US3607779A - Foam generator - Google Patents
Foam generator Download PDFInfo
- Publication number
- US3607779A US3607779A US848215A US3607779DA US3607779A US 3607779 A US3607779 A US 3607779A US 848215 A US848215 A US 848215A US 3607779D A US3607779D A US 3607779DA US 3607779 A US3607779 A US 3607779A
- Authority
- US
- United States
- Prior art keywords
- turbine
- shaft
- pump
- housing
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000006260 foam Substances 0.000 title claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000005187 foaming Methods 0.000 claims abstract description 13
- 238000007664 blowing Methods 0.000 claims abstract description 6
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/04—Units comprising pumps and their driving means the pump being fluid-driven
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/02—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires
- A62C3/0207—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires by blowing air or gas currents with or without dispersion of fire extinguishing agents; Apparatus therefor, e.g. fans
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/14—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using liquids and gases, e.g. foams
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S261/00—Gas and liquid contact apparatus
- Y10S261/26—Foam
Definitions
- a tubular housing with a rear inlet and a frontend outlet has a foraminous cover over its front end.
- a shaft extends lengthwise of the inside of the housing and is rotatably supported. It is driven by a water turbine on its front end, the turbine having an inlet for water under pressure and a central front outlet that delivers the water to a forwardly directed nozzle connected to the turbine.
- Rigidly mounted on the shaft behind the turbine is a fan for blowing air through the housing from back to front.
- a pump for delivering foaming solution to the rear end of the nozzle to mix with the water from the turbine outlet.
- PATENTEB SEPZI 1971 3.601779 sum 1 0r 2 l v ⁇ i ⁇ INVENTORS.
- FIG. 1 is a longitudinal section through the foam generator
- H6. 2 is a view of the rear end of the generator.
- a tubular housing 1 preferably is cylindrical through most of its length but has a forwardly flaring front end portion. Both ends of the housing are open, but the front end is covered by a foraminous member 2 that may be in the form of netting, a screen or a metal sheet provided with a large number of perforations. This member is secured to the front end of the housing in any suitable manner and preferably extends out in front of it. The one shown is metal and stiff enough to retain the truncated form that is illustrated.
- Rigidly mounted inside the housing is a pedestal 3, on which a bracket 4 is mounted.
- the rear portion of the bracket forms a bearing 5, in which a long shaft 6 is rotatably supported.
- the shaft extends lengthwise of the housing and usually will be concentric with it.
- Rigidly mounted on the shaft behind the bearing is a large fan 7 for drawing air into the rear end of the housing and blowing it out through the screen at the front.
- the fan is rotated at high speed by the shaft, which is driven by a water turbine 8 mounted on its front end.
- This turbine is supported by the front portion of bracket 4.
- Connected to the inlet of the turbine is a pipe 9 that extends out of the top of the housing and can be connected to a source of water under high pressure, such at 80 to 100 pounds per square inch.
- the turbine has a front outlet 10, coaxial with the shaft. Mounted in this outlet is the rear end of a short tube 11, the front end of which supports a nozzle 12 that is directed forward. It will be seen that the water that drives the turbine leaves it through the nozzle and passes through the screen in front of it.
- a foaming solution is mixed with the water.
- the solution enters tube 11 behind the nozzle through a pipe 14, the inlet end of which is connected to the outlet of a pump 15 supported by a bracket 16, mounted on a pedestal 17 in the back portion of the housing.
- the inlet of this pump is connected by a pipe 18 to a tank (not shown) containing the foaming solution.
- the pump is driven directly by the turbine and fan shaft. Accordingly, the shaft extends rearwardly from the fan and into the pump to provide the direct drive. Due to the difficulty of getting perfect alignment between the pump axis and the turbine shaft, the rear portion of the shaft may be provided with a flexible coupling 20.
- the turbine drives the fan and pump directly and thereby produces a strong current of air through the housing from back to front and also delivers the foaming solution to the rear end of the nozzle.
- the solution mixes with the water leaving the turbine and the mixture sprayed from the nozzle is blown by the air current through the screen, which breaks it up into bubbles that form the foam.
- a water-powered foam generator constructed in accordance with this invention has delivered high expansion foam (500:1) into the bottom of a hollow structure and filled it to a height over 50 feet above the foam generator.
- a foam generator comprising a tubular housing having a rear inlet end and a front outlet end, a foraminous member covering said front end, a shaft extending lengthwise of the housing centrally thereof; means supporting the shaft for rotation on its axis, a water turbine on the front end of the shaft for driving it, the turbine having an inlet for water under pressure and a central front outlet; a forwardly directed nozzle connected to the turbine outlet for receiving water therefrom, a fan rigidly mounted on the shaft behind the turbine for blowing air through the housing from back to front; a pump mounted on the shaft and driven thereby and having an inlet and an outlet, means for connecting the pump inlet to a source of foaming solution, and a conduit connecting the pump outlet with the rear end of the nozzle to deliver foaming solution thereto to mix with water discharging from the turbine outlet.
- a foam generator according to claim 1 in which said shaft is provided with a flexible coupling between the fan and pump.
- a foam generator according to claim 1 in which said shaft supporting means include a bracket mounted inside said housing and provided in front of the fan with a bearing for the shaft, the turbine having a housing separated from said bearing and rigidly mounted on said bracket in front of the bearing, and an impeller in the turbine on said shaft.
- a foam generator comprising a tubular housing having a rear inlet end and a front outlet end, a foraminous member covering said front end, a shaft extending lengthwise of the housing centrally thereof, a bearing between the turbine and fan supporting the shaft for rotation on its axis, a bracket supporting the bearing a water turbine on the front end of the shaft for driving it, the turbine having an inlet for water under pressure and a central front outlet, a forwardly directed nozzle connected to the turbine outlet for receiving water therefrom, a fan rigidly mounted on the shaft behind the turbine for blowing air through the housing from back to front, a pump mounted on the shaft and having an inlet and an outlet, the shaft being provided with a flexible coupling between the fan and pump, means for connecting the pump inlet to a source of foaming solution, and a conduit connecting the pump outlet with the rear end of the nozzle to deliver foaming solution thereto to mix with water discharging from the turbine outlet.
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Geochemistry & Mineralogy (AREA)
- Ecology (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Fluid Mechanics (AREA)
- Forests & Forestry (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Hydraulic Turbines (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A tubular housing with a rear inlet and a front-end outlet has a foraminous cover over its front end. A shaft extends lengthwise of the inside of the housing and is rotatably supported. It is driven by a water turbine on its front end, the turbine having an inlet for water under pressure and a central front outlet that delivers the water to a forwardly directed nozzle connected to the turbine. Rigidly mounted on the shaft behind the turbine is a fan for blowing air through the housing from back to front. Also mounted on the shaft is a pump for delivering foaming solution to the rear end of the nozzle to mix with the water from the turbine outlet.
Description
United States Patent [72] Inventors Earle C. King Evans City; Walter Milich, Renfrew, both of Pa. [21] App]. No. 848,215 [22] Filed Aug. 7, 1969 [45] Patented Sept. 21, 1971 [73] Assignee Mine Safety Appliances Company Pittsburgh, Pa.
[54] FOAM GENERATOR 5 Claims, 2 Drawing Figs.
[52] 0.8. CI 252/359 E, 165/14, 165/15, 239/343 [51] lnt.Cl 801d, B01f,B01i 13/00 [50] Field of Search 159/D1G. 4; 23/252; 165/15, 14; 261/D1G. 26, 25; 259/D1G. 36; 239/343; 252/359, R, 359 E [56] References Cited UNITED STATES PATENTS 2,769,500 11/1956 Clifford 169/15 Primary Examiner-Norman Yudkoff Assistant ExaminerS. Silverberg AttorneyBrown, Murray, Flick & Peckham ABSTRACT: A tubular housing with a rear inlet and a frontend outlet has a foraminous cover over its front end. A shaft extends lengthwise of the inside of the housing and is rotatably supported. It is driven by a water turbine on its front end, the turbine having an inlet for water under pressure and a central front outlet that delivers the water to a forwardly directed nozzle connected to the turbine. Rigidly mounted on the shaft behind the turbine is a fan for blowing air through the housing from back to front. Also mounted on the shaft is a pump for delivering foaming solution to the rear end of the nozzle to mix with the water from the turbine outlet.
PATENTEB SEPZI 1971 3.601779 sum 1 0r 2 l v \i\ INVENTORS.
EARLE arm/ By WALTERM/L/CH ATTORNEYS.
PATENT ED SEP2I 1974 3501.779
sum 2 or 2 IN VENTORS. EARLE C. KIA/6 BY WAL M/L lCH A TTORNEVS FOAM GENERATOR It is among the objects of this invention to provide a foam generator which will produce high expansion foam, which is operated entirely by water power, which is simple in construction and which is highly efficient.
The preferred embodiment of the invention is illustrated in the accompanying drawings, in which FIG. 1 is a longitudinal section through the foam generator; and
H6. 2 is a view of the rear end of the generator.
Referring to the drawings, a tubular housing 1 preferably is cylindrical through most of its length but has a forwardly flaring front end portion. Both ends of the housing are open, but the front end is covered by a foraminous member 2 that may be in the form of netting, a screen or a metal sheet provided with a large number of perforations. This member is secured to the front end of the housing in any suitable manner and preferably extends out in front of it. The one shown is metal and stiff enough to retain the truncated form that is illustrated.
Rigidly mounted inside the housing is a pedestal 3, on which a bracket 4 is mounted. The rear portion of the bracket forms a bearing 5, in which a long shaft 6 is rotatably supported. The shaft extends lengthwise of the housing and usually will be concentric with it. Rigidly mounted on the shaft behind the bearing is a large fan 7 for drawing air into the rear end of the housing and blowing it out through the screen at the front. The fan is rotated at high speed by the shaft, which is driven by a water turbine 8 mounted on its front end. This turbine is supported by the front portion of bracket 4. Connected to the inlet of the turbine is a pipe 9 that extends out of the top of the housing and can be connected to a source of water under high pressure, such at 80 to 100 pounds per square inch. The turbine has a front outlet 10, coaxial with the shaft. Mounted in this outlet is the rear end of a short tube 11, the front end of which supports a nozzle 12 that is directed forward. It will be seen that the water that drives the turbine leaves it through the nozzle and passes through the screen in front of it.
In order to provide the desired foam, a foaming solution is mixed with the water. In accordance with this invention the solution enters tube 11 behind the nozzle through a pipe 14, the inlet end of which is connected to the outlet of a pump 15 supported by a bracket 16, mounted on a pedestal 17 in the back portion of the housing. The inlet of this pump is connected by a pipe 18 to a tank (not shown) containing the foaming solution.
Another feature of this invention is that the pump is driven directly by the turbine and fan shaft. Accordingly, the shaft extends rearwardly from the fan and into the pump to provide the direct drive. Due to the difficulty of getting perfect alignment between the pump axis and the turbine shaft, the rear portion of the shaft may be provided with a flexible coupling 20.
When water under pressure is delivered to the turbine through pipe 9, the turbine drives the fan and pump directly and thereby produces a strong current of air through the housing from back to front and also delivers the foaming solution to the rear end of the nozzle. The solution mixes with the water leaving the turbine and the mixture sprayed from the nozzle is blown by the air current through the screen, which breaks it up into bubbles that form the foam.
This apparatus extracts the maximum power from the water by operating both the pump and the fan through a direct drive from the turbine. This results in higher expansion foam at lower water pressure. Since the foam pump requires minimal horsepower because it injects the foaming solution into the water stream between the turbine outlet and the nozzle, nearly all of the water pressure is consumed in driving the fan at the required r.p.m. Extremely little power is required to pump the foaming solution into the water. A water-powered foam generator constructed in accordance with this invention has delivered high expansion foam (500:1) into the bottom of a hollow structure and filled it to a height over 50 feet above the foam generator.
We claim: l. A foam generator comprising a tubular housing having a rear inlet end and a front outlet end, a foraminous member covering said front end, a shaft extending lengthwise of the housing centrally thereof; means supporting the shaft for rotation on its axis, a water turbine on the front end of the shaft for driving it, the turbine having an inlet for water under pressure and a central front outlet; a forwardly directed nozzle connected to the turbine outlet for receiving water therefrom, a fan rigidly mounted on the shaft behind the turbine for blowing air through the housing from back to front; a pump mounted on the shaft and driven thereby and having an inlet and an outlet, means for connecting the pump inlet to a source of foaming solution, and a conduit connecting the pump outlet with the rear end of the nozzle to deliver foaming solution thereto to mix with water discharging from the turbine outlet.
2. A foam generator according to claim 1, in which said shaft is provided with a flexible coupling between the fan and pump.
3. A foam generator according to claim 1, in which said shaft supporting means include a bracket mounted inside said housing and provided in front of the fan with a bearing for the shaft, the turbine having a housing separated from said bearing and rigidly mounted on said bracket in front of the bearing, and an impeller in the turbine on said shaft.
4. A foam generator according to claim 1, in which said pump is mounted on said shaft behind the fan, the generator including means mounted inside said housing supporting the pump.
5. A foam generator comprising a tubular housing having a rear inlet end and a front outlet end, a foraminous member covering said front end, a shaft extending lengthwise of the housing centrally thereof, a bearing between the turbine and fan supporting the shaft for rotation on its axis, a bracket supporting the bearing a water turbine on the front end of the shaft for driving it, the turbine having an inlet for water under pressure and a central front outlet, a forwardly directed nozzle connected to the turbine outlet for receiving water therefrom, a fan rigidly mounted on the shaft behind the turbine for blowing air through the housing from back to front, a pump mounted on the shaft and having an inlet and an outlet, the shaft being provided with a flexible coupling between the fan and pump, means for connecting the pump inlet to a source of foaming solution, and a conduit connecting the pump outlet with the rear end of the nozzle to deliver foaming solution thereto to mix with water discharging from the turbine outlet.
UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3 607,779 a d September 21, 1971 Inventor(s) Earle C. King and Walter Milich It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:
Column 1, line 32, change "at" to --as--.
Claim 3, last line, after "turbine" insert --housing mounted--.
Signed and sealed this 11 111 day of March 1972.
(SEAL) Attest:
EDWARD M.FLETCHER,JR. ROBERT GOTTSGHALK Attesting Officer Commissioner of Patents FORM PO-IO (1 uscoMM-Dc wave-P69 U S. GOVERNMENT PRINTING OFFICE l9, O-35G- 334
Claims (4)
- 2. A foam generator according to claim 1, in which said shaft is provided with a flexible coupling between the fan and pump.
- 3. A foam generator according to claim 1, in which said shaft supporting means include a bracket mounted inside said housing and provided in front of the fan with a bearing for the shaft, the turbine having a housing separated from said bearing and rigidly mounted on said bracket in front of the bearing, and an impeller in the turbine on said shaft.
- 4. A foam generator according to claim 1, in which said pump is mounted on said shaft behind the fan, the generator including means mounted inside said housing supporting the pump.
- 5. A foam generator comprising a tubular housing having a rear inlet end and a front outlet end, a foraminous member covering said front end, a shaft extending lengthwise of the housing centrally thereof, a bearing between the turbine and fan supporting the shaft for rotation on its axis, a bracket supporting the bearing a water turbine on the front end of the shaft for driving it, the turbine having an inlet for water under pressure and a central front outlet, a forwardly directed nozzle connected to the turbine outlet for receiving water therefrom, a fan rigidly mounted on the shaft behind the turbine for blowing air through the housing from back to front, a pump mounted on the shaft and having an inlet and an outlet, the shaft being provided with a flexible coupling between the fan and pump, means for conNecting the pump inlet to a source of foaming solution, and a conduit connecting the pump outlet with the rear end of the nozzle to deliver foaming solution thereto to mix with water discharging from the turbine outlet.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US84821569A | 1969-08-07 | 1969-08-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3607779A true US3607779A (en) | 1971-09-21 |
Family
ID=25302676
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US848215A Expired - Lifetime US3607779A (en) | 1969-08-07 | 1969-08-07 | Foam generator |
Country Status (2)
Country | Link |
---|---|
US (1) | US3607779A (en) |
GB (1) | GB1246950A (en) |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4181469A (en) * | 1977-01-28 | 1980-01-01 | Dion Biro Guy | Apparatus for adding emulsifier to a fluid |
WO1990008880A1 (en) * | 1989-02-06 | 1990-08-09 | Davorn Kapich | Portable water driven high velocity fan |
US5125797A (en) * | 1989-02-06 | 1992-06-30 | Davorin Kapich | Portable water driven high velocity fan |
US5199848A (en) * | 1990-10-31 | 1993-04-06 | Davorin Kapich | Portable water driven pump |
US5236305A (en) * | 1989-02-06 | 1993-08-17 | Davorin Kapich | High speed hydraulic turbine drive |
US5275533A (en) * | 1991-08-27 | 1994-01-04 | Kapich Davorin D | Quiet compressed air turbine fan |
US5337830A (en) * | 1990-03-19 | 1994-08-16 | Allen William Rogers | Fire fighting foam generation system |
US5471965A (en) * | 1990-12-24 | 1995-12-05 | Kapich; Davorin D. | Very high speed radial inflow hydraulic turbine |
US5590719A (en) * | 1991-07-17 | 1997-01-07 | Mcloughlin; John E. | Firefighting nozzle with foam injection system |
US5787989A (en) * | 1993-06-04 | 1998-08-04 | Elmenhorst; Gerrit | Apparatus for producing fire-fighting foam |
US5833005A (en) * | 1997-08-14 | 1998-11-10 | Woolcock; Mel | Fog producing fire-fighting system |
US5941314A (en) * | 1998-03-20 | 1999-08-24 | Super Vacuum Manufacturing Company Inc. | Portable battery-powered smoke ventilator fan and emergency lighting assemblies |
US6422734B1 (en) | 1999-10-27 | 2002-07-23 | National Gypsum Properties, Llc | Static foam generating apparatus and method |
US20040098987A1 (en) * | 2000-12-29 | 2004-05-27 | Markku Raiko | Integration construction between a boiler and a steam turbine and method in preheating of the supply water for a steam turbine and in its control |
US20040123991A1 (en) * | 2002-12-09 | 2004-07-01 | Hanratty Michael P. | Systems and methods for generating high volumes of foam |
US20150031264A1 (en) * | 2013-07-25 | 2015-01-29 | Samuel Peckham | Bubble Generating Article |
US20160040491A1 (en) * | 2014-08-07 | 2016-02-11 | Harnischfeger Technologies, Inc. | Fluid coupling drive system for a drill rig air compressor |
US9687685B1 (en) * | 2013-10-25 | 2017-06-27 | Michael Paul Chmielewski | Device for generating compressed air foam for use in fire suppression |
US20170341094A1 (en) * | 2016-05-27 | 2017-11-30 | Twin City Fan Companies, Ltd. | Tunnel fan and method |
US20190091499A1 (en) * | 2016-03-17 | 2019-03-28 | Mtk Fire Protection Systems | Compressed air foam mixing device |
WO2019202173A1 (en) * | 2018-04-16 | 2019-10-24 | Soriano Azorin Juan Jose | Refillable and transportable extinguishing device |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4976319A (en) * | 1989-03-06 | 1990-12-11 | Hale Fire Pump Company | Water driven fan for firefighting |
FR2672223B1 (en) * | 1991-02-04 | 1994-12-30 | Aristide Kaidonis | DEVICE FOR THE CONTROL AND PREVENTION OF FIRES AND POLLUTIONS. |
-
1969
- 1969-08-07 US US848215A patent/US3607779A/en not_active Expired - Lifetime
-
1970
- 1970-07-01 GB GB31899/70A patent/GB1246950A/en not_active Expired
Cited By (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4181469A (en) * | 1977-01-28 | 1980-01-01 | Dion Biro Guy | Apparatus for adding emulsifier to a fluid |
US5346364A (en) * | 1989-02-06 | 1994-09-13 | Davorin Kapich | Very high speed hydraulic turbine drive |
WO1990008880A1 (en) * | 1989-02-06 | 1990-08-09 | Davorn Kapich | Portable water driven high velocity fan |
US5013214A (en) * | 1989-02-06 | 1991-05-07 | Davorin Kapich | Portable water driven high velocity fan |
US5125797A (en) * | 1989-02-06 | 1992-06-30 | Davorin Kapich | Portable water driven high velocity fan |
US5236305A (en) * | 1989-02-06 | 1993-08-17 | Davorin Kapich | High speed hydraulic turbine drive |
US5337830A (en) * | 1990-03-19 | 1994-08-16 | Allen William Rogers | Fire fighting foam generation system |
US5199848A (en) * | 1990-10-31 | 1993-04-06 | Davorin Kapich | Portable water driven pump |
US5471965A (en) * | 1990-12-24 | 1995-12-05 | Kapich; Davorin D. | Very high speed radial inflow hydraulic turbine |
US5590719A (en) * | 1991-07-17 | 1997-01-07 | Mcloughlin; John E. | Firefighting nozzle with foam injection system |
US5275533A (en) * | 1991-08-27 | 1994-01-04 | Kapich Davorin D | Quiet compressed air turbine fan |
US5787989A (en) * | 1993-06-04 | 1998-08-04 | Elmenhorst; Gerrit | Apparatus for producing fire-fighting foam |
US5833005A (en) * | 1997-08-14 | 1998-11-10 | Woolcock; Mel | Fog producing fire-fighting system |
US5941314A (en) * | 1998-03-20 | 1999-08-24 | Super Vacuum Manufacturing Company Inc. | Portable battery-powered smoke ventilator fan and emergency lighting assemblies |
US6422734B1 (en) | 1999-10-27 | 2002-07-23 | National Gypsum Properties, Llc | Static foam generating apparatus and method |
US20040098987A1 (en) * | 2000-12-29 | 2004-05-27 | Markku Raiko | Integration construction between a boiler and a steam turbine and method in preheating of the supply water for a steam turbine and in its control |
US20040123991A1 (en) * | 2002-12-09 | 2004-07-01 | Hanratty Michael P. | Systems and methods for generating high volumes of foam |
US20040216896A1 (en) * | 2002-12-09 | 2004-11-04 | Hanratty Michael P | Fire fighting adapter for converting a conventional back pack blower into a water and foam fire fighter |
US6889773B2 (en) | 2002-12-09 | 2005-05-10 | Hanratty Associates, Llc | Fire fighting adapter for converting a conventional back pack blower into a water and foam fire fighter |
US7207501B2 (en) | 2002-12-09 | 2007-04-24 | Hanratty Associates, Llc | Systems and methods for generating high volumes of foam |
US20150031264A1 (en) * | 2013-07-25 | 2015-01-29 | Samuel Peckham | Bubble Generating Article |
US9687751B2 (en) * | 2013-07-25 | 2017-06-27 | Samuel Peckham | Bubble generating article |
US9687685B1 (en) * | 2013-10-25 | 2017-06-27 | Michael Paul Chmielewski | Device for generating compressed air foam for use in fire suppression |
US20160040491A1 (en) * | 2014-08-07 | 2016-02-11 | Harnischfeger Technologies, Inc. | Fluid coupling drive system for a drill rig air compressor |
US11441369B2 (en) * | 2014-08-07 | 2022-09-13 | Joy Global Surface Mining Inc | Fluid coupling drive system for a drill rig air compressor |
US20190091499A1 (en) * | 2016-03-17 | 2019-03-28 | Mtk Fire Protection Systems | Compressed air foam mixing device |
US11173330B2 (en) * | 2016-03-17 | 2021-11-16 | Mtk Fire Protection Systems | Compressed air foam mixing apparatus |
US20170341094A1 (en) * | 2016-05-27 | 2017-11-30 | Twin City Fan Companies, Ltd. | Tunnel fan and method |
WO2017205725A1 (en) * | 2016-05-27 | 2017-11-30 | Twin City Fan Companies, Ltd. | Tunnel fan and method |
WO2019202173A1 (en) * | 2018-04-16 | 2019-10-24 | Soriano Azorin Juan Jose | Refillable and transportable extinguishing device |
Also Published As
Publication number | Publication date |
---|---|
DE2037425A1 (en) | 1971-10-07 |
DE2037425B2 (en) | 1972-08-17 |
GB1246950A (en) | 1971-09-22 |
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