IT1007859B - Rivelatore di incendio incipiente - Google Patents
Rivelatore di incendio incipienteInfo
- Publication number
- IT1007859B IT1007859B IT21278/74A IT2127874A IT1007859B IT 1007859 B IT1007859 B IT 1007859B IT 21278/74 A IT21278/74 A IT 21278/74A IT 2127874 A IT2127874 A IT 2127874A IT 1007859 B IT1007859 B IT 1007859B
- Authority
- IT
- Italy
- Prior art keywords
- fire detector
- incipient fire
- incipient
- detector
- fire
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/02—Analysing fluids
- G01N29/036—Analysing fluids by measuring frequency or resonance of acoustic waves
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/025—Change of phase or condition
- G01N2291/0256—Adsorption, desorption, surface mass change, e.g. on biosensors
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/350,091 US3953844A (en) | 1973-04-11 | 1973-04-11 | Incipient fire detector |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1007859B true IT1007859B (it) | 1976-10-30 |
Family
ID=23375208
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT21278/74A IT1007859B (it) | 1973-04-11 | 1974-04-11 | Rivelatore di incendio incipiente |
Country Status (7)
Country | Link |
---|---|
US (1) | US3953844A (it) |
JP (1) | JPS49131696A (it) |
CA (1) | CA1063208A (it) |
DE (1) | DE2415889C3 (it) |
FR (1) | FR2225797B1 (it) |
GB (1) | GB1446397A (it) |
IT (1) | IT1007859B (it) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4035788A (en) * | 1976-01-15 | 1977-07-12 | Celesco Industries Inc. | Incipient fire detector |
JPS5345198A (en) * | 1976-10-05 | 1978-04-22 | Matsushita Electric Works Ltd | Smoke sensor |
FR2391742A1 (fr) * | 1977-05-23 | 1978-12-22 | Brunswick Corp | Detecteur de debut d'incendie |
DE2724510C2 (de) * | 1977-05-31 | 1985-04-11 | Brunswick Corp., Skokie, Ill. | Frühwarnfeuermelder |
US4223559A (en) * | 1978-05-09 | 1980-09-23 | Brunswick Corporation | Apparatus and methods for detecting an incipient fire condition |
US4282520A (en) * | 1978-10-25 | 1981-08-04 | Shipp John I | Piezoelectric horn and a smoke detector containing same |
US4254414A (en) * | 1979-03-22 | 1981-03-03 | The United States Of America As Represented By The Secretary Of The Navy | Processor-aided fire detector |
DE2966303D1 (en) * | 1979-07-04 | 1983-11-17 | Graviner Ltd | Improvements in and relating to the detection of particles in a gaseous medium |
GB8307410D0 (en) * | 1983-03-17 | 1983-04-27 | Secr Social Service Brit | Determining presence of contaminant in gaseous carrier |
CH662421A5 (de) * | 1983-07-13 | 1987-09-30 | Suisse Horlogerie Rech Lab | Piezoelektrischer kontaminationsdetektor. |
JPH0644319B2 (ja) * | 1986-06-30 | 1994-06-08 | 清水建設株式会社 | クリ−ンル−ムにおける防災用多段階警報設備 |
DE3643813A1 (de) * | 1986-12-20 | 1988-07-07 | Werner Wildeboer | Rauchmelder fuer eine lueftungsleitung |
US4785288A (en) * | 1987-07-31 | 1988-11-15 | Allen-Bradley Company, Inc. | Modular smoke detector |
US4782334A (en) * | 1987-08-13 | 1988-11-01 | Meaney Thomas A | Vapor or gas detector and alarm system |
US4879546A (en) * | 1987-11-30 | 1989-11-07 | Kent-Moore Corporation | Ultrasonic hand-held refrigerant leak detector |
US4980672A (en) * | 1989-10-17 | 1990-12-25 | Generation 2, Inc. | Overhead socket smoke detector with theft alarm |
US5734335A (en) * | 1989-12-20 | 1998-03-31 | Finmeccanica S.P.A. | Forest surveillance and monitoring system for the early detection and reporting of forest fires |
US6753786B1 (en) | 2000-08-11 | 2004-06-22 | Walter Kidde Portable Equipment, Inc. | Microprocessor-based combination smoke and carbon monoxide detector having intelligent hush feature |
JP3729181B2 (ja) * | 2003-03-14 | 2005-12-21 | セイコーエプソン株式会社 | 測定方法及び測定信号出力回路並びに測定装置 |
US7049824B2 (en) * | 2003-03-27 | 2006-05-23 | International Business Machines Corporation | Differential particulate detection system for electronic devices |
JP5585792B2 (ja) * | 2011-10-26 | 2014-09-10 | Tdk株式会社 | 粉体センサ |
JP5472652B2 (ja) * | 2011-12-19 | 2014-04-16 | Tdk株式会社 | 粉体センサ |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB796010A (en) * | 1953-08-28 | 1958-06-04 | Kent Ltd G | Improvements in gas sampling apparatus |
DE1171310B (de) * | 1960-02-26 | 1964-05-27 | Cerberus Ag | Feuermelder mit einem Aerosol-Indikator zur Feststellung von in Luft schwebenden Verbrennungsprodukten |
US3289481A (en) * | 1964-12-24 | 1966-12-06 | Hays Corp | Gas sampling device |
DE1936590C3 (de) * | 1969-07-18 | 1973-12-13 | Total Foerstner & Co, 6802 Ladenburg | Verfahren und Schaltungsanordnung zum Ermitteln des Auslosezeitpunktes einer Reaktion an einem Orte auf eine mit kon stanter Geschwindigkeit sich auf diesen Ort hin bewegenden Aktion |
US3653253A (en) * | 1970-01-05 | 1972-04-04 | Thermo Systems Inc | Aerosol mass concentration spectrometer |
US3715911A (en) * | 1970-05-11 | 1973-02-13 | Susquehanna Corp | Apparatus for sensing air-borne particulate matter |
-
1973
- 1973-04-11 US US05/350,091 patent/US3953844A/en not_active Expired - Lifetime
-
1974
- 1974-03-12 CA CA194,750A patent/CA1063208A/en not_active Expired
- 1974-03-21 GB GB1256174A patent/GB1446397A/en not_active Expired
- 1974-03-21 FR FR7409670A patent/FR2225797B1/fr not_active Expired
- 1974-03-22 JP JP49031608A patent/JPS49131696A/ja active Pending
- 1974-04-02 DE DE2415889A patent/DE2415889C3/de not_active Expired
- 1974-04-11 IT IT21278/74A patent/IT1007859B/it active
Also Published As
Publication number | Publication date |
---|---|
DE2415889B2 (de) | 1981-05-27 |
DE2415889C3 (de) | 1982-02-11 |
JPS49131696A (it) | 1974-12-17 |
GB1446397A (en) | 1976-08-18 |
FR2225797B1 (it) | 1978-04-21 |
DE2415889A1 (de) | 1974-10-24 |
US3953844A (en) | 1976-04-27 |
CA1063208A (en) | 1979-09-25 |
FR2225797A1 (it) | 1974-11-08 |
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