Protective hood

 

Hood relates to the manufacture of items of protective clothing. The protective hood is made in the form of a bag with a sealed internal cavity, at least part of which is made of transparent heat-resistant material, and equipped located in the area of respiratory organs of the user sorption-filtering insert of the multilayered fibrous material. The hood is equipped with a sleeve with perforations, the inner end of which is placed in the cavity of the bag, and the outer is beyond the last. Sorption-filter insert is made in two parts, each of which has a Central hole, these parts are hermetically connected along the periphery, mounted on the sleeve and separated in the axial direction so that the perforations of the sleeve located between the said parts. Mentioned part of the insert tightly secured to the sleeve by its Central hole so that between the parts of the insert is formed inhalation cavity, and the perforations of the sleeve is located within said cavity. Offer the hood ensures a high degree of protection for retina relates to the field of making articles of special clothing, in particular, hoods, caps, masks, etc. for protection of the respiratory, vision, hearing and skin and hair on the human head from exposure to harmful gases, smoke, products of combustion, heat fluxes, etc.,

The prior art protective hoods and caps, which in the field of respiratory organs of the user is fixed filter or sorbent materials. For example, in the protective cap, described in EP No. 0374776, 1980, as a filtering component using a multilayer material comprising a fabric base, fiberglass, PVC and silicone coating.

The closest in technical essence and the achieved result is a protective hood, made in the form of a bag made of transparent heat-resistant material installed in the area of respiratory sorption-filtering insert of the multilayered fibrous material, provided with check exhalation valve (RU # 2153386, 2000). This hood is quite compact and lightweight, however, the disadvantage of the hood is low manufacturability of its manufacture and is not high enough degree of protection (on time), because the protective properties are directly dependent on the effective area Wania hood.

The problem is solved by the described protective hood, made in the form of a bag with a sealed internal cavity, in which at least part is made of a transparent heat-resistant material, and having in the region of the respiratory organs of the user sorption-filtering box on the basis of the multilayered fibrous material, and a hood provided with a perforated sleeve, i.e., the sleeve is made in its middle stretch of perforations, and established it within the mentioned plot postavka separator, while the sorption-filter insert is made in two parts, each of which has a Central hole, and hermetically connected to each other at the periphery, and each of them is hermetically secured at its Central hole on said sleeve so that the perforations of the sleeve located between the said parts of the insert, and between the last placed spacers spacer forming inhalation cavity between the said parts of the insert, which is made in the form of strips of the said material, while said sleeve is located so that its inner end is placed in the cavity of the bag does not return exhalation valve, mount it on the outer end of the perforated sleeve.

Optimally, if the multilayered fibrous material is made of five-layer and contains at this layer of heat-resistant material, a layer of material absorbing aerosols, the material layer for oxidation of carbon monoxide absorbing layer and hygienic layer.

It is advisable between the parts of the insert to form an inhalation chamber, to which the hood is equipped with a separator disposed between the facing to each other of the same layer two parts sorption-filter inserts, namely between hygienic layers.

The separator is made in the form of a symmetrical geometric shape with radially extending from the Central part of the processes-rays, and each of the two parts sorption-filter insert is made in the form of a strip of rectangular shape of the above-mentioned material.

It is also advisable that the area of the bore hole sleeve, and the total area of the perforations in the wall of the sleeve would be at least 5 cm2the sleeve is made cylindrical and the outer surface of the sleeve is made of radial protrusions, for example in the form of a flange intended to commit the insert strips.

To the e on the sleeve between the outer face of the latter and plot it with perforations, as well as the mouthpiece covering the sleeve in the area of the inner end of the latter, and in the zone of connection of the sleeve with the mouthpiece, on the outer surface of the last executed groove in which is placed a retaining ring.

Further, it is desirable that the hood was equipped with a nose clip which can be placed in individual containers, and the hood is equipped with a flexible coupling with a weakened piece that connects the nose clip or a package material bag, and a flexible connection attached to the bag material with the outer side of the latter.

The invention is illustrated by drawings, where Fig.1 is a schematic representation of a hood with a slit on the sorption-filter insert of Fig.2 depicts the spacers separator, view in plan; Fig.3 - the same, in the section.

The hood is made according to the invention, contains placed in a container (not shown) sealed (i.e., gas and/or vapor) bag 1 of the heat-resistant film, at least part of which (or the whole bag) is made transparent, which provides the user the ability to navigate in low visibility conditions. In the middle part of the bag has a sorption-filtering box 2 of the multilayer ox, layer 4 of a material absorbing aerosol layer 5 catalytically active material for oxidation of carbon monoxide absorbing layer 6 and hygienic layer 7. Structurally, the insert is made of two parts 8 and 9 each in the form of longitudinal strips or of the above - mentioned material facing each other hygienic layer 7. Between bands 8 and 9, each of which has a Central hole, placed spacers separator 10, is made mainly in the form of a symmetric star with the appendages beams 11 extending radially from the Central ring 12. The number and dimensions of the prongs 11 are determined by the shape and size of the strips 8 and 9. Between hygienic layers of strips 8 and 9, the spacer separator 10 allows you to organize inhalation cavity 13 - free space between the strips, which increases the effective area of the insert while maintaining its dimensions. Lanes 8 and 9 (on their Central holes and spacers separator 10 is mounted on the sleeve 14, mainly cylindrical with a cross-sectional area S0having in the middle part of its wall through the perforations with a total area of S1(approximately equal to S0) (i.e. raspolojennyi 14, which is located so that its inner end is placed in the cavity of the bag, and the outer is beyond the last.

Part of the insert in the form of strips 8 and 9 are fixed on the perforated sleeve 14 in the axial direction by, for example, performed on the outer end of the sleeve radial protrusion, for example in the form of a flange 15, and installed in grooves (not labeled) retaining rings 16, which in this case it is desirable to perform from an elastic material for sealing the connection. From the outside (i.e. from the side of the flange 15 in the through hole of the sleeve is made saddle 17, with which the contact blade 18 reverse exhalation valve mounted on the outer end of the said sleeve. To the inner end of the sleeve 14 (i.e. to the end of the sleeve facing the inner cavity of the bag 1) attached to the mouthpiece 19, intended for placement in the mouth of the user. The connection of the mouthpiece 19 and sleeve 14 made by protrusions 20 that are included in grooves 21, performed at the above-mentioned interactive details. To improve the tightness of the connection node of the sleeve 14, the mouthpiece 19 and the bag 1 on the outer surface of the first executed annular groove 22 in which is placed an additional retaining conym layer 24. To the bag 1, with its outer side, attached nose clip 25, which can be placed in individual packaging (not shown). Fastening pocket clip (or its packaging) to the bag 1 made by flexible connection 26, which includes a section 27 with a weakened section for quick separation of the clip from the bag 1 without danger of damage to the latter. On the open end of the pouch 1 may be provided with elastic collar (not shown) which would increase the degree of tightness worn on the head of the user of the hood.

This hood can be manufactured using the following materials: transparent (color) polyimide film with a thickness of 25-60 μm, the silicone (kremlinology rubber), plastic (in particular, heat-resistant polycarbonate or polypropylene), polyethylene, and polyurethane.

The use of the proposed hoodie is as follows.

When the occurrence of an extreme situation, the user pulls out the package with hood, retrieves the latest and expand it. The user then separates from the bag hood packaging with a nose clip and sets out the latest on the nose, eliminating the breathing through the nose. The user then pulls kapus what the user is cleaned air, i.e. passed through the filter insert. As the test showed, the user gets the opportunity to be in the danger zone (level exceeding the MPC to 100 times) for at least 20 min, which is sufficient for recovery from the mentioned areas. Thus, the user has at his disposal a light and compact tool that allows you some time it is safe to be in a contaminated space and obtains thereby an opportunity to exit the danger zone.

Claims

1. Protective hood, made in the form of a bag with a sealed internal cavity, at least part of which is made of transparent heat-resistant material, and equipped located in the area of respiratory organs of the user sorption-filtering insert of the multilayered fibrous material, wherein the hood is provided with a sleeve with perforations, the inner end of which is placed in the cavity of the bag, and the outer extends beyond the latter, and sorption-filter insert is made in two parts, each of which has a Central hole, these parts are hermetically connected along the periphery, sacral the s between the said parts, these parts of the insert tightly secured to the sleeve by its Central hole so that between the parts of the insert is formed inhalation cavity, and the perforations of the sleeve is located within said cavity.

2. Hood under item 1, characterized in that the multilayered fibrous material is made of five-layer and includes a layer of heat resistant material, a layer of material absorbing aerosols, the material layer for oxidation of carbon monoxide absorbing layer and hygienic layer.

