GB1424616A - Ventilator - Google Patents
VentilatorInfo
- Publication number
- GB1424616A GB1424616A GB1272073A GB1272073A GB1424616A GB 1424616 A GB1424616 A GB 1424616A GB 1272073 A GB1272073 A GB 1272073A GB 1272073 A GB1272073 A GB 1272073A GB 1424616 A GB1424616 A GB 1424616A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switch
- motor
- contact
- lamp
- resistor
- 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
Links
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
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
- A62C2/06—Physical fire-barriers
-
- 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
- A62C2/246—Operating or controlling mechanisms having non-mechanical actuators
- A62C2/247—Operating or controlling mechanisms having non-mechanical actuators electric
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
1424616 Ventilators MATSUSHITA SEIKO CO Ltd 16 March 1973 [28 July 1972 (4) 2 Aug 1972] 12720/73 Heading A5A [Also in Divisions F4 G3 and H2] A ventilator comprises a fan, a smoke or gas detector, a fan motor operable at high and low speeds, a first switch by which high speed operation, low speed operation or automatic operation of the motor may be manually selected and an electronic circuit connected to the detector and controlling the motor such that upon a preselected smoke density threshold being detected by the detector, the fan motor is connected by a second switch controlled by the circuit to operate at high speed regardless of the position of the first switch. Ventilator construction. Figure 1 shows a frame 1 containing a shutter 1' of known construction and driven by an electromagnet, a fan 2 driven by a motor 12, a string 3 for manual switching between automatic and manual operating conditions, lamps 4, 5 respectively indicating automatic and manual operation, an inlet 6 for smoke or gas and inside which is located a detecting element 10 in the form of a gas-sensitive semiconductor, which is heated to a specified temperature by a low current and has the characteristic that its resistance decreases rapidly upon absorption of smoke or gas Fig. 4 (not shown), an adjusting knob 8 for regulating the smoke density threshold which will cause high speed operation of the fan, and a neon lamp 9 for use when adjusting the position of the knob 8. Motor control circuit, lamp operation and calibration. Figure 2 shows an induction motor 12 having a main winding 16, an auxiliary winding 15 and capacitor 14, and a speed control winding 13, the windings 15, 16 being permanently connected through point b to an AC supply 11 and windings 13, 15 being connectible to this supply through points a, c and switches 18-21 and 26-28, which respectively constitute the first and second switches. A further switch 22, gauged to the first switch, controls the energisation of a coil 17 for opening and closing the shutter 1'. The supply 11 also feeds a transformer 31 having two secondary windings respectively supplying the detecting element 10 and the electronic circuit, which comprises an adjusting circuit part A (including element 10), an amplifying part having members 40..47 and a timing-out part D to drive the motor for a predetermined period after the smoke density has dropped below the preselected threshold. Lamps 4, 5 are connected with resistors 23, 24, 25 and 0 of which the latter has a high value. When the smoke density is below the threshold, a coil 30 is de-energised so that the second switch controlled by this coil is in position 26, 27 to shunt the resistor 0. Movement of the first switch contact 18 to contact 19, 20 or 21 respectively produces low speed operation, high speed operation or de-energisation of the motor 12, the current in circuit 4, 5, 23, 24, 25 being sufficient to 'fully light lamp 5 but insufficient to light lamp 4 in positions 19, 20. Switch 22 maintains coil 17 energised during movement of 18 between 19 and 20. When the smoke density reaches the threshold value, the signal from resistor 38 makes transistors 40, 43 successively conductive to energise a coil 48 and change a switch contact 50 from 51 to 52. Transistor 55 is thereby switched on to energise the coil 30 and charge capacitor 531. Contact 26 changes to position 28 to energise the motor 12 at high speed irrespective, of the position of contact 18, energise the coil 17 (if switch 18 is on contact 21) and insert resistor 0 into circuit, the latter action producing a voltage difference between terminals a, c causing high speed operation if switch contact 18 is in position 19 and also causing lamp 5 to be lit dimly. Lamp 4 is lit when contact 18 is on contact 21. When the smoke density falls below the threshold transistor 40 turns off to return switch contact 50 to position 51, but transistor 55 is kept on by capacitor 531 until it has discharged to a predetermined voltage. Thus .contact 26 changes back to contact 27 after a further predetermined high speed operation of the motor 12 to expel smoke from remote corners of a room containing the ventilator. A lamp 9 controlled by the switch 50, 51, 52 is on or off according to whether the smoke density is below or above the threshold. This lamp is also used to calibrate the circuit part A to produce high speed operation at a desired threshold, the knob 8 adjusting the tap of resistor 38 towards resistor 36 (preset together with resistor 37) or towards resistor 37 to determine the points at which the lamp 9 goes out and the motor starts, and the lamp is lit and the motor continues to operate for a predetermined time. A typical calibrating operation is described. In a modification. Fig. 3 (not shown) the lamp 9 is omitted and a normally-closed switch is provided in series with the capacitor 531, this switch being 'opened during calibration to disable the timing-out circuit D to determine the instants of switch-on and switch-off of the motor. A resistor 34 limits variation of the output of element 10 caused by moisture and heat.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7617872A JPS5119693B2 (en) | 1972-07-28 | 1972-07-28 | |
JP7618072A JPS4933490A (en) | 1972-07-28 | 1972-07-28 | |
JP47076181A JPS509094B2 (en) | 1972-07-28 | 1972-07-28 | |
JP7617972A JPS4933458A (en) | 1972-07-28 | 1972-07-28 | |
JP7791272A JPS509096B2 (en) | 1972-08-02 | 1972-08-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1424616A true GB1424616A (en) | 1976-02-11 |
Family
ID=27524607
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1272073A Expired GB1424616A (en) | 1972-07-28 | 1973-03-16 | Ventilator |
Country Status (10)
Country | Link |
---|---|
US (1) | US3826180A (en) |
CA (1) | CA999359A (en) |
DE (1) | DE2314340A1 (en) |
FI (1) | FI56455C (en) |
FR (1) | FR2195273A5 (en) |
GB (1) | GB1424616A (en) |
IT (1) | IT984430B (en) |
NL (1) | NL153994B (en) |
NO (1) | NO137708C (en) |
SE (1) | SE392155B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3245302A1 (en) * | 1982-12-08 | 1984-06-14 | Miele & Cie GmbH & Co, 4830 Gütersloh | Vapour extractor hood with hob |
GB2141928A (en) * | 1983-06-07 | 1985-01-09 | Dixon International Ltd | Ventilator device |
Families Citing this family (45)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3952808A (en) * | 1974-01-23 | 1976-04-27 | National Research Development Corporation | Fire protection systems |
GB1479793A (en) * | 1975-04-02 | 1977-07-13 | Kg Smoke Dispersal Ltd | Fire safety systems |
US4054084A (en) * | 1975-11-18 | 1977-10-18 | William Francis Palmer | Fire and smoke free system for high rise building stairways |
US4007456A (en) * | 1975-12-01 | 1977-02-08 | Craftor Inc. | Gas detecting and warning system |
US4105015A (en) * | 1977-03-09 | 1978-08-08 | William C. Isom | Exhaust hood energy saving device |
US4360801A (en) * | 1980-04-14 | 1982-11-23 | Stanley Vemco | Home security and garage door operator system |
US4338526A (en) * | 1980-04-14 | 1982-07-06 | Multi-Elmac | Garage door operator with gas sensor |
NZ201460A (en) * | 1981-08-17 | 1986-11-12 | Allware Agencies Ltd | Multipurpose microprocessor controlled heating and cooling fan |
US4463896A (en) * | 1982-03-11 | 1984-08-07 | Schaus Herbert J | Methods and apparatus for the control of smoke and fire in buildings |
US4552325A (en) * | 1982-09-24 | 1985-11-12 | Lockheed Corporation | Emergency smoke disposal system for pressurized aircraft |
US4580447A (en) * | 1984-04-13 | 1986-04-08 | The United States Of America As Represented By The Secretary Of The Army | Function test equipment for smoke and gas munitions |
NO158391C (en) * | 1985-02-08 | 1988-08-31 | Flaekt Ab | FIRE WARNING SYSTEM FOR LIVING ROOM. |
US4658707A (en) * | 1985-09-27 | 1987-04-21 | Hawkins Vernon F | Automatic air purifier for vehicles |
JPH067897B2 (en) * | 1986-10-20 | 1994-02-02 | 三洋電機株式会社 | Air purifier controller |
FI83696B (en) * | 1987-01-27 | 1991-04-30 | Halton Oy | FOERFARANDE FOER REGLERING AV VENTILATION. |
US4818970A (en) * | 1987-08-13 | 1989-04-04 | Gpac, Inc. | Fire condition detection and control system for air moving and filtering units |
BE1001873A4 (en) * | 1988-11-22 | 1990-04-03 | Dehnen Yves Michel | Servo-valve |
US5074137A (en) * | 1989-01-24 | 1991-12-24 | Harris Ronald J | Programmable atmospheric stabilizer |
US4903685A (en) * | 1989-01-24 | 1990-02-27 | Melink Stephen K | Variable exhaust controller for commercial kitchens |
US5067394A (en) * | 1990-08-02 | 1991-11-26 | Thomas Cavallero | Airborne particle exhaust system |
JP2594391B2 (en) * | 1991-10-18 | 1997-03-26 | 松下精工株式会社 | Automatic operation device for ventilation fan |
US5252030A (en) * | 1991-10-18 | 1993-10-12 | Matsushita Seiko Co., Ltd. | Automatic operation apparatus for ventilating fan |
US5576739A (en) * | 1992-06-18 | 1996-11-19 | Phy-Con. Inc. | Carbon monoxide safety system |
US5410299A (en) * | 1992-11-05 | 1995-04-25 | Hard; Mindy J. | Smoke detector |
US5438324A (en) * | 1993-10-12 | 1995-08-01 | Chyi; Lindgren L. | Gas removal apparatus |
ATE219231T1 (en) * | 1996-12-23 | 2002-06-15 | Medina Manuel Sierra | HOUSEHOLD APPARATUS FOR DETECTING AND EXCELLING GAS |
JPH114905A (en) * | 1997-04-23 | 1999-01-12 | Bunka Shutter Co Ltd | Device and method for fire extinguishing and smoke absorbing using water mist |
US6110038A (en) * | 1998-11-12 | 2000-08-29 | Stern; David A. | System for detecting and purging carbon monoxide |
DE19907149A1 (en) * | 1999-02-19 | 2000-08-24 | Bsh Bosch Siemens Hausgeraete | Extractor hood device for intended use above a hotplate |
US6392536B1 (en) | 2000-08-25 | 2002-05-21 | Pittway Corporation | Multi-sensor detector |
US6967582B2 (en) * | 2002-09-19 | 2005-11-22 | Honeywell International Inc. | Detector with ambient photon sensor and other sensors |
US6844691B2 (en) * | 2003-01-02 | 2005-01-18 | Chao-Cheng Chiang | Ventilator having an abnormal operation indication device |
US6776708B1 (en) | 2003-01-27 | 2004-08-17 | Rick Daoutis | Smoke extraction system |
US7005994B2 (en) | 2003-10-08 | 2006-02-28 | Annex Security And Technical Services | Smart fire alarm and gas detection system |
US8021469B2 (en) * | 2005-07-14 | 2011-09-20 | Access Business Group International Llc | Control methods for an air treatment system |
KR101475248B1 (en) * | 2007-04-06 | 2014-12-22 | 코닌클리케 필립스 엔.브이. | air pollution sensor system |
JP2008270623A (en) * | 2007-04-23 | 2008-11-06 | Fujitsu Ltd | Heat radiation component and electronic equipment |
US7683794B2 (en) * | 2007-05-15 | 2010-03-23 | David Contreras | Carbon monoxide safety system for preventing entry into a dwelling containing toxic gases |
US9053626B2 (en) | 2011-05-02 | 2015-06-09 | Daydream Believers, Llc | Programmable carbon monoxide safety device |
GB2504875B (en) * | 2011-06-18 | 2014-07-16 | Custom Electronics Ltd | Controlling smoke and heat evacuation and ventilation devices |
NO337239B1 (en) * | 2013-12-06 | 2016-02-22 | Storroesaeter Rune | System and method for extracting smoke from road tunnels |
US20160023770A1 (en) * | 2014-07-25 | 2016-01-28 | Nathan Thompson | Air heating apparatus useful for heating an aircraft interior |
CN106194795A (en) * | 2016-08-24 | 2016-12-07 | 合肥超赢工业设计有限公司 | A kind of energy-saving industrial exhaust fan |
CN107091241A (en) * | 2017-06-29 | 2017-08-25 | 苏州见真物联科技有限公司 | A kind of infrared induction intelligent fan |
US11208839B2 (en) * | 2020-03-03 | 2021-12-28 | Gmi Holdings, Inc. | Space venting upward acting door system and method |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2470511A (en) * | 1944-07-12 | 1949-05-17 | James B Shaver | Detection of impurities |
-
1973
- 1973-03-15 US US00341781A patent/US3826180A/en not_active Expired - Lifetime
- 1973-03-16 GB GB1272073A patent/GB1424616A/en not_active Expired
- 1973-03-22 DE DE19732314340 patent/DE2314340A1/en active Pending
- 1973-03-23 IT IT67848/73A patent/IT984430B/en active
- 1973-03-28 NL NL737304301A patent/NL153994B/en not_active IP Right Cessation
- 1973-03-28 FI FI953/73A patent/FI56455C/en active
- 1973-03-29 FR FR7311416A patent/FR2195273A5/fr not_active Expired
- 1973-03-29 NO NO1291/73A patent/NO137708C/en unknown
- 1973-03-29 SE SE7304446A patent/SE392155B/en unknown
- 1973-03-30 CA CA167,576A patent/CA999359A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3245302A1 (en) * | 1982-12-08 | 1984-06-14 | Miele & Cie GmbH & Co, 4830 Gütersloh | Vapour extractor hood with hob |
GB2141928A (en) * | 1983-06-07 | 1985-01-09 | Dixon International Ltd | Ventilator device |
Also Published As
Publication number | Publication date |
---|---|
FI56455C (en) | 1980-01-10 |
NO137708B (en) | 1977-12-27 |
NO137708C (en) | 1978-04-12 |
FR2195273A5 (en) | 1974-03-01 |
NL153994B (en) | 1977-07-15 |
CA999359A (en) | 1976-11-02 |
US3826180A (en) | 1974-07-30 |
FI56455B (en) | 1979-09-28 |
DE2314340A1 (en) | 1974-02-14 |
IT984430B (en) | 1974-11-20 |
SE392155B (en) | 1977-03-14 |
NL7304301A (en) | 1974-01-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
746 | Register noted 'licences of right' (sect. 46/1977) | ||
PE20 | Patent expired after termination of 20 years |
Effective date: 19930315 |