
  • valves 21 are provided, preferably of the flap-valve type in apertures through the garment in the vicinity of the wearer's two armpits and on opposite sides of the hood portion 11.
  • the valves 21 are arranged to allow air and the wearer's body vapours to pass from inside the garment to atmosphere. In use, movement of the wearer's body acts to pump air and body vapours through the valves 21 causing air to be drawn into the garment through the apertures 20, thus establishing positive air flow through the garment, greatly enhancing the comfort of the wearer.
  • All of the sewn seams are rendered waterproof by an impermeable coating or by means of an impermeable tape such as a nylon tape, for example.
  • Figure 2 shows a pair of trousers of similar construction to the smock of Figure 1 having the vents 16 on the legs and two one-way valves 21 in the vicinity of the groin.
  • the casualty bag 40 is generally in the form of a sack made from the same two layer material as previously described and having side walls 41. Vents 42 similar to the vents 16 of the smock described above are provided at spaced locations around the side walls 41 and decontaminating filters are positioned behind the vents 42 as previously indicated.
  • One-way valves 43 for the exhaust of air from within the bag are provided at spaced locations in the top of the bag. They are of the flap type. Hand or battery driven pump means (not shown) may be provided to connect with the valves 43 to draw air therethrough from the interior of the bag thus forcing air to enter through the vents 42 thereby establishing circulation of decontaminated air through the bag.
  • the top of the bag is closed by a slide fastener arrangement 44 which may be opened to enable a casualty to be positioned in or removed from the bag.
  • the slide fastener is preferably as described hereinafter.
  • a small tent 50 having a sewn-in ground sheet 51 is constructed from a two layer material as previously described.
  • the walls of the tent 50 are equipped with vents 52 and one way valves 53 all as discussed hereinbefore.
  • the tent 50 has a door 54 openable by means of a slide fastener 55 designed when closed to prevent passage of contaminated air and again preferably constructed as described hereinafter. Again motor or manually operable (from within the tent) means may be provided to ensure air circulation through the tent by way of vents 52 and valves 53.
  • the preferred slide fastener is shown at 100 in Figures 7 and 8 and is adapted to releasably connect a first enclosure part 110 with a second enclosure part 120.
  • the fastener parts 100a and 100b are sewn to the parts 110 and 120 such that the part 110 provides a flap 130 of substantial width overlying the fastener 10 and an edge region of the part 120.
  • the edge of the flap 130 can be releasably secured to the part 120 by means of a Velcro (Registered Trade Mark) tape fastener whose tapes 140a and 140b are sewn to the inside of flap 130 and outside of part 120 respectively to define a pocket 150 extending over the length of the fastener 100 and containing a filter pad 160 also extending over the length of the fastener 100.
  • a Velcro Registered Trade Mark
  • the pad 160 may be of polyurethane foam impregnated with active carbon material for example.
  • Additional Velcro tape fasteners may be provided to secure the pad 160 in position if desired.
  • slide fasteners of Figures 7 and 8 may be incorporated in garments such as those of Figures 1 and 2 if desired.

Landscapes

  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Tents Or Canopies (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
EP86300346A 1985-02-02 1986-01-20 Vêtement ou enceinte de protection Withdrawn EP0190838A3 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
GB8502725 1985-02-02
GB8502726 1985-02-02
GB8502725 1985-02-02
GB8502726 1985-02-02
GB8506068 1985-03-06
GB8506068 1985-03-06
GB8516425 1985-06-28
GB8516425 1985-06-28

Publications (2)

Publication Number Publication Date
EP0190838A2 true EP0190838A2 (fr) 1986-08-13
EP0190838A3 EP0190838A3 (fr) 1987-08-05

Family

ID=27449627

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86300346A Withdrawn EP0190838A3 (fr) 1985-02-02 1986-01-20 Vêtement ou enceinte de protection

Country Status (1)

Country Link
EP (1) EP0190838A3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004030764A3 (fr) * 2002-05-10 2004-07-15 Kappler Inc Vêtement anti-contamination
DE102006032145A1 (de) * 2006-05-23 2007-11-29 BLüCHER GMBH ABC-Schutzbekleidung mit verbesserter Luftaustauschfunktion
GB2531516A (en) * 2014-10-19 2016-04-27 Joaquin Perez Linde Angel A protection suit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3113320A (en) * 1958-07-23 1963-12-10 Cherowbrier Edward Ventilated coverall-type garment
NO128694C (fr) * 1972-04-17 1975-07-22 Hansen Helly As

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004030764A3 (fr) * 2002-05-10 2004-07-15 Kappler Inc Vêtement anti-contamination
DE102006032145A1 (de) * 2006-05-23 2007-11-29 BLüCHER GMBH ABC-Schutzbekleidung mit verbesserter Luftaustauschfunktion
EP1859837A3 (fr) * 2006-05-23 2008-07-09 Blücher GmbH Vêtement de protection contre les menaces ABC comprenant une fonction de renouvellement d'air ameliorée.
US7877819B2 (en) 2006-05-23 2011-02-01 Blucher Gmbh NBC-protective clothing with an improved air-exchange function
GB2531516A (en) * 2014-10-19 2016-04-27 Joaquin Perez Linde Angel A protection suit

Also Published As

Publication number Publication date
EP0190838A3 (fr) 1987-08-05

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Inventor name: MARKWELL, EDGAR ROY

Inventor name: SMITH, NIGEL FEARN CLIVE