Patent US3669191A successfully refreshed from Google Patents.
US3669191A
Expired / Lapsed
US
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Method of fighting a fire
Assignee: Factory Mutual Research Corp
•
Filing: 1971-02-12
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Granted: 1972-06-13
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Expires: 1991-02-12
Abstract
Abstract A method of fighting a fire comprising the steps of discharging an ablative fluid towards the fire from an elevated position relative to the floor of the structure to be protected, and manually applying an ablative fluid to the fire.
Inventors
- 👤 William L Livingston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:05
CPC Classifications
A; A62; A62C; A62C99/00; A62C99/009
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
25 words
The method of claim 1 wherein the extinguishant applied in said step of discharging and in said step of manually applying is an ablative fluid.
Claim 2
Dependent Claim
30 words
The method of claim 1 wherein said step of manually applying comprises the step of directing said portion of said extinguishant towards portions of said fire shielded by said materials.
Claim 3
Dependent Claim
22 words
The method of claim 1 further comprising the step of terminating said step of discharging prior to said step of manually applying.
Claim 4
Dependent Claim
23 words
The method of claim 1 further comprising the step of reducing the discharge rate of extinguishant prior to said step of manually applying.
Claim 5
Dependent Claim
18 words
The method of claim 1 wherein said step of manually applying is done during said step of discharging.
Claim 6
Independent Claim
78 words
A method of fighting a fire comprising the steps of disposing a fixed fire extinguishing system in an elevated position relative to the floor of the structure to be protected from fire, discharging an extinguishant from said system at a predetermined rate in response to a fire situation occurring in a particular area of said structure, reducing said predetermined rate of extinguishant discharge, and then manually applying an extinguishant of a viscosity greater than water to said area.
Claim 7
Dependent Claim
13 words
The method of claim 7 wherein said predetermined rate is reduced to zero.
Claim 8
Dependent Claim
24 words
The method of claim 7 wherein the extinguishant applied in said step of discharging and in said step of applying is an ablative fluid.
Claim 9
Dependent Claim
30 words
The method of claim 7 wherein said step of manually applying comprises the step of directing said extinguishant towards portions of said fire shielded by materials stored in said area.
Claim 10
Independent Claim
78 words
A method of fighting a fire comprising the steps of disposing a fixed fire extinguishing system in an elevated position relative to the floor of the structure to be protected from fire, connecting said system to a first source of extinguishant, discharging said extinguishant from said system in response to a fire situation occurring in a particular area of said structure, and manually applying a second source of extinguishant of a viscosity greater than water to said area.
Claim 11
Dependent Claim
41 words
The method of claim 11 wherein said first source of extinguishant is directed to predetermined areas within said structure and wherein said second source of extinguishant is directed towards portions of said fire shielded by the materials stored in said structure.
Claim 12
Dependent Claim
33 words
The method of claim 11 wherein each of said sources of extinguishant is an ablative fluid formed by the step of mixing an ablative material and water prior to said step of discharging.
Claim 13
Dependent Claim
35 words
The method of claim 13 wherein the ratio of ablative material to water for said first source of extinguishant is different than the ratio of ablative fluid to water for said second source of extinguishant.
Claim 14
Dependent Claim
22 words
The method of claim 11 further comprising the step of terminating said step of discharging prior to said step of manually applying.
Claim 15
Dependent Claim
23 words
The method of claim 11 further comprising the step of reducing the discharge rate of extinguishant prior to said step of manually applying.
Claim 16
Dependent Claim
18 words
The method of claim 11 wherein saiD step of manually applying is done during said step of discharging.
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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) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |