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Patent 2203988 Summary

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Claims and Abstract availability

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(12) Patent: (11) CA 2203988
(54) English Title: NON SLIPPING LAMINATE MULTIFILAMENT OUTER SHELL FOR FIREFIGHTER GARMENT
(54) French Title: ETOFFE EXTERIEURE DE MULTIFILAMENTS LAMINEE ET NON GLISSANTE POUR UN VETEMENT DE POMPIER
Status: Expired
Bibliographic Data
(51) International Patent Classification (IPC):
  • A62B 17/00 (2006.01)
  • A41D 31/08 (2019.01)
  • A41D 31/00 (2019.01)
  • D03D 1/00 (2006.01)
  • D03D 15/12 (2006.01)
(72) Inventors :
  • BARBEAU, CLAUDE (Canada)
  • COCHRAN, ROSS (Canada)
(73) Owners :
  • SPERIAN PROTECTIVE APPAREL, LTD. (Not Available)
(71) Applicants :
  • MARCANADA INC. (Canada)
(74) Agent: GOWLING WLG (CANADA) LLP
(74) Associate agent:
(45) Issued: 2003-07-22
(22) Filed Date: 1997-04-29
(41) Open to Public Inspection: 1998-10-29
Examination requested: 1997-04-29
Availability of licence: N/A
(25) Language of filing: English

Patent Cooperation Treaty (PCT): No

(30) Application Priority Data: None

Abstracts

English Abstract



The outer shell consists of a plain weave multifilament fabric
derived from aramid, polymide, polyamide or polybenzimidazole yarns.
The inner sheet is a woven, non-woven or knitted material. The two sheets
are laminated with an adhesive which enables the two sheets to be
laminated in such a manner that the two sheets are non slipping with respect
to one another while enabling the laminate to be air permeable with a
minimum of ten (10) cubic feet per minute (CFM), when tested in
accordance with ASTM D737.


French Abstract

L'invention porte sur un vêtement dont l'étoffe extérieure est faite à partir d'un tissu multifilaments à armure toile dérivé de fils d'aramide, de polyimide, de polyamide ou de polybenzimidazole. La feuille interne est un matériel tissé, non tissé ou tricoté. Les deux feuilles sont laminées au moyen d'un adhésif de telle manière qu'elles ne glissent pas l'une par rapport à l'autre. Toutefois, l'adhésif permet au laminé d'avoir une perméabilité à l'air d'au moins dix (10) pieds cubes-minute lorsque testé selon ASTM D737.

Claims

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




CLAIMS

1. In a firefighter garment including a fire-resistant outer shell, moisture
barrier and
thermal liner, the improvement wherein said outer shell comprises a laminate
formed of a
first sheet of plain weave fabric derived from inherently fire-resistant
multfilamentary
aramid, polyimide, polyamide, polybenzimidazole yarns or mixtures thereof; a
second sheet
of woven, on-woven or knitted fire-resistant textile material, and said first
sheet and said
second sheet being laminated with a spider web bond or a plurality of dot
bonds
therebetween, so that said first sheet and said second sheet are non slipping
relative to one
another and such that fraying of either sheet is inhibited while enabling said
laminate to be air
permeable, with a minimum of ten (10) cubic air feet per minute (CFM), when
tested in
accordance with ASTM D737.

2. A firefighter garment according to claim 1, wherein said first sheet
consists of a
weave of warp and weft yarns which are multifilamentary aramid, polyimide or
polybenzimidazole yarns.

3. A firefighter garment according to claim 1, wherein said first sheet
consists of a plain
weave of multifilamentary aramid yarns.

