Ventilating device for helmet

Details Ventilating device for helmet Ventilating device for helmet

1990-10-22

1992-02-11

Schroeder, Werner H.

Apparel

Guard or protector

For wearer's head

2425, 21713, A42B 108

Patent

active

050865200

ABSTRACT:
A ventilating device for a helmet wherein a ventilation passage for communication between the interior and the exterior of a helmet body is formed near the head top of the helmet body; and an induction duct is mounted above the communication passage so as to be slidable longitudinally and rotatable; and the opening and closing of the ventilation passage are changed over from one to the other by longitudinal sliding and rotation of the induction duct, whereby the outside air can be introduced into the interior of the helmet body, the air staying in the interior can be discharged, and also these operations can be stopped.

REFERENCES:
patent: 4075714 (1978-02-01), Ryder et al.
patent: 4115874 (1978-09-01), Hasegawa
patent: 4141085 (1979-02-01), Adams, Sr.
patent: 4700411 (1987-10-01), Kawasaki et al.
patent: 4704746 (1987-11-01), Nava

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