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Protective hood made of variable stretch knit and woven textile material
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A technology of knitted material and knitted material, which is applied in the direction of heat insulation protection device, protection device against harmful chemical agents, hats, etc.
Active Publication Date: 2021-07-09
HONEYWELL INT INC
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Drawbacks are: Stretched knit material opens up the spaces between the yarns and allows a greater amount and size of particulate matter and air or liquid to pass through than unstretched knit material; eventually, springback of the knit material memory becomes poor, and the fit, both with and without the assistive headgear, becomes loose to the extent that satisfactory performance cannot be provided; and as the same pocket Hoods, hoods made of knitted material provide a higher level of insulation value when the material is not stretched, which is especially problematic when the design is to provide protection from low or high temperature extremes;
[0012] 3. Hoods made of woven textiles are more challenging to fit on the head, both with and without an assistive headgear;
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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[0027] refer to figure 1 , provides a protective hood 10 for use by firefighters, emergency responders, and other personnel who need to be protected from hazardous environments, which may include extreme heat, fire, hazardous chemicals, water, biological hazards, etc. Wait. The protective hood 10 uses both woven and knitted textile materials to form a single hood, where each material is used in the hood 10 where its respective positive qualities are most needed and desired based on the specific intended use of the protective hood 10 ( positive quality) position. In this regard, for example, if the hood is intended to be worn with a mask / face piece, it would be desirable to utilize a woven material (coated / laminated or uncoated) in certain locations, some A location would be undesirable in a hood that is not intended to be worn with a mask or face piece. As another example, some protective garments worn in combination with a hood may be best suited for a knitted material to ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract
A protective hood (10) for use by firefighters or other emergency personnel is provided and includes a crown portion (12), a head portion (14), a face opening (16) defined by a peripheral edge (18), and Front and rear curtains (20, 22). At least some of the parts (12, 14, 18, 20, 22) are formed of knitted material and at least some other of the parts (12, 13, 18, 20, 22) are formed of at least one layer of knitted material.
Description
[0001] Cross References to Related Applications [0002] Not applicable. [0003] Federally funded research or development [0004] Not applicable. [0005] Microfiche / Copyright Reference [0006] Not applicable. technical field [0007] The present disclosure relates to protective hoods, and in particular to protective hoods worn, for example, by firefighters or other emergency responders. Background technique [0008] Protective hoods, such as those used by firefighters, are exemplified in U.S. Patent Nos. 4,972,520, 5,090,054, 5,873,132, 6,662,375, and 8,225,428, the disclosures of which are incorporated herein by reference and also available from Morristown, NJ. Commercially available from Honeywell International Inc. Protective hoods are also used by others such as race car drivers, rescuers and other first responders. [0009] Protective hoods (either as stand-alone items or when attached to clothing) such as for military, industrial, firefighting, recreational o...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information
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