3. Hood under item 1, characterized in that the hood is equipped with a separator located in the inhalation cavity between facing each other hygienic layers of two parts sorption-filtering insert.

4. The hood on p. 3, characterized in that the separator is a plan view of a symmetrical geometric shape with radially extending from the Central part of the processes-rays.

5. Hood under item 1, characterized in that each of the two parts sorption-filter insert is made in the form of a strip of rectangular shape of the above-mentioned material.

6. Hood under item 1, characterized in that the area of the bore hole sleeve, and the total area perfo sleeve is cylindrical.

8. Hood under item 1, characterized in that on the outer surface of the sleeve has radial protrusions intended to commit the insert strips.

9. Hood under item 1, characterized in that it is equipped with a check valve exhalation.

10. The hood on p. 9, characterized in that the return exhalation valve mounted on the sleeve between the outer face of the latter and plot it with perforations.

11. Hood under item 1, characterized in that the hood is equipped with a mouthpiece covering the sleeve in the area of the inner end of the latter.

12. The hood on p. 11, characterized in that in the zone of connection of the sleeve with the mouthpiece, on the outer surface of the last executed groove in which is placed a retaining ring.

13. Hood under item 1, characterized in that the hood is equipped with a nose clip.

14. The hood on p. 13, wherein the nose clip is placed in an individual package.

15. Hood under item 13 or 14, characterized in that the hood is equipped with a flexible coupling with a weakened piece that connects the nose clip or the packing material of the bag.

16. The hood on p. 15, characterized in that a flexible connection attached to the bag material with the outer side of the latter.

 

Same patents:

The invention relates to a filter material for purification of industrial gases and liquids from solids and can be used in chemical, petrochemical, automotive, agricultural, engineering, defense and other industries, requires a high clearance dispersion medium from mechanical particles

The invention relates to the production of heat-resistant filter materials, namely fire-resistant filter materials in the texture of the fabric, which can be used for high temperature filtration of flue gases from solid particles in the nuclear, chemical, metallurgy, power engineering, production of carbon black and so on
The invention relates to the production of sorbents based on activated carbon materials for absorption of organic vapors (benzene, toluene, acetone, etc.,), vapors of ammonia and mercury

Filter material // 2219986
The invention relates to the purification of liquids and gases from solid particles and can be used in chemical, petrochemical, metallurgical, automotive, and other industries that use filters in the main and auxiliary production, ecological processes of wastewater treatment and flue gas, while oil spills from tankers, pipelines and tank farms, as well as to collect oil from the water surface

The invention relates to a filter material for air purification from harmful substances such as harmful aerosols (dust, smoke, fog), vapours of organic compounds with a boiling point above 60oWith (benzene, toluene, ethanol, gasoline, kerosene, acetone, etc., and acid gases (chlorine, fluorine, sulfur-containing compounds)

The invention relates to electret articles used to remove aerosols from gases, especially from the air

Filter material // 2198717
The invention relates to the purification of liquids and gases from solid particles and can be used in chemical, petrochemical, metallurgical, automotive, and other industries that use filters in the main and auxiliary production, ecological processes of wastewater treatment and flue gas, while oil spills from tankers, pipelines and tank farms, as well as to collect oil from the water surface

Filter material // 2198716
The invention relates to the purification of liquids and gases from solid particles and can be used in chemical, petrochemical, metallurgical, automotive and other industries, as well as the ecological processes of wastewater treatment and flue gas using filter materials on vibratility

Filter fabric // 2182608
The invention relates to the production of fabrics and filter fabrics made of main and weft threads, which represents a twisted yarn of the same linear density, and having a surface density of 350-500 g/m2when this yarn is made from a mixture of polymers of polyvinyl chloride and polyvinylidenechloride taken in the ratio 90-60:10-40 wt.%, and the breathability of the fabric is 0,2-0,042 m3/(m2(C)

The invention relates to personal protection of human

The invention relates to special protective clothing used in extreme situations: fire suppression, elimination of consequences of accidents, disasters and t

Helmet // 2030191
The invention relates to the means of respiratory protection in the form of a helmet

Helmet // 2018330
The invention relates to the means of individual protection of respiratory organs

Protective helmet // 2252049

FIELD: protective means, particularly for firemen evacuation from crowning fire site, for firemen protection during extinguishing fire in smoky environment and for rescuing people from burning buildings.

