Ventilation protective helmet

Details Ventilation protective helmet Ventilation protective helmet

A - Human Necessities

42

B

A42B 3/28 (2006.01)

Patent

CA 2164539

A protective helmet including a body portion formed at a top thereof with a first hole and having a hood extending outwardly from the top of the body portion thereby forming a passage communicating with the first hole, an intermediate layer fitted on an inner surface of the body portion having a second hole communicating with the first hole of the body portion and a plurality of first grooves extending radially from the second hole, a foamed rubber layer adhered to the intermediate layer and formed with a plurality of raised portions and second grooves which communicate with the first grooves, and a cloth lining adhered on the foamed rubber layer.

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