NO20024896L - fire alarms - Google Patents

fire alarms

Info

Publication number
NO20024896L
NO20024896L NO20024896A NO20024896A NO20024896L NO 20024896 L NO20024896 L NO 20024896L NO 20024896 A NO20024896 A NO 20024896A NO 20024896 A NO20024896 A NO 20024896A NO 20024896 L NO20024896 L NO 20024896L
Authority
NO
Norway
Prior art keywords
fluid
detection portion
printed circuit
circuit board
respective emission
Prior art date
Application number
NO20024896A
Other languages
Norwegian (no)
Other versions
NO20024896D0 (en
Inventor
Lorenzo Luterotti
Original Assignee
System Sensor Division Of Pitt
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by System Sensor Division Of Pitt filed Critical System Sensor Division Of Pitt
Publication of NO20024896D0 publication Critical patent/NO20024896D0/en
Publication of NO20024896L publication Critical patent/NO20024896L/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
    • G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
    • G08B17/113—Constructional details

Landscapes

  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Fire Alarms (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Eye Examination Apparatus (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Induction Machinery (AREA)
  • Camera Bodies And Camera Details Or Accessories (AREA)
  • Studio Devices (AREA)

Abstract

A fire detector, comprising a printed circuit board on which at least one optical transmitter and at least one optical receiver are surface-mounted with a method known commercially as SMD and arranged so as to avoid a line-of-sight configuration, their respective emission and reception fields intersecting each other. The board is associated with a box-like optical chamber which is composed of a fluid detection portion and a fluid circulation portion. The detection portion is arranged through a corresponding through hole formed in the printed circuit board and is provided with openings which are formed in the perimetric wall for the corresponding transmitters and receivers, whose respective emission and reception fields mutually intersect inside it. The circulation portion is arranged on the opposite side with respect to the detection portion and is formed perimetrically by a plurality of partitions which from access ducts for the fluid.
NO20024896A 2000-04-11 2002-10-10 fire alarms NO20024896L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2000PD000083A IT1315417B1 (en) 2000-04-11 2000-04-11 FIRE DETECTOR STRUCTURE
PCT/IB2001/000591 WO2001078031A1 (en) 2000-04-11 2001-04-10 Fire detector

Publications (2)

Publication Number Publication Date
NO20024896D0 NO20024896D0 (en) 2002-10-10
NO20024896L true NO20024896L (en) 2002-12-03

Family

ID=11451906

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20024896A NO20024896L (en) 2000-04-11 2002-10-10 fire alarms

Country Status (14)

Country Link
EP (1) EP1272992B1 (en)
CN (1) CN100438308C (en)
AT (1) ATE249668T1 (en)
AU (1) AU2001246755A1 (en)
CA (1) CA2405713A1 (en)
CZ (1) CZ20023374A3 (en)
DE (1) DE60100756T2 (en)
DK (1) DK1272992T3 (en)
ES (1) ES2206415T3 (en)
IT (1) IT1315417B1 (en)
NO (1) NO20024896L (en)
PT (1) PT1272992E (en)
RU (1) RU2002129506A (en)
WO (1) WO2001078031A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2404731B (en) * 2003-07-31 2006-08-09 Apollo Fire Detectors Ltd Smoke detector with compact light source
ATE445929T1 (en) * 2005-03-31 2009-10-15 Grundfos Management As SUBMERSIBLE ENGINE
ITTO20060676A1 (en) 2006-09-22 2008-03-23 Elkron Spa SMOKE DETECTOR
WO2008156030A1 (en) * 2007-06-18 2008-12-24 Panasonic Electric Works Co., Ltd. Smoke sensor
CN102436712B (en) * 2008-03-31 2014-10-15 能美防灾株式会社 Combination smoke and heat detector
GB201006683D0 (en) 2010-04-21 2010-06-09 Fireangel Ltd Smoke alarm
ES2769602T3 (en) 2010-09-07 2020-06-26 Utc Fire & Security Corp Detector assembly
JP5853143B2 (en) * 2011-03-11 2016-02-09 パナソニックＩｐマネジメント株式会社 Fire detector
DE102012209100A1 (en) 2012-05-30 2013-12-05 Robert Bosch Gmbh Optical fire detector for use in building, has LED and photodiode arranged on sections of printed circuit board, where sections of printed circuit board are arranged in angled position relative to surface extension of printed circuit board
CN204390398U (en) * 2014-10-14 2015-06-10 宁波尚泰电子有限公司 Smoke alarm
JP6392094B2 (en) * 2014-11-19 2018-09-19 能美防災株式会社 Photoelectric smoke detector
CN105245074A (en) * 2015-11-13 2016-01-13 乐山三缘电机有限公司 Three-phase asynchronous motor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3117475A1 (en) * 1981-05-02 1982-11-18 Robert Bosch Gmbh, 7000 Stuttgart Electrical drive device
DE8708891U1 (en) * 1987-06-26 1987-08-20 Siemens AG, 1000 Berlin und 8000 München Cuboid-shaped optical smoke detector
GB2306218B (en) * 1995-10-11 1999-06-23 Amlani Manhar Combined detector & sounder device for fire alarm system
US5751218A (en) * 1996-07-19 1998-05-12 Simplex Time Recorder Company Smoke detector housing for improved smoke collection

Also Published As

Publication number Publication date
DE60100756T2 (en) 2004-03-18
CZ20023374A3 (en) 2003-06-18
EP1272992B1 (en) 2003-09-10
CA2405713A1 (en) 2001-10-18
RU2002129506A (en) 2004-03-10
EP1272992A1 (en) 2003-01-08
AU2001246755A1 (en) 2001-10-23
DK1272992T3 (en) 2004-01-26
CN100438308C (en) 2008-11-26
IT1315417B1 (en) 2003-02-10
ES2206415T3 (en) 2004-05-16
CN1422453A (en) 2003-06-04
ITPD20000083A1 (en) 2001-10-11
ATE249668T1 (en) 2003-09-15
NO20024896D0 (en) 2002-10-10
PT1272992E (en) 2004-02-27
WO2001078031A1 (en) 2001-10-18
DE60100756D1 (en) 2003-10-16

Similar Documents

Publication Publication Date Title
NO20024896L (en) fire alarms
ES2752151T3 (en) IoT-enabled wireless one-go / all-go platform sensor network solution for connected home security systems
ES2591204T3 (en) Method, user equipment and access point for uplink power control
US8018584B1 (en) Virtual walls in infrared based RTLS systems
US9841180B1 (en) Combined type single stud illuminating building block
Delin et al. Sensor web
WO2001077828A3 (en) Incremental alarm correlation method and apparatus
CA2796976A1 (en) Smoke detector
ATE509492T1 (en) MULTI-LEVEL WIRELESS TRANSMISSION SYSTEM
US7928907B2 (en) Method for mapping machine rooms and locating machines within machine rooms
NO20034162L (en) Procedure for monitoring movements of individuals in and around buildings, rooms and the like
IT8023126A0 (en) FREEZER CABINET WITH A LARGE VOLUME FREEZER COMPARTMENT, COOLED BY NATURAL CONVECTION.
US20170094754A1 (en) System and processes for commissioning indoor industrial lighting
JP2018166047A (en) Illumination system
WO2017080765A1 (en) System and method for determining the position of a mobile warning post
US9544870B2 (en) Network node, wireless sensor network and method for facilitating positioning of a network node in a wireless sensor network
US11026068B2 (en) Wireless sensor communication system for enclosures
Hossain et al. Sensing and link model for wireless sensor network: Coverage and connectivity analysis
Matsunaga et al. Low false alarm attackers detection in RPL by considering timing inconstancy between the rank measurements
ATE470019T1 (en) SYSTEM FOR MARKING A SPECIAL TRAFFIC SITUATION AND OBJECTS
CN111077188A (en) Condensation detection device
CN212847065U (en) Smoke detection alarm
KR850005117A (en) Ray boundary
KR20160001692A (en) Antenna arrangement
US9857206B1 (en) Waterproofing device and distance sensor using the same

Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application