Combination headset and face mask device

Details Combination headset and face mask device Combination headset and face mask device

1991-09-30

1993-01-19

Schroeder, Werner H.

Apparel

Head coverings

Convertible

2 6, A61F 1100

Patent

active

051797364

ABSTRACT:
Motion limiting means are provided on a combination headset and face mask device to eliminate the necessity of a rear head strap which is normally utilized to position the headband and to prevent its relative movement on the wearer's head when the face mask is adjusted as between upper and lower positions. This is accomplished by the provision of a bridge member which in essence pins the terminal band portion of the headband against its proximal ear cup thereby enabling the headband and ear cups to act as an unit and thus increase the frictional force available against the face mask moving the headband out of position.

REFERENCES:
patent: 2782423 (1957-02-01), Simon
patent: 3943574 (1976-03-01), Yamaguchi
patent: 4756028 (1988-07-01), Scanlon
patent: 4802243 (1989-02-01), Griffiths
patent: 5046192 (1991-09-01), Ryder

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