WO1994026352A1 - Fire damper and a fire damper control system - Google Patents
Fire damper and a fire damper control system Download PDFInfo
- Publication number
- WO1994026352A1 WO1994026352A1 PCT/SE1994/000432 SE9400432W WO9426352A1 WO 1994026352 A1 WO1994026352 A1 WO 1994026352A1 SE 9400432 W SE9400432 W SE 9400432W WO 9426352 A1 WO9426352 A1 WO 9426352A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- motor
- shaft
- damper
- spring
- pinion
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
- A62C2/06—Physical fire-barriers
- A62C2/24—Operating or controlling mechanisms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/33—Responding to malfunctions or emergencies to fire, excessive heat or smoke
- F24F11/35—Responding to malfunctions or emergencies to fire, excessive heat or smoke by closing air passages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1406—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by sealing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
- F24F2013/1433—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with electric motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
- F24F2013/1446—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with gearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
- F24F2013/146—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with springs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
- F24F2013/148—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with magnets
Definitions
- the present invention relates to a fire damper device for operating at least one damper shaft between a starting posi ⁇ tion and a working position, in which device an interruption in the energy supply, which is unintentional or which is initiated via sensing means, causes an automatic return of the shaft to its starting position, said shaft being movable between the starting position and the working position by means of cooperation between at least a first motor and the biassing force of at least a first spring.
- Such a device can be used for example to open and close a flap valve for preventing the spreading of fire and smoke.
- a smoke and fire damper according to the invention effectively stops combustion gases and smoke produced in a fire from spreading via the ventilation system of a building.
- the fire damper limits the damage and helps prevent catastrophes occurring in hotels, ships, industrial buildings, nursing homes, hospitals, office buildings, stor ⁇ age buildings and schools.
- each fire damper By connecting each fire damper to a new, completely computer ⁇ ized monitoring and control system in a two-wire configura ⁇ tion, which is designed to be used for monitoring the fire dampers with associated smoke detectors and thermoswitches, it is possible to automatically check the functioning of each fire damper, thus eliminating the necessity of extra fire insulation of the ventilation ducts.
- Each fire damper has built-in smoke detectors and thermoswitches and can, if there is to be central surveillance, be coupled to the monitoring and control system by means of a single twisted two-conductor cable.
- Spring-loaded gear train motors for fire dampers are pre ⁇ viously known in control technology, but these motors are often complicated in their design and are thus expensive to manufacture as well as being space-consuming, which means that in general they are only suitable for quite large in ⁇ stallations. Due to the relatively large external dimensions of such a motor, it is as a rule not possible to mount it in direct connection with a flap valve for example in a duct section, which is often in turn located inside a dividing wall. The motor is instead mounted separate from the duct section on either side of the wall. In order to transmit the rotary motion of the motor to the damper, some type of trans ⁇ mission is required, e.g. a shaft with an angle transmission, a belt transmission or a linkage arm system.
- the purpose of the present invention is therefore to provide, in a simpler and less expensive manner than previously, an operating device for fire dampers, which reliably blocks the damper in the closed position, which is flexible and which is inexpensive to install and wire.
- a fire damper device of the type described by way of introduction which is characterized in that the shaft, upon a break in the energy supply, is lockable in the starting position by means of a pawl or blocking arm which can be actuated by a second spring and can be re-released by means of a second motor joined to said blocking arm or pawl.
- the device according to the invention is intended to be controlled by means of a modular, expandable central unit "DDC", which via two-wire connectors in three loops can be connected to up to 96 damper units for digital remote control and monitoring of fire dampers coupled to each damper unit.
- DDC modular, expandable central unit
- Two fire dampers with associated sensing means, i.e. thermo ⁇ switches and smoke detectors, can be coupled to each damper unit. It is thus possible with DDC to identify and control a total of 192 fire dampers with thermoswitches and smoke detectors.
- DDC it is possible, via only one two-wire cable, to remotely monitor on a central display both the supply and exhaust ducts to each individual room, e.g. in a hotel or a nursing home.
- the display is suitably in the form of signal lamps which have different colours depending on what type of alarm is to be indicted (green, yellow, red etc, red preferably being used to indicate fire and smoke alarm) .
- the communication between the dampers and the central unit is done digitally with a two-wire sys ⁇ tem.
