Patent US4729434A successfully refreshed from Google Patents.
US4729434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable fire-fighting apparatus
Assignee: PTI Group Inc
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Filing: 1986-04-28
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Granted: 1988-03-08
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Expires: 2006-04-28
Abstract
Abstract A portable fire fighting apparatus has a plurality of tanks containing a variety of fire fighting agents, a piping arrangement for selectively connecting the tanks to respective discharge nozzles, and a central control panel which is provided with a plurality of control valves and elements for selectively controlling the discharge of the fire extinguishing agents through the nozzles. In a preferred embodiment, the apparatus has three tanks containing water, a chemical fire extinguishing agent, and a foam concentrate, respectively. Water only or a water/foam concentrate mixture is controllably discharged through a first nozzle, while the chemical fire extinguishing agent may be separately or simultaneously discharged through a second nozzle. A piping arrangement for purging the nozzles following discharge is provided and is controllable from the central control panel. The apparatus may be adapted for mounting on a truck, a forklift, or other vehicle. The preferred capacity of the water tank is approximately 200 gallons, the preferred capacity of the chemical tank is approximately 500 pounds, and the preferred capacity of the foam concentrate tank is approximately 15 gallons.
Inventors
- 👤 Jerry T. Rohrbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:30
CPC Classifications
A; A62; A62C; A62C27/00; Y; Y10; Y10S; Y10S261/00; Y10S261/26
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
325 words
A fire-fighting apparatus, comprising: a frame having two ends and two sides; a first tank supported on a first end of the frame and containing a quantity of water; means for selectively connecting the first tank to a first discharge nozzle; a second tank supported on the frame and containing a quantity of chemical fire-extinguishing agent; means for selectively connecting the second tank to a second discharge nozzle; a third tank supported on the frame and containing a foam concentrate; means for selectively connecting the third tank to the first discharge nozzle and for mixing a predetermined quantity of foam concentrate with water flowing from the first tank to the first discharge nozzle; means for pressurizing the first, second and third tanks with a compressed fluid; a hose reel supported on a second end of the frame; a central control panel supported on the second end of the frame adjacent the hose reel, said control panel having first and second sides respectively supported by first and second sides of the frame; and control means, mounted on the central control panel and connected to the means for connecting the first, second and third tanks to the first and second discharge nozzles, for selectively controlling the supply of water, foam concentrate and chemical fire-extinguishing agent to the first and second nozzles, respectively, and for selectively controlling the refilling of the first, second and third tanks, and for selectively controlling the purging of the means for connecting the first, second and third tanks to the first and second discharge nozzles; wherein said control means includes a plurality of control elements mounted on the first side of the control panel for controlling the discharge, purging, metering and mixing of water and foam concentrate from the first and third tanks, and a plurality of control elements mounted on the second side of the control panel for controlling the discharge, purging, and refill of chemical fire-extinguishing agent from the second tank.
Claim 2
Dependent Claim
325 words
A fire-fighting apparatus, comprising: a frame having two ends and two sides; a first tank supported on a first end of the frame and containing a quantity of water; means for selectively connecting the first tank to a first discharge nozzle; a second tank supported on the frame and containing a quantity of chemical fire-extinguishing agent; means for selectively connecting the second tank to a second discharge nozzle; a third tank supported on the frame and containing a foam concentrate; means for selectively connecting the third tank to the first discharge nozzle and for mixing a predetermined quantity of foam concentrate with water flowing from the first tank to the first discharge nozzle; means for pressurizing the first, second and third tanks with a compressed fluid; a hose reel supported on a second end of the frame; a central control panel supported on the second end of the frame adjacent the hose reel, said control panel having first and second sides respectively supported by first and second sides of the frame; and control means, mounted on the central control panel and connected to the means for connecting the first, second and third tanks to the first and second discharge nozzles, for selectively controlling the supply of water, foam concentrate and chemical fire-extinguishing agent to the first and second nozzles, respectively, and for selectively controlling the refilling of the first, second and third tanks, and for selectively controlling the purging of the means for connecting the first, second and third tanks to the first and second discharge nozzles; wherein said control means includes a plurality of control elements mounted on the first side of the control panel for controlling the discharge, purging, metering and mixing of water and foam concentrate from the first and third tanks, and a plurality of control elements mounted on the second side of the control panel for controlling the discharge, purging, and refill of chemical fire-extinguishing agent from the second tank.
Claim 3
Dependent Claim
35 words
A fire-fighting apparatus according to claim 1, wherein the means for pressurizing the first, second and third tanks and for purging the first nozzle and its associated connecting means includes a source of compressed fluid.
Claim 4
Dependent Claim
37 words
A fire-fighting apparatus according to claim 2, wherein the control elements for controlling the purging operations are connected to the source of compressed fluid and to the respective nozzles and connecting means by non-metallic, relatively flexible piping.
Claim 5
Dependent Claim
38 words
A fire-fighting apparatus according to claim 1, wherein said means for connecting the first and third tanks to the first discharge nozzle includes a foam inductor serially connected between the first nozzle and the first and third tanks.
Claim 6
Dependent Claim
22 words
A fire-fighting apparatus according to claim 4, wherein the foam inductor has a fluid carrying capacity of approximately 60 gallons per minute.
Claim 7
Dependent Claim
14 words
A fire-fighting apparatus according to claim 1, wherein the chemical fire-extinguishing agent is Halon.
Claim 8
Dependent Claim
29 words
A fire-fighting apparatus according to claim 1, wherein the control elements for controlling refill of chemical fire-extinguishing agent are connected to the second tank by non-metallic, relatively flexible tubing.
Claim 9
Dependent Claim
23 words
A fire-fighting apparatus according to claim 1, wherein the frame is adapted to allow the apparatus to be carried by a forklift truck.
Claim 10
Dependent Claim
22 words
A fire-fighting apparatus according to claim 1, wherein the frame is adapted to allow the apparatus to be mounted on a truck.
Claim 11
Dependent Claim
39 words
A fire-fighting apparatus according to claim 1, wherein the capacity of the first tank is approximately 200 gallons, the capacity of the second tank is approximately 500 pounds, and the capacity of the third tank is approximately 15 gallons.
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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) | 1991-03-08 | 1991-09-07 | 1992-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-08 | 1995-09-07 | 1996-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-08 | 1999-09-07 | 2000-03-08 | $7700.00 | Window Closed / Lapsed |