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):
  • A62B 18/02 (2006.01)
(72) Inventors (Country):
  • SAJJAN, HARJIT SINGH (Canada)
(73) Owners (Country):
  • SAJJAN, HARJIT SINGH (Canada)
(71) Applicants (Country):
  • SAJJAN, HARJIT SINGH (Canada)
(74) Agent: YANG, MARK MING-JEN
(45) Issued: 2006-10-17
(22) Filed Date: 1996-11-01
(41) Open to Public Inspection: 1998-05-01
Examination requested: 2001-11-01
(30) Availability of licence: N/A
(30) Language of filing: English

English Abstract

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.


French Abstract

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.


Note: Claims are shown in the official language in which they were submitted.


CLAIMS:
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
piece, comprising:
(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
wearer.
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.





NEW CLAIMS
9. The hood of claims 1 to 8, wherein said neck portion restricting means
further
includes a draw string and a circumferential draw string enclosure for housing
said draw
string.
10. The hood of claims 1 to 8, where in said neck portion restricting means
further
includes and elastic band secured to said neck portion, having two free end
portions and
having means for securing said end portions together.
11. The hood of claims 1 to 10, further comprising means for constricting the
head
portion.
12. The hood of claim 11 wherein said head portion constricting means is a
cinching
device.
13. The hood of claim 12 wherein said hood cinching device includes two flaps
and a
zipper.
14. The hood of claims 1 to 13 wherein, said front portion has an extension
across the
face opening, for receiving a mouth piece of a face mask in a gas-tight fit,
said extension
being made of the same material as the remainder of the front portion.


A single figure which represents the drawing illustrating the invention.

For a clearer understanding of the status of the application/patent presented on this page, the site Disclaimer , as well as the definitions for Patent , Administrative Status , Maintenance Fee  and Payment History  should be consulted.

Admin Status

Title Date
(22) Filed 1996-11-01
(41) Open to Public Inspection 1998-05-01
Examination Requested 2001-11-01
(45) Issued 2006-10-17

Payment History

Fee Type Anniversary Year Due Date Amount Paid Paid Date
Filing $0.00 1996-11-01
Maintenance Fee - Application - New Act 2 1998-11-02 $50.00 1998-11-02
Maintenance Fee - Application - New Act 3 1999-11-01 $50.00 1999-11-01
Maintenance Fee - Application - New Act 4 2000-11-01 $50.00 2000-10-27
Request for Examination $200.00 2001-11-01
Reinstatement: Failure to Pay Application Maintenance Fees $200.00 2001-12-13
Maintenance Fee - Application - New Act 5 2001-11-01 $75.00 2001-12-13
Maintenance Fee - Application - New Act 6 2002-11-01 $75.00 2002-10-31
Maintenance Fee - Application - New Act 7 2003-11-03 $75.00 2003-10-23
Registration of Documents $100.00 2004-07-12
Maintenance Fee - Application - New Act 8 2004-11-01 $100.00 2004-07-12
Registration of Documents $100.00 2005-03-09
Reinstatement - failure to pay final fee $200.00 2005-12-20
Reinstatement: Failure to Pay Application Maintenance Fees $200.00 2005-12-20
Final $150.00 2005-12-20
Maintenance Fee - Application - New Act 9 2005-11-01 $100.00 2005-12-20
Maintenance Fee - Patent - New Act 10 2006-11-01 $125.00 2006-10-23
Maintenance Fee - Patent - New Act 11 2007-11-01 $125.00 2007-10-10
Maintenance Fee - Patent - New Act 12 2008-11-03 $125.00 2008-10-09
Maintenance Fee - Patent - New Act 13 2009-11-02 $125.00 2009-11-02
Maintenance Fee - Patent - New Act 14 2010-11-01 $325.00 2011-01-13
Maintenance Fee - Patent - New Act 15 2011-11-01 $225.00 2011-10-31
Maintenance Fee - Patent - New Act 16 2012-11-01 $225.00 2012-10-16
Maintenance Fee - Patent - New Act 17 2013-11-01 $225.00 2013-11-01
Maintenance Fee - Patent - New Act 18 2014-11-03 $225.00 2014-09-16
Registration of Documents $100.00 2015-10-27
Maintenance Fee - Patent - New Act 19 2015-11-02 $225.00 2015-10-27

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Description
Date
(yyyy-mm-dd)
Number of pages Size of Image (KB)
Abstract 1997-03-20 1 16
Claims 2006-03-16 3 75
Claims 2004-07-07 2 56
Claims 1997-03-20 6 128
Correspondence 2006-02-24 1 18
Correspondence 2005-12-20 2 118
Correspondence 2005-11-25 3 131
Correspondence 2005-11-24 1 25
Correspondence 2005-11-24 1 26
Correspondence 2005-06-14 1 24
Correspondence 2005-06-15 1 49
Correspondence 2005-06-14 1 16
Correspondence 2005-06-14 1 16
Correspondence 2005-05-30 1 24
Correspondence 2005-04-18 3 142
Correspondence 2005-04-22 1 21
Correspondence 2004-08-17 1 17
Correspondence 2004-08-17 1 14
Correspondence 2004-08-16 1 17
Correspondence 2004-07-23 3 83
Correspondence 2004-03-04 1 18
Correspondence 2004-03-04 1 17
Correspondence 2003-12-17 22 997
Correspondence 2003-12-17 21 857
Correspondence 2002-02-26 6 228
Correspondence 2002-02-13 6 230
Correspondence 2002-03-20 1 16
Correspondence 2002-03-20 1 14
Correspondence 2002-03-05 8 296
Cover Page 2006-09-19 1 30
Cover Page 1998-05-19 1 46
Cover Page 1997-03-20 1 16
Description 1997-03-20 10 312
Drawings 1997-03-20 8 51
Fees 2015-10-27 1 33
Fees 2014-09-16 1 33
Fees 2013-11-01 1 33
Fees 2012-10-16 1 163
Fees 2011-10-31 1 163
Fees 2011-01-13 1 245
Fees 2009-11-02 1 23
Fees 2008-10-09 1 15
Fees 2007-10-10 1 18
Fees 2006-10-23 1 21
Fees 2005-12-20 2 103
Fees 2004-07-12 1 18
Fees 1999-11-01 1 33
Fees 2002-10-31 1 33
Fees 2001-11-01 1 32
Fees 1998-11-02 1 36
Fees 2001-12-13 1 39
Fees 2000-10-27 1 28
Fees 2003-10-23 1 33
Prosecution-Amendment 2006-03-16 4 91
Prosecution-Amendment 2006-01-09 2 55
Prosecution-Amendment 2006-01-05 3 125
Prosecution-Amendment 2005-11-30 1 35
Prosecution-Amendment 2005-08-18 1 29
Prosecution-Amendment 2004-07-07 47 2,562
Prosecution-Amendment 2004-02-16 3 130
Prosecution-Amendment 2002-02-26 8 300
Prosecution-Amendment 2001-11-01 1 43
Representative Drawing 2004-12-02 1 4
Representative Drawing 1998-05-19 1 11