- Each damper has a unique address and in this way the communication can be effected in two directions between the central unit and the damper. Communication is also possible with a superior computer, a telenet work etc.
- a printer can also be coupled directly to the central unit.
- Figure 1 shows the principle of one embodiment of the device partially in section, with the motor in driving connection with the damper, which is in its open position
- Figure 2 shows a device according to Figure 1 with the motor disengaged and with the damper in its closed posi ⁇ tion
- Figure 3 shows a side view of a preferred embodiment of a damper housing for the device
- Figure 4 shows a preferred embodiment of the device in side view
- Figure 5 shows the device according to Figure 4 in a horison- tal view
- Figure 6 shows a wiring diagram for a group of devices accor ⁇ ding to the invention connected to a central unit.
- the letter A designates a ventilation duct with abutments 2 and 3 for a damper 4, which is joined to a gear 5 mounted on a rotary shaft 6 for the damper.
- a gear train motor 7 Near the gear 5 there is mounted a gear train motor 7, which has at one end an output shaft and a pinion 8 mounted thereon.
- the gear train motor is pivotally mounted about a fixed pivot pin 9 disposed at the same end next to the pinion 8 in such a manner that the center axes of the pivot pin, the damper, the pinion and the gear 5 are all parallel to each other.
- On the pivot pin 9 there is also mounted a pawl 10 biassed by a leaf spring 11 towards the gear 5.
- the pawl 10 is also provided with a heel 12 directed against the gear train motor 7 and which, under the influence of the spring 11, strives to come into contact with the outside of the motor 7.
- a linear motor in the form of an electromagnet 13 is pivotal ⁇ ly mounted on an anchoring pin 14 and the linearly displace- able rod-spaced core of the magnet is joined at its free end to an operating pin 15 securely anchored to the other end of the motor 7.
- a spiral spring 16 is placed over the protruding portion of the magnetic core and bears with one end against the opposite end of the magnetic coil and bears with its other end against a stop on the protruding portion of the magnetic core. The spiral spring 16 thus strives to push the core out of the coil, when the coil is free of current.
- a spiral spring 17 acting as a return spring and provided with long legs is mounted on the shaft 6. One leg is fixed at the point 18 while the other leg is in resilient contact with a spring pin 19 fixed to the gear 5.
- the gear train motor 7 and the electromagnet 13 each have individual connecting wires (not shown) of conventional type, for connecting a driving voltage and an operating voltage.
- control unit 20 e.g. a microprocessor with presettable command values, which obtain their control sig ⁇ nals (the actual values) from sensors (not shown) in the duct A in question, suitably smoke detectors and temperature sen ⁇ sors or the like of a type which is known per se.
- control unit 20 e.g. a microprocessor with presettable command values, which obtain their control sig ⁇ nals (the actual values) from sensors (not shown) in the duct A in question, suitably smoke detectors and temperature sen ⁇ sors or the like of a type which is known per se.
- the displaceable core is affected by the magnetic field so that it is displaced into the magnet against the force of the spiral spring 16, thus compressing the spring at the same time as the core, via the pivot con ⁇ nection with the operating pin 15, pulls the g ar train motor 7 with it in its displacement. Since the motor 7 is pivotally mounted on the pin 9, the motor will be rotable about said pin until the pinion 8 engages the gear 5 on the shaft 6.
- both the operating voltage and the driving voltage are shut off.
- the core of the electromagnet 13 is thus pushed out of the magnet under the influence of the pretensioned spiral spring 16, and the gear train motor 7 is pivoted about the pin 9 so that the pinion 8 is no longer in engagement with the gear 5 of the shaft 6.
- the return spring 17 then returns, via the spring pin 19, the gear 5 and the shaft 6, the damper 4 in the direction of the arrow M' to the starting position in sealing contact with the abutments 2 and 3.
- FIG. 3-6 comprises, in addition to the central control unit 20, two end panels 21,22, and a two-part housing 24 in the form of a duct, said housing being coupled into a unit by means of a flange coupling 26.
- a damper shaft 28 arranged in the housing there is mounted a gear in the form of a toothed segment 30, which is in permanent engagement with the pinion 32 of a drive unit 31, said pinion being mounted on the output shaft of the drive unit 31 which can be fixedly mounted relative to the toothed segment 30.
- the pinion 32 of the output shaft is connected to an electric motor 36 of the drive unit 31 by means of a gear train 34.
- An electromagnet 38 can also be fixedly mounted relative to the toothed seg ⁇ ment 30.
- the magnet moves, via a linkage arm 40, a blocking element 42 between a position blocking the toothed segment 30 and a position releasing the toothed segment.
- Two microswit- ches 44,46 are mounted on either side of the motor 36 and act as position sensors for the position of the damper shaft 28 and thus the position of the damper.
- the microswitches 44,46 are actuated by a pin 47 fixed to the toothed segment.
- the motor 36 is mounted on a motor plate 48 and is activated together with the electromagnet 38.
- the damper shaft 28 carries a damper plate 50, and a torsion spring 52 together with a spring guide 54 are mounted on the damper shaft 28, by means of which the damper plate 50 is continuously biassed towards the closed position.
- the blocking element 42 releases the toothed segment 30 and this permits the toothed segment to move, rotating the damper shaft 28 thus opening the damper and tensioning the torsion spring 52.
- the tension energy in the spring 52 is released returning the damper to its closed position, where it is locked by the blocking means 42 being moved by a compression spring 56 to a position blocking the toothed segment 30. In this position, the damper cannot be opened unless the motor and the electromagnet are reactivated by supplying them with drive voltage.
- the damper housing 24 there is an insulation 58, prefer ⁇ ably of mineral wool (Promatect type L) .
- the damper housing 24 is coated on its interior with a fire-inhibiting paint from Casco Nobel in three layers, which has been cured and which constitutes significant heat-insulation.
- the paint designation is Hensoterm 4 KS, white matt, intended for fire insulation of supporting steel structures.
- the fire-inhibit ⁇ ing paint is also applied to the mounting 60 for the damper plate 50 shaft as above, which substantially extends the resistance to through-burning of the damper plate.
- the damper plate 50 itself is suitably made in three layers of a fire- resistant material of conventional type, and the surfaces of the damper itself are treated with fire-inhibiting paint as above.
- the damper plate 50 abuts against, in its closed position, sealing strips 62 (Z-strips) of fire-resistant foamed plastic arranged on the walls of the housing 24.
- the drive unit 31 is made as a module which is easily re- placeable if a fault for example should occur in the damper motor 36. It is important that the pinion 32 of the drive unit 31 be in correct engagement with the toothed segment 30, to assure reliable functioning of the device.
- the shaft of the pinion 32 is therefore provided with a ball bearing 64 mounted between the pinion 32 and the motor plate 48.
- An abutment 66 is made on the toothed segment 30, and serves as an abutment for the ball bearing 64 when a faulty drive unit has been removed and a new drive unit 31 is put in place by means of guide and anchoring rails (not shown) .
- a T-pipe to the output endpiece, said T- pipe being connected to the ventilation duct in question with its end opposite to the endpiece and having an opening 90° relative to said ends, through which it is possible, with the aid of a mirror for example, to inspect the interior of the fire damper.
- This opening is rotatable 360 by rotating the entire T-pipe to the desired position, which facilitates access to the opening.