4. A firefighter garment according to claim 1, wherein said second sheet is a
woven
material.

5. A firefighter garment according to claim 1, wherein said second sheet is a
non-woven
material.

6. A firefighter garment according to claim 1, wherein said second sheet is a
knitted
material.

Description

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


CA 02203988 1997-04-29



NON SLIPPING LAMINATE MULTIFILAMENT
OUTER SHELL FOR FIREFIGHTER GARMENT

This invention relates to an improved outer shell for a fire-resistant
5 garment, such as a firefighter protective garmcnt. More p~i ' '.y, the
present mvention is concemed with a laminated outer shell made of plain
' ~' woven fabric and amother textile or non textile material,
which is non slippmg and non fraying and is more resistant than those made
from a twill fabric or has a better air p, ' ' ~ than those which are
10 coated with am amtislip finish. The air p~ ly must be of at leat ten
(10) cubic feet per minute (CFM), when tested in accu d with ASTM
D737.
Fil~ 5v' protective garments usually consist of three or more
discrete layers of fire-resistant materials. The various layers are nommally:
1) the outer shell which provides protection against puncture, cuts,
flame and heat;
2) the moisture barrier substrate and moisture barrier polymer which,
although fire-resistant, have as their principal purpose protection against
liquid ~ ~ (in certain cases they are pemmeable to p~ n vapor
20 to increase wearer comfort);
3) the themmal barrier msulation whose principal function is to
provide protection against heat transfer; and
4) the irmer lining or face cloth (which is nommally quilted to the
themnal barrier insulation) which protects the themmal barrier from wear
25 from the inside of the garment, and provides a last layer of heat amd flame

An outer shell of good quality does not slip or fray. Slippmg occurs
when yarns of one direction, e.g. warp, are displaced laterally with respect
to the yams in the other direction, e.g. fill. Fraying occurs when yarns
30 separate from the fabric matrix at the exposed edges of fabric weave.
Slipping and fraying are common to " ''1 fabrics.
Slipping amd fraying m non-fire resistimt fabrics of ' ~' y
yams can be controlled by heat setting. However, the iuherently fire-
resist~mt properties of the " ~' y yarns ~. . v many fire-
35 resistant fabrics render heat setting ~ ve.
One method of u.~,.. v slippage and fraying of fabrics consistingof ' ~1 y yarns is to introduce a certain plUIJUll.iOn of spun yarns


-1-

CA 02203988 1997-04-29



into either the warp direction, the fill direction or both warp and fill
directions of the fabric weave. However, the d;~ - in ' l,
chemical and fire-resistant properties between the ' ~1 ~ and
spun yarns may create a fabric that does not have the desired 1~

Another method for o.~ , slippage and fraying consists of a
coating or laminated fihm on one or both surfaces of the fabric to
immobilize the yarns with respect to one another. However, this method
reduces the air p, ' lity of the fabric and may render a garment made of
the fabric less ~
It is an object of the present mvention to provide an outer shell for a
firefighter garment which is free of slippage and fraying and which is also
permeable to air.
It is another object of the present invention to provide an outer shell
for a fire-resistant galment which ~ the insulation value to weight
ratio of the garment.
Outer shells for fire-resistant garments are disclosed im the following
U.S. Patents:
4,188,445
4,255,817
4,937,136
5,007,112
5,014,357
5,050,241
5,136,723.
However, none of these references teach a product which combines
maximum insulation with reduced slippage and fraying.
The above and other objects of the present invention may be
achieved in an outer shell for firefighter garment which comprises a
laminate formed of a first sheet of plain weave ' ~' fabric derived
from aramid, polyimide, polyamide, pol~ le yarns and a second
sheet of woven, non-woven or lmitted material. A&esive means enable the
first sheet and the second sheet to be laminated in such a manner that the
first sheet and the second sheet are each non slipping relative to one
another, and such that fraying of the mdividual sheets is inhibited, while
enabling the resulting laminate to be air permeable with a minimum of ten

CA 02203988 l997-04-29



(10) cubic feet per minute (CFM) when tested in acco~ e with ASTM
D737.
Preferably, the first sheet consists of a weave of warp and weft yarns
which are ' ~' y aramid, polyimide or polyl,. ' '- yarns.
5 The second sheet may be made of woven, non-woven, or knitted material.
The first sheet preferably consists of a plam weave of
' ~1 y aramid yarns.
In acco,~1 ~ e with a preferred ~ ' t, the first sheet and the
second sheet are laminated with a spider web bond or a plurality of dot
10 bonds :' ~,I,e~ allowing the laminate to be air p, ' '
The laminate according to the mvention is prepared by any well
known 1 ~ process except that the adhesive is deposited such as by
spraying so as to produce a spider web bond rather than a ~ film,
thereby enabling the laminate to be air p. ''- An example of the
15 adhesive that may be used includes the moisture curing PUR prepolymer
hot melt adhesive.