SUBSTANCE: helmet comprises hood freely enveloping user's head and tightly slinging to user's neck with the use of sealing means formed of heat-resistant flexible material. Helmet also has window in area of user's eyes and made of transparent heat-resistant flexible material and breathing means including filtering members with activated charcoal. Window material is polymeric film with heat-reflecting coating applied on outer surface thereof. Hood material also has heat-resistant coating. Sealing means is made as a rope with fastener and movably secured to outer hood surface. Breathing means includes a body with breathing mouth-piece, filtering members formed as alternating activated charcoal and hopcalite layers. Body end is closed with smoke protective filtering member. The breathing means body is protected with heat-resistant heat-reflecting material including air-permeable layer located from inner material side.

EFFECT: improved protection and operational convenience.

5 cl, 2 dwg, 2 ex

Protective veil // 2266764

FIELD: rescue service, in particular, protective clothing used as compact individual means for protecting individual's head in fire from thermal action and toxic substances.

SUBSTANCE: protective veil is made in the form of bag manufactured from air-impermeable thermally stable at least partly transparent film. Protective veil has sorption-filtering member made from fibrous material and including at least one layer of anti-aerosol material, and base connected in hermetically sealing relationship with said film. Base is made in the form of cover with at least one opening. Container filled with sorbent is placed within bag cavity under cover. Sorption-filtering member is equipped with former allowing said member to be placed in its operating position.

EFFECT: compact and simplified construction, increased extent of protection and simplified usage.

15 cl, 1 dwg

FIELD: means of protection.

SUBSTANCE: respiratory system protection device includes a cap which is made from gas-tight heat-resistant flexible material and equipped with transparent section in front part and which has neck sealing. In internal cavity of cap there arranged is air regeneration system in the form of packet of plates of regenerative product enclosed in porous covering. Covering is put into shell attached to cap wall. To edge of shell there attached is air flow booster the drive of which is connected to power supply though switch.

EFFECT: reducing weight and overall dimensions of device, and possible operation at increased loads.

4 cl, 7 dwg

FIELD: means of protection.

SUBSTANCE: device for protection of respiratory system includes protective cap made from flexible gas-tight material which is equipped with neck sealing. In the cap there installed are cartridges with regenerative product. Cartridges are fixed symmetrically on opposite walls of cap and connected along edges to fans connected to power unit through switch. On one of the cartridges there fixed is starting device which is also connected to power unit. In cavity of cap there installed is cooler so that gap between rear wall of cap and wall of cooler is formed. Cooler is made in the form of screen with connecting strips. At that, inlet of fans is located from the side of respiratory system of user.

EFFECT: reducing concentration of carbon dioxide at the inlet owing to improvement of gas medium exchange in cap cavity.

7 dwg

FIELD: medicine.

SUBSTANCE: invention refers to emergency respiratory protectors. The protector comprises a protective cap made of a flexible gas-proof material and provided with a collar seal; besides the protector accommodates a regeneration product cartridge, a fan and a respiratory bag. The cartridge and fan are incorporated in the respiratory bag. A front wall of the respiratory bag is integrated with a face part of the cap. The collar seal is attached to the back wall of the respiratory bag and an occipital part of the cap.

EFFECT: enabled free respiratory gas circulation between the cap and respiratory bag, and improved ventilation of the cap space and respiratory area, with the circulation rate being compared with the user's pulmonary ventilation.

2 dwg

FIELD: filter materials.

SUBSTANCE: invention relates to purification of liquids and gases to remove solids and can be used in a variety of industries utilizing filters in mainline and secondary production areas, in environmentally oriented waste water and emission gas treatment processes, in oil spill cases from tankers, oil pipelines, and oil storehouses, and also in need of collecting petroleum products from water surface. invention provides filter material composed of synthetic threads in the form of tubular hosiery constituted by two parts, one of which contains rubber crumb and the other polyurethane foam crumb at volume ratio 1:(1-4), respectively. According to claim 2, tubular hosiery consists of several interconnected alternating sections, in particular sections constituted by two parts, one of which contains rubber crumb and the other polyurethane foam crumb at volume ratio 1:(1-2), respectively, alternate with sections containing only polyurethane foam crumb.

EFFECT: improved quality of filtration, increased floatability on water surface to be purified, and increased purification area.

2 cl, 1 dwg, 1 tbl, 6 ex

Up!