Air intake device in helmet

Details Air intake device in helmet Air intake device in helmet

1994-01-06

1995-02-14

Crowder, Clifford D.

Apparel

Guard or protector

For wearer's head

2424, 21713, A42B 108

Patent

active

053882784

ABSTRACT:
In an air intake device in a helmet, a housing is molded as one piece from a synthetic resin material and as an upper wall, a lower wall, a left end wall and a right end wall. First and second recesses are defined in the back surface of the upper wall and in the front surface of the lower wall, respectively, so as to communicate with each other to define a shutter chamber. Wind guide sleeves are formed on the lower wall which are opened and closed by a shutter plate which is vertically accommodated in the shutter chamber. The housing of shutter as an essential part of the air intake device in the cap body is formed of a single piece of a synthetic resin, thereby providing a simplified structure.

REFERENCES:
patent: 5170511 (1992-12-01), Kamata

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