Bicycle helmet having air filtering and breathing means

Details Bicycle helmet having air filtering and breathing means Bicycle helmet having air filtering and breathing means

1991-06-03

1992-08-18

Burr, Edgar S.

Surgery

Respiratory method or device

Including body or head supported means covering user's scalp

12820125, 12820126, A62B 1810

Patent

active

051390175

ABSTRACT:
This invention pertains to a protective helmet having a plurality of vents therein and air supply tubing and filtration element for supplying filtered air to a user. The air supply tubing is connected to the filtration element mounted in the helmet and delivers this filtered air through an inlet one-way valve and a mouthpiece to the user upon demand. The inlet and an exit one-way flow valve maintain the proper flow direction during the inhale and exhale phases and prevent any back-flow from occurring.

REFERENCES:
patent: 1150460 (1915-09-01), Schreiber
patent: 3068865 (1962-12-01), Laszlo
patent: 3491752 (1970-01-01), Cowley
patent: 3683907 (1972-08-01), Cotabish
patent: 4434514 (1984-03-01), Sundahl et al.
patent: 4443891 (1984-04-01), Blomgren et al.
patent: 4555816 (1985-12-01), Broersma
patent: 4586200 (1986-05-01), Poon
patent: 4653123 (1987-03-01), Broersma
patent: 4995117 (1991-02-01), Mirage
patent: 5023958 (1991-06-01), Rotzin

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