US3693401A - Apparatus for checking operation of smoke detectors - Google Patents
Apparatus for checking operation of smoke detectors Download PDFInfo
- Publication number
- US3693401A US3693401A US89176A US3693401DA US3693401A US 3693401 A US3693401 A US 3693401A US 89176 A US89176 A US 89176A US 3693401D A US3693401D A US 3693401DA US 3693401 A US3693401 A US 3693401A
- Authority
- US
- United States
- Prior art keywords
- smoke detector
- spray
- valve
- carrier medium
- housing
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
- B65D83/28—Nozzles, nozzle fittings or accessories specially adapted therefor
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/12—Checking intermittently signalling or alarm systems
- G08B29/14—Checking intermittently signalling or alarm systems checking the detection circuits
- G08B29/145—Checking intermittently signalling or alarm systems checking the detection circuits of fire detection circuits
Definitions
- the smoke detec 1969 Switzerland "1701 1/69 tor responds to the test medium to indicate operability thereof.
- the internal volume of the housing is equal to [52] 0.8. CI ..73/1 R, ZZZ/402.13, 340/410 l [51] 1m. 01. ..G08b 13/18, G08b 27/00 ma! the detec [58] Field of Search..73/l R; 252/359 A; 222/402.l3
- Smoke detectors are employed to respond to smoke particles or aerosols resulting from combustion and to initiate an alarm signal in the event of their presence in the atmosphere.
- Smoke detectors usually contain at least one measuring chamber in which the characteristicsof the air situated therein can be measured or observed. Examples of such smoke detectors are ionization fire alarms, in which thealteration of the conductivity of the air in the measuring chamber under the influence of radioactive radiation is observed, and optical smoke detectors, in which the absorption or scattering of light in the measuring chamber by smoke particles or aerosols is made use of.
- the invention is, however, not limited to testing smoke detectors of the kinds mentioned above, but may be employed for testing smoke detectors of other kinds.
- a known manner of generating such a spray is by releasing through a suitable valve a carrier gas held under pressure in a container with an added solid or poorly volatile substance. After evaporation of the carrier means there remains behind a long-persistent cloud of the added substance.
- Such a spray is unsuitable for the testing of smoke detectors, since once again there are formed in the measuring chamber deposits of the added substance, which may remain for daysor weeks and make the detector device inoperable. Cleaning of the alarm device after each test is therefore necessary.
- gases of high molecular weight such as are used for example as carrier gases for aerosol sprays, without added substances.
- gases usually have a boiling point below 20 C and are in a gaseous condition during the test.
- a disadvantage is that such a method of testing is suitable only for smoke detectors which respond to a change in the molecular weight of the gas within the measuring chamber, that is, ionization fire alarms, but is unsuitable for optical fire alarms.
- testing gas must be present at a very high concentration. Since it disperses very rapidly over the whole ambient space, large amounts of the test substance are necessary. This method also cannot be regarded as practicable.
- a device for testing the operation of smoke detector devices comprising a housing member adapted to be placed over a smoke detector device, and having an internal volume equal to at least twice the internal volume of the detector device, a container containing a non-poisonous carrier medium liquified under pressure and having a boiling point in the range of 20 C to +20 C, and provided with a spray valve of which the nozzle leads into the interior of the housing and which is arranged when actuated to deliver said liquid medium as a spray into the housing.
- the invention therefore, provides a device which permits the operation of a smoke detector to be treated by generating a test aerosol.
- the test aerosol persists for an appropriate time, does not soil the smoke detector and does not have toxic characteristics.
- the housing of the testing device effectively forms a sealed chamber around the smoke detector under test.
- the device is so arranged that only a small quantity of the test substance is necessary for one test so that after the test the smoke detector immediately returns to an operational condition.
- Embodiments of the testing device are suitable for all known types of smoke detectors.
- Particularly suitable carrier mediums are fully halogenated hydrocarbons with suitable boiling points. Mixtures of such halogenated hydrocarbons, in which one component has a boiling point below -20 C, while the other component has a boiling point between 0 and +10 C are particularly advantageous.
- the spray valve is preferably a known spray valve which has as its aperture a nozzle which is small and is so formed that, together with appropriate construction of the carrier medium container, an appropriate emission and dispersion of the carrier medium is ensured.
- FIG. 1 is an axial section through a device in accordance with the invention
- FIG. 2 is a side elevation of the device of FIG. 1, showing its application to testing a smoke detector
- FIG. 3 shows a modification of the device of FIGS. 1
- the device shown in FIGS. I and 2 comprises a cylindrical tube 1 to which there is secured at one end a sleeve member 2 made of a deformable material, for example rubber or soft plastic material.
- Member 2 is suitably formed as a bellows and is provided at its upper end 17 with an opening so that it may be placed over the fire alarm device to be tested.
- Stirrup 3 is pivoted by means of rivets or screws 4 to the arms of a forked member 20 secured to the top of a supporting I rod 5 (see FIG. 2).
- Stirrup 3 is secured to tube 1 by a peg 21 and a screw 22 with a knurled head, which pass through slots 23 in the limbs of the stirrup.
- the foot portion engages in notches 24 formed in the lower end portion of tube 1 and the stirrup is held to the tube by tightening screw 22.
- Spray canister 6 comprises a container 7 containing a liquid and a spray valve 8.
- Valve 8 is constructed in a known manner so that pressure on a valve knob or head 9, which is provided with a fine nozzle, produces an emission of liquid from the container 7.
- pressure on the valve knob 9 produces a connection between a riser tube 19 within the container 7 and the exit nozzle in the valve knob 9.
- risertube 19 ensures that the fluid contents of the container 7 emerge through the valve 8, and not the carrier gas lying above the fluid in the container.
- a suitable device such as a spring-loaded plunger 10 again closes the valve 8.
- a particularly advantageous typeof valve is a dosing valve which, in response to a single application of pressure on the release knob 9, allows only a predetermined quantity of carrier material to emerge from the container and is then automatically closed.
- annular plate 11 Within the tube 1 is arranged an annular plate 11, within the aperture ofwhich is mounted a specially shaped annular member 12.
- the form of member 12 is such that on the one hand it engages the valve knob 9, the nozzle of which is directed towards the upper part of the tube 1, and on the other hand it can be displaced relative to annular member 11 without excessive play.
- An actuating structure comprises rods 13 coupling a perforated plate 14 to a plate 25 which is connected to annular member 12.
- the mode of operation of the devise is as follows:
- the testing device carried on mounting rod 5, is applied to the smoke detector 16 (FIG. 2) to be tested so that thecircumference of the bellows-like sleeve 2 engages the surface 15 to which the smoke detector 16 is mounted.
- the smoke detector 16 is then situated within the upper part 17 of the sleeve 2.
- the testing device is then urged upwardly by means of rod 5, thus deforming sleeve 2, until the lower surface of the smoke detector 16 strikes against the perforated plate 14.
- the testing device is urged further upward.
- the resultant pressure on the plate 14 causes the member 12 and thus the valve knob 9 also to be pressed downwards relative to the tube 1 and canister 6,
- the sleeve 2 applied to the supporting surface 15, prevents the test aerosol from emerging into the ambient space.
- the device therefore operates sparingly and economically, since only a very small quantity of test aerosol is necessary to actuate an operable smoke detector.
- the perforated plate 14 is maintained at a predetermined distance from member 12 by spac' ing rods 13. It is thus ensured that sufficient volume exists within the sleeve 2 for proper aerosol formation. This volume is advantageously chosen to be not less than the internal volume of the smoke detector 16.
- FIG. 3 shows a modified embodiment wherein valve 8 is actuated by pressure of an annular plate against the support surface 15 of the smoke detector 16.
- the opening of plate 140 is sufficient-to accommodate smoke detector 16 therein without interference.
- Rods 13a are similar to rods 13 of FIGS. 1 and 2.
- the remaining structure of the device is as shown in FIGS. 1 and 2 and the operation is also the same as described above.
- the filling consists of a carrier medium with a boiling point below room temperature.
- This carrier medium is mixed with a substance of low volatility.
- the carrier medium When, after a brief interval, the carrier medium has evaporated from the aerosol particles produced by spraying, there remains a fine cloud of the added substance.
- the substances chosen are almost always substances of poor volatility, which become deposited in the smoke detector and after a short time make the smoke detector inoperative. Frequency cleaning is therefore necessary.
- a fully halogenated hydrocarbon or a mixture of such hydrocarbons.
- the desired boiling point may readily be obtained by using a mixture of halogenated hydrocarbons, of which one component is a normal, known carrier medium with a boiling point of 20 C, for example dichlorfluorrnethane, while the other component has a boiling point between 0 and 10 C.
- a substance suitable for use as this second component is dichlortetrafluorethane.
- the persistence of the aerosol may be adjusted as desired from a few seconds to one minute.
- the lower boiling-point component is then present in amounts in the range of percent to 90 percent by volume of the total contents. Both simple chemical compounds and also mixtures of two or more components may be used, provided that the conditions regarding the boiling point and the remaining characteristics are fulfilled.
- the embodiment shown in the drawings is a test device which is preferably built in rotationally symmetrical form and is suitable for testing smoke detectors which are mounted to a supporting surface such as surface of FIG. 2.
- the test device must be appropriately modified. It is important, however, that the housing portion of the testing device shall enclose the whole smoke detector, while sufficient space exists within the housing for the test aerosol to be formed. In general this will be achieved if the free space within the housing, when not urged over the detector under test, is at least twice as large as the volume within the smoke detector. That is, after the test device has been applied to the smoke detector, and urged toward the detector, at least the same volume remains available for test aerosol formation as the internal volume of the smoke detector itself.
- the spray canister can be fitted at any desired position within the device, e.g., at the bottom, or on a side wall.
- the spray valve must be so arranged that the nozzle emerges through an aperture into the interior of the housing of the testing device.
- the spray canister it is not necessary for the spray canister to be arranged within a further portion of the housing of the device; it is possible merely to secure the spray canister completely externally of the device and to interconnect same with the activating portion of the system, although it is convenient to locate the spray canister 6 within the tube 1 of the testing device as shown in the drawings.
- the actuation of the spray valve can be effected either by hand, e.g., by means of a suitable activating arrangement upon the mounting rod 5, or automatically by the pressure of the device to be tested, as in the embodiment of FIGS. 1 and 2 described above. It may be arranged, by obvious modifications of the arrangement described, that valve actuation is effected by pressure of a part of the testing device upon the alarm device base, instead of upon the alarm device itself. The latter arrangement would be similar to that shown in FIG. 3.
- a device for testing the operation of smoke detector devices comprising a housing member (1, 2) having an open portion adapted to be placed over a smoke detector device (16) under test, and enclosing an internal space for the generation of aerosol spray therein, and having means preventing entry of the smoke detector device into a portion of said internal space, to leave said portion unobstructed by the smoke detector device; a spray means (6) including:
- said carrier medium comprises at least one fully halogenated hydrocarbon.
- said carrier medium comprises a mixture of two halogenated hydrocarbons, of which one has a boiling point below 20 C and the other of which has a boiling point between 0 C and +1 0 C.
- said carrier medium comprises a mixture of dichlorfluormethane and dichlortetrafluorethane.
- said carrier medium comprises between 10 percent and percent by volume of dichlortetrafluorethane.
- said housing member comprises a resiliently deformable bellows member (2) having said open portion.
- said actuating means includes an actuator member (12) slideably mounted in said housing (1, 2) and operatingly coupled to said spray valve (8); and means for moving said actuator member (12) to operate said valve (8) in response to said applied relative pressure.
- said moving means includes means engaging said smoke detector under test when said relative pressure is applied, and for moving said actuator member (12) responsive to said applied pressure.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1701169A CH501284A (de) | 1969-11-14 | 1969-11-14 | Vorrichtung zur Prüfung der Funktionsbereitschaft von Rauchmeldern |
Publications (1)
Publication Number | Publication Date |
---|---|
US3693401A true US3693401A (en) | 1972-09-26 |
Family
ID=4422078
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US89176A Expired - Lifetime US3693401A (en) | 1969-11-14 | 1970-11-13 | Apparatus for checking operation of smoke detectors |
Country Status (5)
Country | Link |
---|---|
US (1) | US3693401A (fr) |
CH (1) | CH501284A (fr) |
DE (1) | DE2054027C3 (fr) |
FR (1) | FR2069366A5 (fr) |
GB (1) | GB1305125A (fr) |
Cited By (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3729979A (en) * | 1971-05-28 | 1973-05-01 | Boeing Co | Combustion products generating and metering device |
US4271693A (en) * | 1979-12-10 | 1981-06-09 | Bute Donald R | Device for testing smoke detector alarms |
US4301674A (en) * | 1980-01-14 | 1981-11-24 | Haines William H | Smoke detector tester |
US4462244A (en) * | 1982-05-03 | 1984-07-31 | Lee Thomas G | Apparatus for field testing a smoke detector |
FR2572293A1 (fr) * | 1984-10-30 | 1986-05-02 | Air Liquide | Composition de controle du fonctionnement des installations de detection d'incendie et application a divers types de detecteurs |
US5060503A (en) * | 1990-02-08 | 1991-10-29 | Bacharach, Inc. | Test kit for gas detectors |
US5076966A (en) * | 1990-07-02 | 1991-12-31 | John J. McSheffrey | Composition and method for testing smoke detectors |
US5170148A (en) * | 1990-06-04 | 1992-12-08 | Jack Duggan | Radiant energy testing device for fire detectors |
US5285672A (en) * | 1991-12-13 | 1994-02-15 | Shell Oil Company | Multipurpose dynamic controlled atmosphere chamber |
US5309148A (en) * | 1992-12-18 | 1994-05-03 | Birk David M | Apparatus and method for testing smoke detector operation |
WO1994018653A1 (fr) * | 1993-02-15 | 1994-08-18 | Cerberus Ag | Dispositif permettant de verifier des detecteurs de fumee |
US5361623A (en) * | 1990-07-30 | 1994-11-08 | Leon Cooper | Delivery system for smoke detector testing spray formulation |
FR2715223A1 (fr) * | 1994-01-19 | 1995-07-21 | Noel Francis | Dispositif de vérification du fonctionnement des cellules de détection de gaz. |
US5604295A (en) * | 1995-03-29 | 1997-02-18 | British-American Tobacco Company Limited | Calibrating particle emission-detecting instruments |
US5670946A (en) * | 1993-05-04 | 1997-09-23 | No Cilmb Products Limited | Smoke detector sensitivity testing apparatus |
US20020047782A1 (en) * | 2000-09-23 | 2002-04-25 | Joachim Schneider | Device for and method of testing a fire alarm |
US6640608B2 (en) * | 2000-05-02 | 2003-11-04 | No Climb Products Limited | Ducted smoke or fire detector testing tool |
US6741181B2 (en) | 2000-05-17 | 2004-05-25 | Robert E. Skaggs | System for testing a duct smoke or other hazardous gas detector and method for use thereof |
US6803853B2 (en) * | 2000-08-18 | 2004-10-12 | Robert Bosch Gmbh | Testing device for operation testing of a temperature sensor of an alarm or an alarm and a method of operation testing of an alarm |
WO2005029435A1 (fr) * | 2003-09-24 | 2005-03-31 | Vision Fire & Security Pty Ltd | Procede et appareil permettant de determiner l'etat operationnel d'un equipement de controle de la pollution |
US6875373B2 (en) * | 2001-03-16 | 2005-04-05 | No-Climb Products Ltd. | Composition for use in the testing of smoke detectors |
US20050116832A1 (en) * | 2003-12-01 | 2005-06-02 | Jing-Cherng Wey | Gas safety detector having self-detection function |
US20060081033A1 (en) * | 2004-10-19 | 2006-04-20 | Industrial Scientific Corporation | Apparatus and method for testing gas detection instruments |
US20060101925A1 (en) * | 2004-10-19 | 2006-05-18 | Industrial Scientific Corporation | Apparatus and method for testing gas detection instruments |
US20060150711A1 (en) * | 2002-09-03 | 2006-07-13 | Hong Soon H | Gas supply adapter |
US20070186618A1 (en) * | 2006-01-13 | 2007-08-16 | Jack Ackerman | Method and apparatus for testing detectors |
US20090168298A1 (en) * | 2007-12-28 | 2009-07-02 | Tdk Corporation | Through-type multilayer capacitor array |
US20090188296A1 (en) * | 2008-01-25 | 2009-07-30 | D Amico Sam | Method and apparatus for testing smoke and fire detectors |
US20090224081A1 (en) * | 2008-03-04 | 2009-09-10 | William Rossiter | Apparatus for control of inappropriate aerosol residue and surface deposits |
US20090254307A1 (en) * | 2006-10-23 | 2009-10-08 | Deriso Jr Sam C | Systems and Methods for Operational Verification of a Missile Approach Warning System |
US20090273464A1 (en) * | 2004-12-13 | 2009-11-05 | Stewart Pepper | Synthetic smoke generator and smoke detector tester using such a generator |
US20090308134A1 (en) * | 2005-11-24 | 2009-12-17 | Stewart Pepper | Test equipment for testing hazard detectors |
US20100085201A1 (en) * | 2008-10-03 | 2010-04-08 | Siemens Aktiengesellschaft | Function check for a gas-alarm annunciator |
US8205478B1 (en) * | 2008-12-24 | 2012-06-26 | Hallisey Richard D | Smoke detector testing tool |
US8500039B2 (en) | 2011-07-25 | 2013-08-06 | Arthur L Allen, Jr. | Remote actuation device for spray cans |
USD779352S1 (en) * | 2015-11-21 | 2017-02-21 | Garfield Scarder | Apparatus for testing smoke detectors |
US20180293878A1 (en) * | 2015-10-06 | 2018-10-11 | Thorn Security Limited | Smoke detector tester |
US11615699B2 (en) * | 2017-04-20 | 2023-03-28 | Tyco Fire & Security Gmbh | Smoke detector availability test |
US11614429B1 (en) * | 2021-09-21 | 2023-03-28 | Saudi Arabian Oil Company | Universal autonomous safety guard |
US11650152B2 (en) | 2018-12-11 | 2023-05-16 | Carrier Corporation | Calibration of an optical detector |
US11662302B2 (en) | 2018-12-11 | 2023-05-30 | Carrier Corporation | Calibration of optical detector |
US11879840B2 (en) | 2018-12-11 | 2024-01-23 | Carrier Corporation | Calibration of an optical detector using a micro-flow chamber |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3307616A1 (de) * | 1983-03-03 | 1984-09-06 | Siemens AG, 1000 Berlin und 8000 München | Anordnung zur umschaltung einzelner melder auf inspektionsbetrieb in einer gefahrenmeldeanlage |
EP0141030A1 (fr) * | 1983-08-29 | 1985-05-15 | Cerberus Ag | Dispositif de dosage pour un appareil de vérification de la sensibilité de réaction de détecteurs de gaz |
DE10353837B4 (de) * | 2003-11-18 | 2017-05-24 | Robert Bosch Gmbh | Prüfeinrichtung für Brandmelder |
EP1669961B1 (fr) | 2004-12-09 | 2014-06-18 | Siemens Aktiengesellschaft | Mélange de gaz pour tester le fonctionnement des détecteurs de fumée |
CA2590840A1 (fr) * | 2004-12-14 | 2006-06-22 | Siemens Schweiz Ag | Compose fluide pouvant servir a verifier le fonctionnement de detecteurs de fumee et utilisation connexe |
EP1672605A1 (fr) * | 2004-12-14 | 2006-06-21 | Siemens Schweiz AG | Mélange de fluides pour vérifier le fonctionnement d'un détecteur de fumée |
GB2499410B (en) * | 2012-02-14 | 2018-07-11 | Gas Safe Europe Ltd | An improved valve system for external enclosure type in-situ gas detector testers |
Citations (3)
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US2821048A (en) * | 1955-07-06 | 1958-01-28 | John T Efford | Dispensing device |
US2850615A (en) * | 1957-03-18 | 1958-09-02 | Acf Ind Inc | Fire simulator |
US3001524A (en) * | 1956-03-21 | 1961-09-26 | Riker Laboratories Inc | Aerosol dispensing apparatus |
-
1969
- 1969-11-14 CH CH1701169A patent/CH501284A/de not_active IP Right Cessation
-
1970
- 1970-11-03 DE DE2054027A patent/DE2054027C3/de not_active Expired
- 1970-11-13 US US89176A patent/US3693401A/en not_active Expired - Lifetime
- 1970-11-13 FR FR7040717A patent/FR2069366A5/fr not_active Expired
- 1970-11-16 GB GB5434570A patent/GB1305125A/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2821048A (en) * | 1955-07-06 | 1958-01-28 | John T Efford | Dispensing device |
US3001524A (en) * | 1956-03-21 | 1961-09-26 | Riker Laboratories Inc | Aerosol dispensing apparatus |
US2850615A (en) * | 1957-03-18 | 1958-09-02 | Acf Ind Inc | Fire simulator |
Cited By (58)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3729979A (en) * | 1971-05-28 | 1973-05-01 | Boeing Co | Combustion products generating and metering device |
US4271693A (en) * | 1979-12-10 | 1981-06-09 | Bute Donald R | Device for testing smoke detector alarms |
US4301674A (en) * | 1980-01-14 | 1981-11-24 | Haines William H | Smoke detector tester |
US4462244A (en) * | 1982-05-03 | 1984-07-31 | Lee Thomas G | Apparatus for field testing a smoke detector |
FR2572293A1 (fr) * | 1984-10-30 | 1986-05-02 | Air Liquide | Composition de controle du fonctionnement des installations de detection d'incendie et application a divers types de detecteurs |
EP0187053A1 (fr) * | 1984-10-30 | 1986-07-09 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Composition pour tester les détecteurs d'incendie |
US4715985A (en) * | 1984-10-30 | 1987-12-29 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes George Claude | Composition for checking the functioning of fire detection installations and application to various types of detectors |
US5060503A (en) * | 1990-02-08 | 1991-10-29 | Bacharach, Inc. | Test kit for gas detectors |
US5170148A (en) * | 1990-06-04 | 1992-12-08 | Jack Duggan | Radiant energy testing device for fire detectors |
US5076966A (en) * | 1990-07-02 | 1991-12-31 | John J. McSheffrey | Composition and method for testing smoke detectors |
US5361623A (en) * | 1990-07-30 | 1994-11-08 | Leon Cooper | Delivery system for smoke detector testing spray formulation |
US5285672A (en) * | 1991-12-13 | 1994-02-15 | Shell Oil Company | Multipurpose dynamic controlled atmosphere chamber |
US5309148A (en) * | 1992-12-18 | 1994-05-03 | Birk David M | Apparatus and method for testing smoke detector operation |
WO1994018653A1 (fr) * | 1993-02-15 | 1994-08-18 | Cerberus Ag | Dispositif permettant de verifier des detecteurs de fumee |
US5523744A (en) * | 1993-02-15 | 1996-06-04 | Cerberus Ag | Device for testing the operation of smoke detectors |
US5670946A (en) * | 1993-05-04 | 1997-09-23 | No Cilmb Products Limited | Smoke detector sensitivity testing apparatus |
FR2715223A1 (fr) * | 1994-01-19 | 1995-07-21 | Noel Francis | Dispositif de vérification du fonctionnement des cellules de détection de gaz. |
US5604295A (en) * | 1995-03-29 | 1997-02-18 | British-American Tobacco Company Limited | Calibrating particle emission-detecting instruments |
US6640608B2 (en) * | 2000-05-02 | 2003-11-04 | No Climb Products Limited | Ducted smoke or fire detector testing tool |
US6741181B2 (en) | 2000-05-17 | 2004-05-25 | Robert E. Skaggs | System for testing a duct smoke or other hazardous gas detector and method for use thereof |
US6803853B2 (en) * | 2000-08-18 | 2004-10-12 | Robert Bosch Gmbh | Testing device for operation testing of a temperature sensor of an alarm or an alarm and a method of operation testing of an alarm |
US20020047782A1 (en) * | 2000-09-23 | 2002-04-25 | Joachim Schneider | Device for and method of testing a fire alarm |
US6769285B2 (en) * | 2000-09-23 | 2004-08-03 | Robert Bosch Gmbh | Device for and method of testing a fire alarm |
US6875373B2 (en) * | 2001-03-16 | 2005-04-05 | No-Climb Products Ltd. | Composition for use in the testing of smoke detectors |
US7225661B2 (en) * | 2002-09-03 | 2007-06-05 | Honeywell Analytics Limited | Gas supply adapter |
US20060150711A1 (en) * | 2002-09-03 | 2006-07-13 | Hong Soon H | Gas supply adapter |
WO2005029435A1 (fr) * | 2003-09-24 | 2005-03-31 | Vision Fire & Security Pty Ltd | Procede et appareil permettant de determiner l'etat operationnel d'un equipement de controle de la pollution |
US8412481B2 (en) | 2003-09-24 | 2013-04-02 | Vision Fire & Security Pty Ltd | Method and apparatus for determining operational condition of pollution monitoring equipment |
US6995678B2 (en) * | 2003-12-01 | 2006-02-07 | Kaily Technology Co., Ltd. | Gas safety detector having self-detection function |
US20050116832A1 (en) * | 2003-12-01 | 2005-06-02 | Jing-Cherng Wey | Gas safety detector having self-detection function |
US20060081033A1 (en) * | 2004-10-19 | 2006-04-20 | Industrial Scientific Corporation | Apparatus and method for testing gas detection instruments |
US7275411B2 (en) * | 2004-10-19 | 2007-10-02 | Industrial Scientific Corporation | Apparatus and method for testing gas detection instruments |
US7281404B2 (en) * | 2004-10-19 | 2007-10-16 | Industrial Scientific Corporation | Apparatus and method for testing gas detection instruments |
US20060101925A1 (en) * | 2004-10-19 | 2006-05-18 | Industrial Scientific Corporation | Apparatus and method for testing gas detection instruments |
US20090273464A1 (en) * | 2004-12-13 | 2009-11-05 | Stewart Pepper | Synthetic smoke generator and smoke detector tester using such a generator |
US7852227B2 (en) * | 2004-12-13 | 2010-12-14 | Sata Limited | Synthetic smoke generator and smoke detector tester using such a generator |
US8966952B2 (en) * | 2005-11-24 | 2015-03-03 | Sata Limited | Test equipment for testing hazard detectors |
US20090308134A1 (en) * | 2005-11-24 | 2009-12-17 | Stewart Pepper | Test equipment for testing hazard detectors |
US7587926B2 (en) * | 2006-01-13 | 2009-09-15 | Hsi Fire & Safety Group, Llc | Method and apparatus for testing detectors |
US20070186618A1 (en) * | 2006-01-13 | 2007-08-16 | Jack Ackerman | Method and apparatus for testing detectors |
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US11650152B2 (en) | 2018-12-11 | 2023-05-16 | Carrier Corporation | Calibration of an optical detector |
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Also Published As
Publication number | Publication date |
---|---|
CH501284A (de) | 1970-12-31 |
FR2069366A5 (fr) | 1971-09-03 |
DE2054027B2 (de) | 1977-08-25 |
DE2054027A1 (de) | 1971-05-19 |
DE2054027C3 (de) | 1978-04-27 |
GB1305125A (fr) | 1973-01-31 |
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