Canadian Patents Database / Patent 2189378 Summary
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|(12) Patent:||(11) CA 2189378|
|(54) English Title:||PROTECTIVE HOOD|
|(54) French Title:||CAGOULE DE PROTECTION|
|(51) International Patent Classification (IPC):||
|(72) Inventors (Country):||
|(73) Owners (Country):||
|(71) Applicants (Country):||
|(74) Agent:||YANG, MARK MING-JEN|
|(22) Filed Date:||1996-11-01|
|(41) Open to Public Inspection:||1998-05-01|
|(30) Availability of licence:||N/A|
|(30) Language of filing:||English|
A protective hood is provided for wearers of gas masks in emergency situations. The hood is formed to provide a "synthetic skin" for the wearer's head, with openings for the eyes, nose and mouth, and neck. A smooth surface around such openings provides for a sealing contact with the gas mask which is donned over the hood. Various means are provided for constricting the hood about the neck to ensure a gas-tight contact. Circulation means within the hood, and a pouched ice gel pack on the exterior of the hood, is provided to cool the wearer's head.
L'invention concerne une cagoule de protection destinée aux porteurs de masque à gaz dans des situations d'urgence. La cagoule est formée pour fournir une « peau synthétique » pour la tête du porteur, avec des ouvertures pour les yeux, le nez et la bouche, ainsi que pour le cou. Une surface lisse autour de ces ouvertures permet un contact étanche avec le masque à gaz, qui est enfilé par-dessus la cagoule. Divers moyens sont prévus pour resserrer la cagoule autour du cou afin de garantir un contact étanche aux gaz. Un moyen de circulation à l'intérieur de la cagoule, ainsi qu'un pack de gel réfrigérant en pochette sur l'extérieur de la cagoule, sont prévus pour maintenir la tête du porteur au frais.
2. A hood for protecting the wearer's head, made of gas-impervious,
flexible material, to be used with a gas mask having a face and mouth
(a) a head portion for enclosing snugly the head of
the wearer, which has:
(i) a back; and
(ii) a front portion having a smooth exterior
surface for a gas-tight contact with the face piece
of the gas mask and defining a face opening for the
eyes, nose and mouth of the wearer; and
(b) a tubular neck portion, integral with said head portion,
for covering the neck of the wearer, which has: (i) a
smooth interior surface for a gas-tight
contact with the neck of the wearer; and (ii)
neck portion constricting means for
constricting said neck portion about the neck of the
2, The hood of claim 1, wherein said neck portion constricting
means includes the inwardly and downwardly flaring of said neck
portion without any outwardly flaring.
3. The hood of claims 1 or 2, further comprising cooling means disposed
on the interior of said head portion to permit air to circulate in contact
with wearer's head under the hood.
4. The hood of claim 3, wherein said cooling means includes a
rib disposed on the interior of said head portion.
5. The hood of claim 4, wherein said cooling means further comprises
a gap in said front portion for creating a passageway for air entering
through the face opening to enter the hood.
6. The hood of claim 5, wherein said gap is created by a tube.
7. The hood of any one of claims 4, 5 or 6, wherein said cooling means
further includes a plurality of ribs on the interior of said head portion
to define a cushion of air in the interior of the hood.
8. The hood of any one of claims 1, to 7 , wherein said head portion is
profiled in a turban-like shape.
9. The hood of claims 1 to 8, wherein said neck portion restricting means
includes a draw string and a circumferential draw string enclosure for housing
10. The hood of claims 1 to 8, where in said neck portion restricting means
includes and elastic band secured to said neck portion, having two free end
having means for securing said end portions together.
11. The hood of claims 1 to 10, further comprising means for constricting the
12. The hood of claim 11 wherein said head portion constricting means is a
13. The hood of claim 12 wherein said hood cinching device includes two flaps
14. The hood of claims 1 to 13 wherein, said front portion has an extension
face opening, for receiving a mouth piece of a face mask in a gas-tight fit,
being made of the same material as the remainder of the front portion.
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|(41) Open to Public Inspection||1998-05-01|