Protective helmet containing dye capsules

Details Protective helmet containing dye capsules Protective helmet containing dye capsules

1993-07-26

1994-09-06

Crowder, Clifford D.

Apparel

Guard or protector

For wearer's head

2411, A42B 300

Patent

active

053435699

ABSTRACT:
A protective helmet, particularly used by children, is provided to include an enclosed, generally cylindrical helmet structure providing a plurality of layers of first and second density polymeric foam respectively, with a chin panel mounted to a first side of the helmet arranged for securement to a second side of the helmet.

REFERENCES:
patent: 2250275 (1941-07-01), Riddell
patent: 2729024 (1956-01-01), Guttmann
patent: 2908911 (1959-10-01), Sowle
patent: 3039108 (1962-06-01), Lohrenz
patent: 3242500 (1966-03-01), Derr
patent: 3859666 (1975-01-01), Marietta et al.
patent: 3866909 (1975-02-01), DeSantis
patent: 3946441 (1976-03-01), Johnson
patent: 4064565 (1977-12-01), Griffiths
patent: 4446576 (1984-05-01), Hisataka
patent: 4663705 (1987-05-01), Comparetto

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