Protective headgear

Details Protective headgear Protective headgear

Filed on

1993-04-05

Date issued

1994-10-04

Examiner

Nerbun, Peter

Patent Class

Apparel

SubClass

Guard or protector

SubSubClass

For wearer's head

Other Related Categories

2425, 2DIG1, A42B 302

Type

Patent

Status

active

Patent number

053513428

Description

ABSTRACT:
A safety helmet comprises hard internal and external shells and a shock-absorbent insert. The internal shell forms at its lower edge and on the outside thereof an upwardly-opening trough in which the insert is inserted. The free edge of the trough joins with the lower edge of the external shell above the bottom of the trough. The two shells, together with the insert, form ventilation openings which are lined by portions of the two shells. The main portion of the internal shell is embedded into the soft-bodied insert, so that it is mainly the insert that contacts the wearer's head, but for the rim portion thereof where the internal shell still surrounds the bottom edge of the insert.

REFERENCES:
patent: 3116490 (1964-01-01), Zbikowski
patent: 3935044 (1976-01-01), Daly
patent: 4051555 (1977-10-01), Daly
patent: 4133055 (1979-09-01), Zebuhr
patent: 4619003 (1986-10-01), Asbury
patent: 4656667 (1987-04-01), Blake
patent: 4710984 (1987-12-01), Asper et al.
patent: 4736469 (1988-12-01), Boretti
patent: 4796309 (1989-10-01), Nava
patent: 4845786 (1989-07-01), Chiarella
patent: 4901373 (1990-02-01), Broersma
patent: 4996724 (1991-05-01), Dextrase
patent: 5119516 (1992-06-01), Broersma

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