- the opening is cover ⁇ ed by an inspection lid in the center of which a smoke detec- tor is suitably mounted.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Air-Flow Control Members (AREA)
- Control Of Position Or Direction (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP94915738A EP0699095B1 (en) | 1993-05-12 | 1994-05-10 | Fire damper and a fire damper control system |
AU67639/94A AU6763994A (en) | 1993-05-12 | 1994-05-10 | Fire damper and a fire damper control system |
DE69425056T DE69425056T2 (en) | 1993-05-12 | 1994-05-10 | FIRE PROTECTION VALVE WITH CONTROL SYSTEM |
DK94915738T DK0699095T3 (en) | 1993-05-12 | 1994-05-10 | Fire suppressor and fire suppression system |
NO954522A NO954522D0 (en) | 1993-05-12 | 1995-11-09 | Device by fire damper |
FI955432A FI109877B (en) | 1993-05-12 | 1995-11-10 | Control system and method for preventing the spread of flue gas and flue gas in the ventilation system |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9301634A SE501531C2 (en) | 1993-05-12 | 1993-05-12 | Smoke and fire damper installed in ventilation system of building - rotates shaft between starting position and working position by simultaneous actuation of rotary motor and electromagnet against biassing force of return spring |
SE9301634-3 | 1993-05-12 | ||
SE9400104A SE9400104D0 (en) | 1994-01-17 | 1994-01-17 | Systems to prevent the spread of fire and flue gases in ventilation systems |
SE9400104-7 | 1994-01-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1994026352A1 true WO1994026352A1 (en) | 1994-11-24 |
WO1994026352A9 WO1994026352A9 (en) | 1998-05-14 |
Family
ID=26661734
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE1994/000432 WO1994026352A1 (en) | 1993-05-12 | 1994-05-10 | Fire damper and a fire damper control system |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0699095B1 (en) |
AU (1) | AU6763994A (en) |
DE (1) | DE69425056T2 (en) |
DK (1) | DK0699095T3 (en) |
FI (1) | FI109877B (en) |
NO (1) | NO954522D0 (en) |
WO (1) | WO1994026352A1 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2757775A1 (en) * | 1996-12-27 | 1998-07-03 | Panol | Ventilation duct shutter to prevent spread of flames and smoke in event of fire |
EP0866283A3 (en) * | 1997-03-17 | 2000-04-26 | Schako Metallwarenfabrik Ferdinand Schad KG | Device for monitoring and controlling climatisation elements |
EP1267133A1 (en) * | 2001-06-12 | 2002-12-18 | Climovent System S.r.l. | Shutter device for ventilation ducts, particularly as fire-arrester |
EP0824027B1 (en) * | 1996-08-13 | 2003-04-02 | Rubitec AG | Explosion protection device with electric triggering |
EP1519120A1 (en) * | 2003-09-19 | 2005-03-30 | BBH Betriebseinrichtungen AG | Electrically actuated fire damper |
EP2306158A1 (en) * | 2009-10-01 | 2011-04-06 | Calectro AB | Fluid detector with two-part housing |
ES2436506A1 (en) * | 2012-06-27 | 2014-01-02 | Madel Air Technical Diffusion, S.A. | Mechanism for automatic and manual actuation of firebreak valve, has lever adapting one position in which plate allows rotation shaft and end of lever to be attracted and fixed by electromagnet by inflection of distal arms |
EP2844926A4 (en) * | 2012-03-19 | 2016-01-13 | Daniel P Casey | Novel louver system |
US9803879B2 (en) | 2009-08-31 | 2017-10-31 | Daniel P. Casey | Louver system |
US10132083B1 (en) | 2009-08-31 | 2018-11-20 | Daniel P. Casey | Systems for collecting rainwater and recycling grey water |
US20220140704A1 (en) * | 2020-11-04 | 2022-05-05 | Kohler Co. | Generator enclosure with fire damper |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005012228A1 (en) * | 2005-03-15 | 2006-11-02 | Werner Wildeboer | Fire protection device for an air conditioning system with at least one closing a cross-section of the ventilation system shut-off |
RU2472547C2 (en) * | 2007-04-12 | 2013-01-20 | Белимо Холдинг Аг | Drive system for fire damper |
DE102007041383B4 (en) * | 2007-08-31 | 2009-10-22 | K + G Pneumatik Gmbh | Smoke and heat extraction and ventilation device comprising smoke and heat extraction and ventilation devices, each with a motor drive |
CN112229010B (en) * | 2020-10-10 | 2021-12-07 | 东莞市净诺环境科技股份有限公司 | New fan of wall-hanging double-duct maintenance of being convenient for |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH553384A (en) * | 1972-06-16 | 1974-08-30 | Sulzer Ag | FIRE PROTECTION FLAP FOR VENTILATION SYSTEMS. |
US4432272A (en) * | 1982-11-29 | 1984-02-21 | Ruskin Manufacturing Company | Motor operated fire damper |
US4545363A (en) * | 1984-07-05 | 1985-10-08 | Safe-Air Inc. | Ventilation damper control system |
AT386343B (en) * | 1982-06-02 | 1988-08-10 | Braunegg Heinz | DEVICE FOR CONTROLLING A FIRE PROTECTION DEVICE |
US4928583A (en) * | 1988-07-22 | 1990-05-29 | Taylor Harry L | Air flow control system |
GB2244214A (en) * | 1990-05-21 | 1991-11-27 | Motorised Air Products Limited | Smoke and fire damper |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02299672A (en) * | 1989-05-15 | 1990-12-11 | Toshiba Corp | Disaster prevention system |
-
1994
- 1994-05-10 AU AU67639/94A patent/AU6763994A/en not_active Abandoned
- 1994-05-10 DE DE69425056T patent/DE69425056T2/en not_active Expired - Fee Related
- 1994-05-10 DK DK94915738T patent/DK0699095T3/en active
- 1994-05-10 WO PCT/SE1994/000432 patent/WO1994026352A1/en active IP Right Grant
- 1994-05-10 EP EP94915738A patent/EP0699095B1/en not_active Expired - Lifetime
-
1995
- 1995-11-09 NO NO954522A patent/NO954522D0/en not_active Application Discontinuation
- 1995-11-10 FI FI955432A patent/FI109877B/en not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH553384A (en) * | 1972-06-16 | 1974-08-30 | Sulzer Ag | FIRE PROTECTION FLAP FOR VENTILATION SYSTEMS. |
AT386343B (en) * | 1982-06-02 | 1988-08-10 | Braunegg Heinz | DEVICE FOR CONTROLLING A FIRE PROTECTION DEVICE |
US4432272A (en) * | 1982-11-29 | 1984-02-21 | Ruskin Manufacturing Company | Motor operated fire damper |
US4545363A (en) * | 1984-07-05 | 1985-10-08 | Safe-Air Inc. | Ventilation damper control system |
US4928583A (en) * | 1988-07-22 | 1990-05-29 | Taylor Harry L | Air flow control system |
GB2244214A (en) * | 1990-05-21 | 1991-11-27 | Motorised Air Products Limited | Smoke and fire damper |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0824027B1 (en) * | 1996-08-13 | 2003-04-02 | Rubitec AG | Explosion protection device with electric triggering |
FR2757775A1 (en) * | 1996-12-27 | 1998-07-03 | Panol | Ventilation duct shutter to prevent spread of flames and smoke in event of fire |
EP0866283A3 (en) * | 1997-03-17 | 2000-04-26 | Schako Metallwarenfabrik Ferdinand Schad KG | Device for monitoring and controlling climatisation elements |
EP1267133A1 (en) * | 2001-06-12 | 2002-12-18 | Climovent System S.r.l. | Shutter device for ventilation ducts, particularly as fire-arrester |
EP1519120A1 (en) * | 2003-09-19 | 2005-03-30 | BBH Betriebseinrichtungen AG | Electrically actuated fire damper |
US9803879B2 (en) | 2009-08-31 | 2017-10-31 | Daniel P. Casey | Louver system |
US10132083B1 (en) | 2009-08-31 | 2018-11-20 | Daniel P. Casey | Systems for collecting rainwater and recycling grey water |
US8443652B2 (en) | 2009-10-01 | 2013-05-21 | Calectro Aktiebolag | Fluid detector |
EP2306158A1 (en) * | 2009-10-01 | 2011-04-06 | Calectro AB | Fluid detector with two-part housing |
EP2844926A4 (en) * | 2012-03-19 | 2016-01-13 | Daniel P Casey | Novel louver system |
ES2436506A1 (en) * | 2012-06-27 | 2014-01-02 | Madel Air Technical Diffusion, S.A. | Mechanism for automatic and manual actuation of firebreak valve, has lever adapting one position in which plate allows rotation shaft and end of lever to be attracted and fixed by electromagnet by inflection of distal arms |
US20220140704A1 (en) * | 2020-11-04 | 2022-05-05 | Kohler Co. | Generator enclosure with fire damper |
US11949298B2 (en) * | 2020-11-04 | 2024-04-02 | Kohler Co. | Generator enclosure with fire damper |
Also Published As
Publication number | Publication date |
---|---|
EP0699095A1 (en) | 1996-03-06 |
FI955432A (en) | 1995-11-10 |
FI109877B (en) | 2002-10-31 |
NO954522L (en) | 1995-11-09 |
EP0699095B1 (en) | 2000-06-28 |
AU6763994A (en) | 1994-12-12 |
NO954522D0 (en) | 1995-11-09 |
DE69425056D1 (en) | 2000-08-03 |
FI955432A0 (en) | 1995-11-10 |
DE69425056T2 (en) | 2001-03-08 |
DK0699095T3 (en) | 2000-11-13 |
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