EP0182985A2 - Dispositif d'alarme pour appareil respiratoire - Google Patents

Dispositif d'alarme pour appareil respiratoire Download PDF

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Publication number
EP0182985A2
EP0182985A2 EP85111130A EP85111130A EP0182985A2 EP 0182985 A2 EP0182985 A2 EP 0182985A2 EP 85111130 A EP85111130 A EP 85111130A EP 85111130 A EP85111130 A EP 85111130A EP 0182985 A2 EP0182985 A2 EP 0182985A2
Authority
EP
European Patent Office
Prior art keywords
warning device
handle
sound
signal
warning
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.)
Granted
Application number
EP85111130A
Other languages
German (de)
English (en)
Other versions
EP0182985A3 (en
EP0182985B1 (fr
Inventor
Leslie F. Boord
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Draegerwerk AG and Co KGaA
Original Assignee
Draegerwerk AG and Co KGaA
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 Draegerwerk AG and Co KGaA filed Critical Draegerwerk AG and Co KGaA
Publication of EP0182985A2 publication Critical patent/EP0182985A2/fr
Publication of EP0182985A3 publication Critical patent/EP0182985A3/de
Application granted granted Critical
Publication of EP0182985B1 publication Critical patent/EP0182985B1/fr
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B9/00—Component parts for respiratory or breathing apparatus
    • A62B9/006—Indicators or warning devices, e.g. of low pressure, contamination
    • 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
    • Y10S116/00—Signals and indicators
    • Y10S116/07—Fluid actuated
    • 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
    • Y10S116/00—Signals and indicators
    • Y10S116/19—Wave generator with resonating element

Definitions

  • the invention relates to a warning device for breathing apparatus with a connection for the compressed gas supply and a signal whistle, which is arranged in a receiving part, and with a device for changing the sound signal.
  • Such a warning device has become known from DE-AS 24 56 189.
  • the change in the sound signal is achieved in that the gas supply is periodically opened and closed via a valve, so that a short sequence of whistling tones warns the wearer of the breathing apparatus when the gas supply pressure falls below a certain level.
  • the frequency of the whistle tones can be influenced in that a throttle point with a variable flow cross-section is arranged in the gas supply line assigned to the valve.
  • the frequency once set with the provided choke is not adjusted during the entire wearing time of the breathing apparatus.
  • lip or tongue pipes can be used as sound-generating signal pipes.
  • the invention has for its object to improve a warning device for respirators of the type mentioned such that the wearer of the respirator is able to use a device to check whether a perceived warning signal comes from his own device or not.
  • the device is a handle which adjusts the tone-producing area of the signal whistle.
  • FIG. 3 shows a reed pipe which has a reed 19 fastened to the pipe sleeve 1, the free resonance length of which can be changed by moving the rod 20.
  • the point of contact of the stop 23 with the tongue 19 is shifted and a correspondingly different sound signal is generated.
  • Stamp to change their resonance space. Another advantageous possibility is to adjust a stop that lies against the sound-generating tongue.
  • the sound-generating area of the signal pipe 22 consists of a pipe sleeve 1 with a flow channel 10 and lip 11, which is held in a housing 2 and is slidably guided in a receiving part 3 of a supply block 7.
  • a coil spring 4 presses the pipe sleeve 1 into an end position in which the sleeve collar 5 rests with its shoulder 6 against the housing 2.
  • the air supply duct 8 is embedded in the supply block 7. Compressed gas is guided from this channel 8 in the interior 9 when the gas pressure in the breathing apparatus falls below a predeterminable value through the flow channel 10 against the lip 11, as a result of which a signal tone is generated. If the pipe sleeve 1 is pressed in its receiving part 3 against the spring pressure from its end position into the interior 9, the gas outlet opening 18 between the lip 11 and the insert 12 is closed, so that the air passage and thus the sound generation is interrupted.

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
EP85111130A 1984-11-03 1985-09-04 Dispositif d'alarme pour appareil respiratoire Expired EP0182985B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3440215 1984-11-03
DE19843440215 DE3440215A1 (de) 1984-11-03 1984-11-03 Warnvorrichtung fuer atemschutzgeraete

Publications (3)

Publication Number Publication Date
EP0182985A2 true EP0182985A2 (fr) 1986-06-04
EP0182985A3 EP0182985A3 (en) 1986-12-30
EP0182985B1 EP0182985B1 (fr) 1988-10-12

Family

ID=6249431

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85111130A Expired EP0182985B1 (fr) 1984-11-03 1985-09-04 Dispositif d'alarme pour appareil respiratoire

Country Status (3)

Country Link
US (1) US4669415A (fr)
EP (1) EP0182985B1 (fr)
DE (2) DE3440215A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0605375A1 (fr) * 1992-12-29 1994-07-06 Interspiro Ab Dispositif avertisseur optique
EP2106825A1 (fr) * 2008-04-04 2009-10-07 MSA Auer GmbH Cagoule pour un masque de protection respiratoire

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5537998A (en) * 1987-01-14 1996-07-23 Bauman; Jack Emergency manual resuscitator with means for detecting air pressure
US5666949A (en) * 1994-10-24 1997-09-16 Minnesota Mining And Manufacturing Company Exposure indicator with continuous alarm signal indicating multiple conditions
US5659296A (en) * 1994-10-24 1997-08-19 Minnesota Mining And Manufacturing Company Exposure indicating apparatus
US6386196B1 (en) * 2000-03-13 2002-05-14 Steven E. Culton Warning device for oxygen delivery system failure
US7717294B2 (en) * 2005-06-20 2010-05-18 South-Tek Systems Beverage dispensing gas consumption detection with alarm and backup operation
US9489935B2 (en) * 2012-06-11 2016-11-08 Prometheus Medical Innovations Llc Ambient gas flow alarm
EP3360118B1 (fr) 2015-10-07 2021-03-31 Michael D. Velez Alarme d'écoulement
AU2017353301B2 (en) * 2016-11-04 2023-09-21 Ansell Limited Low-flow alarm valve
USD887549S1 (en) 2018-09-10 2020-06-16 Masino Corporation Cap for a flow alarm device
USD887548S1 (en) 2018-09-10 2020-06-16 Masimo Corporation Flow alarm device housing

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US357469A (en) * 1887-02-08 Steam fog-horn
US825610A (en) * 1905-05-22 1906-07-10 Philip S Olt Duck-call.
US1030639A (en) * 1912-05-02 1912-06-25 Josiah W Bodie Push-bar.
GB166426A (en) * 1920-05-31 1921-07-21 Kelvin Bottomley & Baird Ltd Improvements in liquid level indicators
DE397018C (de) * 1922-02-14 1924-06-13 Josef Faulhaber Zweitoeniger Rehblatter
US1811853A (en) * 1930-12-29 1931-06-30 Landman Gerard Kettle alarm
DE693685C (de) * 1935-11-19 1940-07-17 Auergesellschaft Akt Ges Warnvorrichtung fuer Sauerstoffatemschutzgeraete
DE913260C (de) * 1941-09-04 1954-06-10 Draegerwerk Ag Rueckzugssignalvorrichtung fuer Sauerstoff- und Pressluftatemschutzgeraete
US2626585A (en) * 1950-12-15 1953-01-27 Mendes Abraham Piza Pressure-type alarm device
DE1059769B (de) * 1955-05-05 1959-06-18 Auergesellschaft Ag Sauerstoff- oder Druckluftatemschutzgeraet mit einer als Pfeife ausgebildeten Rueckzugssignalvorrichtung
GB854194A (en) * 1958-05-07 1960-11-16 Siebe Gorman & Co Ltd Improvements in or relating to warning devices for giving an audible signal when thepressure in a fluid pressure line has fallen to a predetermined level
DE1899705U (de) * 1963-12-19 1964-08-27 Hermann Schmidt Buegel-bierflasche.
DE2456189C3 (de) * 1974-11-28 1979-02-22 Kurt Matter Gmbh Kg, 7521 Karlsdorf Warnvorrichtung für Atemschutzgeräte
DE2838366C3 (de) * 1978-09-02 1986-05-28 Drägerwerk AG, 2400 Lübeck Warnsignalvorrichtung für Atemschutzgeräte mit Druckgasvorrat
DE3004594C2 (de) * 1980-02-08 1982-01-14 Drägerwerk AG, 2400 Lübeck Warnsignalvorrichtung für Atemschutzgeräte
DE3209601C2 (de) * 1982-03-17 1984-11-22 Drägerwerk AG, 2400 Lübeck Druckanzeigegerät für Atemschutzgeräte
HU187896B (en) * 1983-05-05 1986-02-28 Banyaszati Aknamelyitoe Vallalat,Hu Apparatus for determining and indicating the necessary quantity of gas in order to leave a dngerous place in safety, applicable to a basic apparatus with a tank containing gas /oxigen or air/ for people working in dangerous places and with gas feeding organs, applicable preferably to fleeing apparatuses of mining industry

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0605375A1 (fr) * 1992-12-29 1994-07-06 Interspiro Ab Dispositif avertisseur optique
EP2106825A1 (fr) * 2008-04-04 2009-10-07 MSA Auer GmbH Cagoule pour un masque de protection respiratoire

Also Published As

Publication number Publication date
EP0182985A3 (en) 1986-12-30
EP0182985B1 (fr) 1988-10-12
DE3565470D1 (en) 1988-11-17
DE3440215A1 (de) 1986-05-07
US4669415A (en) 1987-06-02

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