US4843646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Firefighter's garments having enhanced flexibility and minimum weight
Assignee: Norcross Safety Products LLC
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Filing: 1988-04-18
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Granted: 1989-07-04
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Expires: 2008-04-18
Abstract
Abstract A firefighter's garment which includes a layer of protective material in which the layer of protective material is provided with a major portion which has a high degree of thermal protective properties. The layer of protective material also has sections which have a lesser degree of thermal protective properties. The portions of the layer of protective material which have a high degree of thermal protective properties are positioned at locations which require maximum thermal protection. The portions of the layer of protective material which have a lesser degree of thermal protective properties are located at positions which require less thermal protection. The portions of the layer of protective material which have a lesser degree of thermal protective properties also have greater flexibility and less bulk and less weight. Thus, the possibility of stress upon the firefighter is not effectively decreased when firefighter body posture during firefighting and the role of the protective equipment is considered.
Inventors
- 👤 William L. Grilliot
- 👤 Mary I. Grilliot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:37
CPC Classifications
A; A41; A41D; A41D13/00; A41D13/0002; A62; A62B; A62B17/00; A62B17/003
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
117 words
An article of firefighter's clothing which comprises a layer of flexible thermal insulation material, the layer of flexible thermal insulation material having a major portion provided with given thermal insulation qualities and having given flexibility qualities, the layer of flexible insulation material having a minor portion provided with thermal insulation qualities which are less than the given insulation qualities of the major portion of the layer of flexible thermal insulation material, the minor portion of the layer of flexible thermal insulation material having greater flexibility than the major portion of the layer of flexible insulation material, and a layer of flexible flame resistant and abrasion resistant material covering and enclosing the layer of flexible thermal insulation material.
Claim 2
Dependent Claim
117 words
An article of firefighter's clothing which comprises a layer of flexible thermal insulation material, the layer of flexible thermal insulation material having a major portion provided with given thermal insulation qualities and having given flexibility qualities, the layer of flexible insulation material having a minor portion provided with thermal insulation qualities which are less than the given insulation qualities of the major portion of the layer of flexible thermal insulation material, the minor portion of the layer of flexible thermal insulation material having greater flexibility than the major portion of the layer of flexible insulation material, and a layer of flexible flame resistant and abrasion resistant material covering and enclosing the layer of flexible thermal insulation material.
Claim 3
Dependent Claim
66 words
The article of firefighter's clothing according to claim 1 in which the article of firefighter's clothing comprises a flexible coat having a flexible body part and a pair of flexible sleeve parts, the flexible sleeve parts being attached to the flexible body part in juncture regions, the minor portion of the layer of flexible thermal insulation material being in the juncture regions of the flexible coat.
Claim 4
Dependent Claim
59 words
The article of firefighter's clothing according to claim 1 in which the article of firefighter's clothing comprises a flexible coat having a flexible body part and a pair of flexible sleeve parts, the flexible sleeve parts having elbow regions, the minor portion of the layer of flexible thermal insulation material being in the elbow regions of the flexible coat.
Claim 5
Dependent Claim
54 words
The article of firefighter's clothing according to claim 1 in which the article comprises flexible trousers having a pair of flexible leg parts, each flexible leg part having a knee section, the minor portion of the layer of flexible thermal insulation material being the knee sections of the leg parts of the flexible trousers.
Claim 6
Dependent Claim
75 words
The article of firefighter's clothing according to claim 1 which the article comprises flexible trousers having a flexible torso part and a pair of flexible leg parts, the flexible trousers having a juncture section at which the flexible leg parts are joined to the flexible torso part, the minor portion of the layer of flexible thermal insulation material being the juncture section at which the flexible leg parts are joined to the flexible torso part.
Claim 7
Dependent Claim
113 words
The article of firefighter's clothing according to claim 1 for a firefighter who wears boots and in which the article of firefighter's clothing comprises flexible trousers having a pair of flexible leg parts, each of the flexible leg parts having a flexible bottom edge and a flexible knee section, each of the flexible leg parts including a lower section which extends upwardly from the flexible bottom edge to the flexible knee portion, the lower section being adapted to be covered by a boot worn by the firefighter, the minor portion of the layer of flexible thermal insulation material being within the lower section of each of the flexible leg parts of the trousers.
Claim 8
Independent Claim
112 words
The method of producing a firefighter's garment comprising providing a layer of flexible thermal insulation material in which the layer of thermal insulation material has thermal insulation qualities of a given value and having a given flexibility, providing a piece of flexible thermal insulation material which has greater flexibility and lower thermal insulation qualities than the layer of thermal insulation material, inserting the piece of flexible thermal insulation material into the layer of thermal insulation material, forming the layer of flexible thermal insulation material and the piece of flexible thermal insulation material into the form of a garment, covering the garment with a flexible layer of abrasion protective and flame resistant material.
Claim 9
Independent Claim
112 words
The method of producing a firefighter's garment comprising providing a layer of flexible thermal insulation material in which the layer of thermal insulation material has thermal insulation qualities of a given value and having a given flexibility, providing a piece of flexible thermal insulation material which has greater flexibility and lower thermal insulation qualities than the layer of thermal insulation material, inserting the piece of flexible thermal insulation material into the layer of thermal insulation material, forming the layer of flexible thermal insulation material and the piece of flexible thermal insulation material into the form of a garment, covering the garment with a flexible layer of abrasion protective and flame resistant material.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-03 | 1993-01-02 | 1993-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-03 | 1997-01-02 | 1997-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-03 | 2001-01-02 | 2001-07-04 | $7700.00 | Window Closed / Lapsed |