BR7708177A - Sistema de alarme detector de fumaca e calor de alto nivel de saida - Google Patents

Sistema de alarme detector de fumaca e calor de alto nivel de saida

Info

Publication number
BR7708177A
BR7708177A BR7708177A BR7708177A BR7708177A BR 7708177 A BR7708177 A BR 7708177A BR 7708177 A BR7708177 A BR 7708177A BR 7708177 A BR7708177 A BR 7708177A BR 7708177 A BR7708177 A BR 7708177A
Authority
BR
Brazil
Prior art keywords
high level
alarm system
level output
smoke detector
output heat
Prior art date
Application number
BR7708177A
Other languages
English (en)
Inventor
L Sweany
M Burk
Original Assignee
Mallory & Co Inc P R
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 Mallory & Co Inc P R filed Critical Mallory & Co Inc P R
Publication of BR7708177A publication Critical patent/BR7708177A/pt

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
    • G08B17/11—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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S331/00—Oscillators
    • Y10S331/03—Logic gate active element oscillator

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Emergency Alarm Devices (AREA)
  • Alarm Systems (AREA)
  • Fire Alarms (AREA)
BR7708177A 1976-12-09 1977-12-08 Sistema de alarme detector de fumaca e calor de alto nivel de saida BR7708177A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/749,024 US4096473A (en) 1976-12-09 1976-12-09 High output smoke and heat detector alarm system utilizing a piezoelectric transducer and a voltage doubling means

Publications (1)

Publication Number Publication Date
BR7708177A true BR7708177A (pt) 1978-07-25

Family

ID=25011910

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7708177A BR7708177A (pt) 1976-12-09 1977-12-08 Sistema de alarme detector de fumaca e calor de alto nivel de saida

Country Status (8)

Country Link
US (1) US4096473A (pt)
JP (1) JPS5372500A (pt)
AU (1) AU506499B2 (pt)
BR (1) BR7708177A (pt)
CA (1) CA1090483A (pt)
DE (1) DE2754957A1 (pt)
GB (1) GB1559246A (pt)
MX (1) MX3651E (pt)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5831275Y2 (ja) * 1978-08-26 1983-07-11 ホーチキ株式会社 イオン化式煙感知器
US4282520A (en) * 1978-10-25 1981-08-04 Shipp John I Piezoelectric horn and a smoke detector containing same
US4287516A (en) * 1979-08-23 1981-09-01 Emerson Electric Co. Minimal energy dissipating detector
US4609914A (en) * 1984-04-19 1986-09-02 Ultima Electronics, Ltd. Voltage monitor and alarm for power line
US5019805A (en) * 1989-02-03 1991-05-28 Flash-Alert Inc. Smoke detector with strobed visual alarm and remote alarm coupling
US5990784A (en) * 1996-12-17 1999-11-23 Yosemite Investment, Inc. Schmitt trigger loud alarm with feedback
EP1145207A4 (en) * 1998-12-23 2004-08-18 Univ Johns Hopkins THERMAL IONIZATION DETECTOR
US6617967B2 (en) 2001-01-10 2003-09-09 Mallory Sonalert Products, Inc. Piezoelectric siren driver circuit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3805259A (en) * 1970-12-29 1974-04-16 Inoue Japax Res Smoke and fire alarm system
US3774186A (en) * 1972-03-15 1973-11-20 El Sig Lab Inc Smoke detector failure alarm
NL7313897A (nl) * 1973-10-10 1975-04-14 Visser Robertus Gerardus Gasindicator.
US3934145A (en) * 1973-10-25 1976-01-20 Emhart Corporation Ionization smoke detector and alarm system

Also Published As

Publication number Publication date
DE2754957A1 (de) 1978-08-03
MX3651E (es) 1981-04-13
AU506499B2 (en) 1980-01-03
CA1090483A (en) 1980-11-25
GB1559246A (en) 1980-01-16
JPS5372500A (en) 1978-06-27
US4096473A (en) 1978-06-20
AU3121977A (en) 1979-06-14

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