Patent US3592269A successfully refreshed from Google Patents.
US3592269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-contained foam fire extinguishing system
Assignee: Individual
•
Filing: 1968-12-09
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Granted: 1971-07-13
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Expires: 1988-12-09
Abstract
Abstract A self-contained high-expansion foam fire extinguishing system providing an independent source of pressurization to a container holding a mixture of water and foam concentrate for delivery to a foam generator having a plurality of nozzle members and a screen to produce high-expansion foam upon activation of the system by a fire detecting sensor.
Inventors
- 👤 Howard C Stults
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:16
CPC Classifications
A; A62; A62C; A62C5/00; A62C5/02; A62C5/022; Y; Y10; Y10S; Y10S261/00; Y10S261/26
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
118 words
An improved fire extinguishing system of the type employing high-expansion foam, the improvement comprising: a. a reservoir containing a premixed, high-expansion fluid; b. a foam generaTor including: 1. a plurality of nozzle members coupled to said reservoir; 2. a screen disposed opposite said nozzles, said foam generator having top, bottom and side enclosures, said bottom enclosure extending from said screen to a distance substantially in the vacinity of said nozzles and said top enclosure extending from said screen substantially beyond said nozzles whereby air is drawn into said foam generator through an opening defined by said enclosures when fluid is caused to be discharged through said nozzles for projection upon said screen where said highexpansion foam is generated.
Claim 2
Dependent Claim
118 words
An improved fire extinguishing system of the type employing high-expansion foam, the improvement comprising: a. a reservoir containing a premixed, high-expansion fluid; b. a foam generaTor including: 1. a plurality of nozzle members coupled to said reservoir; 2. a screen disposed opposite said nozzles, said foam generator having top, bottom and side enclosures, said bottom enclosure extending from said screen to a distance substantially in the vacinity of said nozzles and said top enclosure extending from said screen substantially beyond said nozzles whereby air is drawn into said foam generator through an opening defined by said enclosures when fluid is caused to be discharged through said nozzles for projection upon said screen where said highexpansion foam is generated.
Claim 3
Dependent Claim
20 words
a plurality of nozzle means coupled to said spaced openings in said manifold means, said nozzle means outputting foam concentrate;
Claim 4
Dependent Claim
20 words
a plurality of nozzle means coupled to said spaced openings in said manifold means, said nozzle means outputting foam concentrate;
Claim 5
Dependent Claim
26 words
The fire extinguishing system defined in claim 1, wherein said screen is disposed at an angle relative to said streams of fluid discharged by said nozzles.
Claim 6
Dependent Claim
80 words
a screen disposed opposite said nozzles, said foam generator having top, bottom and side enclosures, said bottom enclosure extending from said screen to a distance substantially in the vacinity of said nozzles and said top enclosure extending from said screen substantially beyond said nozzles whereby air is drawn into said foam generator through an opening defined by said enclosures when fluid is caused to be discharged through said nozzles for projection upon said screen where said high-expansion foam is generated.
Claim 7
Dependent Claim
80 words
a screen disposed opposite said nozzles, said foam generator having top, bottom and side enclosures, said bottom enclosure extending from said screen to a distance substantially in the vacinity of said nozzles and said top enclosure extending from said screen substantially beyond said nozzles whereby air is drawn into said foam generator through an opening defined by said enclosures when fluid is caused to be discharged through said nozzles for projection upon said screen where said high-expansion foam is generated.
Claim 8
Dependent Claim
26 words
The fire extinguishing system defined in claim 1, wherein said screen has disposed over the exterior surfaces thereof a thin coating of hammertone or crackle paint.
Claim 9
Dependent Claim
12 words
screen means for generating foam when struck by the foam concentrate; and
Claim 10
Dependent Claim
12 words
screen means for generating foam when struck by the foam concentrate; and
Claim 11
Dependent Claim
19 words
enclosure means for defining an opening through which ambient air is drawn by the output of said foam concentrate.
Claim 12
Dependent Claim
19 words
enclosure means for defining an opening through which ambient air is drawn by the output of said foam concentrate.
Claim 13
Dependent Claim
15 words
The fire extinguishing system as in claim 2 wherein said angle is an acute angle.
Claim 14
Dependent Claim
20 words
The fire extinguishing system defined in claim 4, wherein said angle is in the range from 25* to 35* .
Claim 15
Dependent Claim
61 words
A fire extinguishing system of the type using high-expansion foam comprising: a. self-contained source means for containing pressurized gas; b. reservoir means coupled to said self-contained source means wherein said reservoir means contains a premixed high-expansion foam producing concentrate; c. foam generating means for drawing air into same and generating foam coupled to said reservoir means, said foam generating means comprising:
Claim 16
Dependent Claim
61 words
A fire extinguishing system of the type using high-expansion foam comprising: a. self-contained source means for containing pressurized gas; b. reservoir means coupled to said self-contained source means wherein said reservoir means contains a premixed high-expansion foam producing concentrate; c. foam generating means for drawing air into same and generating foam coupled to said reservoir means, said foam generating means comprising:
Claim 17
Dependent Claim
14 words
A system as in claim 6 wherein said pressurized gas is an inert gas.
Claim 18
Dependent Claim
45 words
A fire extinguishing system using a high-expansion foam concentrate as in claim 6 wherein said screen means has a plurality of holes therein and is covered with a layer of paint means for generating foam which forms a rough cracked surface on said screen means.
Claim 19
Dependent Claim
34 words
A system as in claim 8 wherein said holes in said foam generating screen means are three sixteenth inch in diameter and the distance between the centerlines of the holes is one fourth inch.
Claim 20
Dependent Claim
24 words
The system as in claim 8 wherein the hole area constitutes less than half of the total surface area of the foam generating screen.
Claim 21
Dependent Claim
17 words
The system as in claim 8 wherein the paint means is less than one one-thousandth inch thick.
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) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |