Apparel – Guard or protector – For wearer's head
Patent
1986-12-04
1988-06-28
Nerbun, Peter
Apparel
Guard or protector
For wearer's head
21713, 12820124, 12820028, A42B 300
Patent
active
047529741
ABSTRACT:
An air-feed type protective helmet includes a cap body to which a face shield is rotatably mounted for movement between a lower use position and an upper non-use position. In order to feed clean air to a space provided between the wearer's face and the face shield, a front visor portion is provided which extends from one lateral side to the other lateral side. This front visor portion includes an inner wall and an outer wall which are integrally formed with the cap body and which have an opening therebetween at lower edges thereof. A bottom wall closes the opening between the inner wall and outer wall to define an air passage. An air outlet is provided in the bottom wall. An air pipe connector is located on one of the lateral sides and is in fluid communication with the air passage. The air pipe connector includes an air pipe connection to which a source of clean air is connectable. Preferably, the air passage has lateral openings at each lateral side, one of which is closed by the air connector and the other of which is closed by an air passage closing member. In the preferred embodiment, the bottom wall, the air pipe connector, and the air passage closing member are all detachably mounted to the cap body.
REFERENCES:
patent: 2032101 (1936-02-01), Sullivan
patent: 2560215 (1951-07-01), Christensen
patent: 2688962 (1954-09-01), Summers
patent: 3223086 (1965-12-01), Denton
patent: 3813696 (1974-06-01), Yeager
patent: 3881478 (1975-05-01), Rosendahl et al.
patent: 4280491 (1981-07-01), Berg et al.
patent: 4442551 (1984-04-01), Hellberg
patent: 4571741 (1986-02-01), Guillaumot
patent: 4676236 (1987-06-01), Piorkowski et al.
Nerbun Peter
Shigematsu Works Co., Ltd.
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