US5001783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Firefighter's garments having minimum weight and excellent protective qualities
Assignee: Norcross Safety Products LLC
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Filing: 1989-11-13
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Granted: 1991-03-26
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Expires: 2009-11-13
Abstract
Abstract A firefighter's garment as disclosed herein may be a coat or trousers or a vest. The garment has an outer layer, an intermediate layer, and an inner layer. A spacer element or elements are positioned between two of the layers of the garment. The spacer element or elements in the firefighter's garment establish and maintain an air space or air spaces between the layers of the garment, even when localized pressure or weight is applied to portions of the garment. Thus, the firefighter's garment has excellent heat insulation qualities without being heavy and/or bulky. Thus, a firefighter wearing the garment is continually protected and is subject to minimum stress and is able to work more effectively than a firefighter wearing a firefighter's conventional garment.
Inventors
- 👤 William L. Grilliot
- 👤 Mary I. Grilliot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:57
CPC Classifications
B; B32; B32B; B32B3/00; B32B3/26; B32B3/28; A; A41; A41D; A41D31/00; A41D31/04; A41D31/08; A41D31/085; A62; A62B; A62B17/00; A62B17/003; Y; Y10; Y10S; Y10S428/00; Y10S428/92
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
118 words
A firefighhter's garment comprising firefighting protective insulative material, the garment including outer shell material which has moisture resistant and abrasion resistant and flame resistant qualities, the garment also including a layer of air spacer material which is covered by the outer shell, the air spacer material including flame resistant material having a degree of rigidity whereby a heat insulation air space is maintained within the firefighhter's garment in all situations in which a firefighter may be involved including situations in which localized external pressure is applied to the garment, the heat insulation air space in the firefighter's garment thus providing continuous and constant excellent insulation for thee firefighter against heat, and whereby the firefighther's garment has minimum weight.
Claim 2
Dependent Claim
118 words
A firefighhter's garment comprising firefighting protective insulative material, the garment including outer shell material which has moisture resistant and abrasion resistant and flame resistant qualities, the garment also including a layer of air spacer material which is covered by the outer shell, the air spacer material including flame resistant material having a degree of rigidity whereby a heat insulation air space is maintained within the firefighhter's garment in all situations in which a firefighter may be involved including situations in which localized external pressure is applied to the garment, the heat insulation air space in the firefighter's garment thus providing continuous and constant excellent insulation for thee firefighter against heat, and whereby the firefighther's garment has minimum weight.
Claim 3
Independent Claim
124 words
The method of construction of a firefighter's garment comprising providing firefighting protective insulation material having flame resistant and abrasion resistant and moisture resistant qualities, in which the firefighting protective material is in the form of at least one layer, providing heat insulation air spacer material having flame resistant qualities and having a degree of rigidly, covering the heat insulation air spacer material by at least one layer of the firefighting protective insulation material, whereby the heat insulation air spacer material establishes and maintains air space within the firefighter's garment even when localized external pressure is applied to the firefighter's garment, the heat insulation air spacer material thus providing air insulation for the firefighter against heat while permitting the firefighter's garment to have minimum weight.
Claim 4
Independent Claim
124 words
The method of construction of a firefighter's garment comprising providing firefighting protective insulation material having flame resistant and abrasion resistant and moisture resistant qualities, in which the firefighting protective material is in the form of at least one layer, providing heat insulation air spacer material having flame resistant qualities and having a degree of rigidly, covering the heat insulation air spacer material by at least one layer of the firefighting protective insulation material, whereby the heat insulation air spacer material establishes and maintains air space within the firefighter's garment even when localized external pressure is applied to the firefighter's garment, the heat insulation air spacer material thus providing air insulation for the firefighter against heat while permitting the firefighter's garment to have minimum weight.
Claim 5
Dependent Claim
139 words
A firefighter's garment which is adapted to cover a portion of the body of a firefighter, the firefighter's garment comprising flame resistant material and abrasion resistant material and moisture resistant material, the firefighter's garment also including heat insulation air spacer means, the heat insulation air spacer means being of heat resistant and flame resistant material, the heat insulation air spacer means including material having a degree of rigidity whereby an air space is maintained within the firefighter's garment in all situations in which a firefighter may be involved including situations in which localized external pressure is applied to the firefighter's garment, the air space in the firefighter's garment thus providing continuous and constant excellent thermal insulation protection, whereby the firefighter who wears the firefighhter's garment is protected against a heated environment and whereby the firefighther's garment has minimum weight.
Claim 6
Dependent Claim
139 words
A firefighter's garment which is adapted to cover a portion of the body of a firefighter, the firefighter's garment comprising flame resistant material and abrasion resistant material and moisture resistant material, the firefighter's garment also including heat insulation air spacer means, the heat insulation air spacer means being of heat resistant and flame resistant material, the heat insulation air spacer means including material having a degree of rigidity whereby an air space is maintained within the firefighter's garment in all situations in which a firefighter may be involved including situations in which localized external pressure is applied to the firefighter's garment, the air space in the firefighter's garment thus providing continuous and constant excellent thermal insulation protection, whereby the firefighter who wears the firefighhter's garment is protected against a heated environment and whereby the firefighther's garment has minimum weight.