Representative Drawing

Sorry, the representative drawing for patent document number 2203988 was not found.

Administrative Status

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.

Administrative Status

Title Date
Forecasted Issue Date 2003-07-22
(22) Filed 1997-04-29
Examination Requested 1997-04-29
(41) Open to Public Inspection 1998-10-29
(45) Issued 2003-07-22
Expired 2017-05-01

Abandonment History

There is no abandonment history.

Payment History

Fee Type Anniversary Year Due Date Amount Paid Paid Date
Request for Examination $400.00 1997-04-29
Registration of a document - section 124 $100.00 1997-04-29
Application Fee $300.00 1997-04-29
Maintenance Fee - Application - New Act 2 1999-04-29 $100.00 1999-04-07
Maintenance Fee - Application - New Act 3 2000-05-01 $100.00 2000-03-06
Maintenance Fee - Application - New Act 4 2001-04-30 $100.00 2001-04-20
Maintenance Fee - Application - New Act 5 2002-04-29 $150.00 2002-04-29
Final Fee $300.00 2003-03-12
Registration of a document - section 124 $50.00 2003-04-02
Maintenance Fee - Application - New Act 6 2003-04-29 $150.00 2003-04-29
Maintenance Fee - Patent - New Act 7 2004-04-29 $200.00 2004-04-28
Maintenance Fee - Patent - New Act 8 2005-04-29 $200.00 2005-04-12
Maintenance Fee - Patent - New Act 9 2006-05-01 $200.00 2006-03-14
Maintenance Fee - Patent - New Act 10 2007-04-30 $250.00 2007-04-30
Maintenance Fee - Patent - New Act 11 2008-04-29 $250.00 2008-03-06
Maintenance Fee - Patent - New Act 12 2009-04-29 $250.00 2009-04-08
Maintenance Fee - Patent - New Act 13 2010-04-29 $250.00 2010-04-14
Maintenance Fee - Patent - New Act 14 2011-04-29 $250.00 2011-03-17
Maintenance Fee - Patent - New Act 15 2012-04-30 $450.00 2012-03-21
Maintenance Fee - Patent - New Act 16 2013-04-29 $450.00 2013-03-21
Registration of a document - section 124 $100.00 2013-12-16
Registration of a document - section 124 $100.00 2013-12-16
Registration of a document - section 124 $100.00 2013-12-16
Maintenance Fee - Patent - New Act 17 2014-04-29 $450.00 2014-03-20
Maintenance Fee - Patent - New Act 18 2015-04-29 $450.00 2015-03-17
Maintenance Fee - Patent - New Act 19 2016-04-29 $450.00 2016-03-15
Owners on Record

Note: Records showing the ownership history in alphabetical order.

Current Owners on Record
SPERIAN PROTECTIVE APPAREL, LTD.
Past Owners on Record
4120001 CANADA INC.
BACOU-DALLOZ PROTECTIVE APPAREL LTD.
BARBEAU, CLAUDE
COCHRAN, ROSS
MARCANADA INC.
STX PROTECTIVE APPAREL INC.
Past Owners that do not appear in the "Owners on Record" listing will appear in other documentation within the application.
Documents

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Document
Description 
Date
(yyyy-mm-dd) 
Number of pages   Size of Image (KB) 
Cover Page 2003-06-17 1 28
Description 2003-07-21 3 91
Abstract 2003-07-21 1 10
Abstract 1997-04-29 1 10
Description 1997-04-29 3 91
Claims 1997-04-29 1 29
Cover Page 1998-11-10 1 35
Claims 2001-09-04 1 46
Claims 2002-06-12 1 36
Prosecution-Amendment 2002-06-12 3 76
Correspondence 2003-03-12 1 34
Assignment 2003-04-02 8 249
Correspondence 2003-05-30 1 13
Prosecution-Amendment 2001-09-04 3 121
Assignment 1997-04-29 5 123
Prosecution-Amendment 2001-12-12 1 44
Prosecution-Amendment 2001-03-05 2 63
Correspondence 2009-05-14 1 16
Correspondence 2009-11-05 1 13
Correspondence 2009-11-02 1 41
Assignment 2013-12-16 10 468
Correspondence 2013-12-20 3 87
Correspondence 2014-01-30 1 11
Correspondence 2014-01-30 1 17