Individual equipment for protection against NBC threats

Details Individual equipment for protection against NBC threats Individual equipment for protection against NBC threats

1998-05-05

2000-12-19

Weiss, John G.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820422, 12820423, 12820627, 12820711, A62B 1704

Patent

active

061615382

ABSTRACT:
The equipment has a helmet, a full face-cover fitted with fastenings for fixing it to the helmet, and with a coupling for connection to a breathable gas feed hose. It also has a flexible envelope extending the helmet and the face-cover downwards. For leakproof junction between the helmet, the face-cover and the envelope, a hoop is sealingly connected to the helmet. It has a lower branch which constitutes a closed bottom loop for receiving the envelope and a transverse branch having one side designed to sealingly receive the shell of the helmet and an opposite side which sealingly receives the face-cover. A plug rigidly fixed to the face-cover and placed in a vertical midplane of the face-cover, at the bottom thereof, engages a socket pivotally connected to the hoop. Lateral fasteners complete the connection.

REFERENCES:
patent: 2935985 (1960-05-01), Andrews et al.
patent: 3259127 (1966-07-01), Klinger et al.
patent: 4926854 (1990-05-01), Bode
patent: 5279286 (1994-01-01), Chen
patent: 5575278 (1996-11-01), Bonhomme et al.
patent: 5630412 (1997-05-01), Dubruille et al.
patent: 5720281 (1998-02-01), Allen et al.

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