Claim 7
Dependent Claim
21 words
The firefighter's garment of claim 3 inn which the air spacer means comprises a plurality of spaced-apart strips of flexible material.
Claim 8
Dependent Claim
18 words
The firefighther's garment of claim 3 in which the air spacer means comprises spaced-apart stacks of flexible material.
Claim 9
Dependent Claim
19 words
The firefighter's garment of claim 3 in which the air spacer means comprises spaced-apart strips of generally U-shape material.
Claim 10
Dependent Claim
91 words
The firefighter's garment of claim 3 in which the garment has an upper portion provided with porous material therein, and in which the heat insulation air spacer means comprises spaced-apart strips of material which extend upwardly within the garment and toward the porous material in the upper portion of the firefighter's garment, whereby body heat generated within the body of the firefighter and within the firefighhter's garment flows upwardly within the firefighter's garment and outwardly from the firefighter's garment through the porous material at the upper portion of the firefighter's garment.
Claim 11
Dependent Claim
82 words
The firefighhter's garment of claim 3 in which the garment has an upper portion provided with an opening therein, and in which the heat insulation air spacer means extends upwardly within the garment toward the opening in the upper portion of the firefighter's garment, whereby body heat generated within the body of the firefighter and within the firefighter's garment flows upwardly within the firefighter's garment and outwardly from the firefighhter's garment through the opening at the upper portion off the firefighhter's garment.
Claim 12
Dependent Claim
14 words
The firefighter's garment of claim 3 in which the firefighter's garment comprises a coat.
Claim 13
Dependent Claim
13 words
The firefighther's garment of claim 3 in which the firefighter's garment comprises trousers.
Claim 14
Independent Claim
138 words
The method of construction of a firefighter's garment which is adapted to cover at least a portion of the body of a firefighter comprising providing firefighting protective insulation material which has flame resistant and abrasion resistant and moisture resistant qualities, the firefighting protective insulation material also including heat insulation air spacer means which comprises flame resistant material and which has a degree of rigidity, forming the firefighting protective insulation material into a firefighhter's garment whereby the heat insulation air spacer means establishes and maintains air space within the firefighter's garment even when localized external pressure is applied to the firefighter's garment, the heat insulation air spacer means thus providing and maintaining thermal insulation in the firefighhter's garment whereby the firefighter who wears the firefighter's garment is protected against a heated environment while the firefighter's garment has minimum weight.
Claim 15
Independent Claim
138 words
The method of construction of a firefighter's garment which is adapted to cover at least a portion of the body of a firefighter comprising providing firefighting protective insulation material which has flame resistant and abrasion resistant and moisture resistant qualities, the firefighting protective insulation material also including heat insulation air spacer means which comprises flame resistant material and which has a degree of rigidity, forming the firefighting protective insulation material into a firefighhter's garment whereby the heat insulation air spacer means establishes and maintains air space within the firefighter's garment even when localized external pressure is applied to the firefighter's garment, the heat insulation air spacer means thus providing and maintaining thermal insulation in the firefighhter's garment whereby the firefighter who wears the firefighter's garment is protected against a heated environment while the firefighter's garment has minimum weight.
Claim 16
Dependent Claim
76 words
The method of claim 11 in which the firefighting protective insulation material which is provided in the form of at least one layer of material and in which the method includes providing heat insulation air spacer means in the form of strips of flame resistant material having a degree of rigidity and in which the method includes attaching the strips of flame resistant material in spaced-apart relationship to at least one off the layers of material.
Claim 17
Dependent Claim
97 words
The method of claim 11 in which the firefighter's garment has an upper portion and in which the method includes providing an opening at the upper portion of the firefighther's garment, and in which the method includes orienting the air spacer means inn an upwardly extending direction within the firefighter's garment and toward the opening at the upper portion thereof, whereby body heat generated within the firefighter and within the garment flows upwardly within the air spacer means and within the garment and outwardly from the garment through the opening at the upper portion of the garment.
Claim 18
Dependent Claim
110 words
The method of claim 11 in which the firefighter's garment has an upper portion, and in which the method includes providing an opening in the upper portion of the firefighter's garment and in which the method includes providing the heat insulation air spacer means in the form of strips of flame resistant material, and in which the method includes arranging the strips of flame resistant material in an upwardly extending spaced-apart relationship within the garment, whereby body heat generated within the firefighter and within the firefighter's garment flows upwardly within the firefighter's garment and outwardly from the firefighter's garment through thee opening in the upper portion of the firefighter's garment.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-03-25 | 1994-09-24 | 1995-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-03-25 | 1998-09-24 | 1999-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-03-25 | 2002-09-24 | 2003-03-26 | $7700.00 | Window Closed / Lapsed |