DE923354C - UEberholungssignalanlage - Google Patents

UEberholungssignalanlage

Info

Publication number
DE923354C
DE923354C DEP5919A DEP0005919A DE923354C DE 923354 C DE923354 C DE 923354C DE P5919 A DEP5919 A DE P5919A DE P0005919 A DEP0005919 A DE P0005919A DE 923354 C DE923354 C DE 923354C
Authority
DE
Germany
Prior art keywords
crystal system
membrane
crystal
housing
resonance
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
Application number
DEP5919A
Other languages
German (de)
English (en)
Inventor
Helmut Mosaner
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.)
PYCHLAU KG DR
Original Assignee
PYCHLAU KG DR
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
Priority to IT500018D priority Critical patent/IT500018A/it
Priority to DEP4923A priority patent/DE921618C/de
Application filed by PYCHLAU KG DR filed Critical PYCHLAU KG DR
Priority to DEP5919A priority patent/DE923354C/de
Priority to FR1047370D priority patent/FR1047370A/fr
Priority to GB622/52A priority patent/GB705450A/en
Priority to FR64910D priority patent/FR64910E/fr
Priority to GB18697/52A priority patent/GB717090A/en
Application granted granted Critical
Publication of DE923354C publication Critical patent/DE923354C/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/10—Resonant transducers, i.e. adapted to produce maximum output at a predetermined frequency
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
    • G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor
    • H04R1/083—Special constructions of mouthpieces
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor
    • H04R1/083—Special constructions of mouthpieces
    • H04R1/086—Protective screens, e.g. all weather or wind screens

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Exhaust Silencers (AREA)
DEP5919A 1951-01-11 1951-07-24 UEberholungssignalanlage Expired DE923354C (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
IT500018D IT500018A (enrdf_load_stackoverflow) 1951-07-24
DEP4923A DE921618C (de) 1951-01-11 1951-01-11 UEberholungssignalempfangsanlage
DEP5919A DE923354C (de) 1951-07-24 1951-07-24 UEberholungssignalanlage
FR1047370D FR1047370A (fr) 1951-07-24 1951-12-28 Perfectionnements apportés aux dispositifs de signalisation de doublement
GB622/52A GB705450A (en) 1951-07-24 1952-01-08 Overtaking signal installation for vehicles
FR64910D FR64910E (fr) 1951-07-24 1952-07-08 Perfectionnements apportés aux dispositifs de signalisation de doublement
GB18697/52A GB717090A (en) 1951-07-24 1952-07-23 Overtaking signal installation for vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP5919A DE923354C (de) 1951-07-24 1951-07-24 UEberholungssignalanlage

Publications (1)

Publication Number Publication Date
DE923354C true DE923354C (de) 1955-02-10

Family

ID=6626604

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP5919A Expired DE923354C (de) 1951-01-11 1951-07-24 UEberholungssignalanlage

Country Status (4)

Country Link
DE (1) DE923354C (enrdf_load_stackoverflow)
FR (2) FR1047370A (enrdf_load_stackoverflow)
GB (2) GB705450A (enrdf_load_stackoverflow)
IT (1) IT500018A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1112927B (de) * 1956-05-08 1961-08-17 Tele F Lux Soc A R L Verfahren zur elektrischen UEbertragung von akustischen UEberholsignalen von Fahrzeugen
US3670689A (en) * 1970-03-20 1972-06-20 Falcon Safety Prod Tilt-operated hand held gas powered acoustic device

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2931020A (en) * 1955-07-11 1960-03-29 Thomas J Bender Secondary alarm system
DE10003689C1 (de) * 2000-01-28 2001-05-23 Hella Kg Hueck & Co Schaltungsanordnung zur Leistungsanpassung einer Verstärkeranlage zur Erzielung eines annähernd konstanten Schalldruckpegels des Sondersignals für vorfahrtberechtigte Wegebenutzer
DE102017220474A1 (de) * 2017-11-16 2019-05-16 Robert Bosch Gmbh Vorrichtung zur luftschallakustischen Sensierung der Umgebung eines Fahrzeugs, Fahrzeug
EP3907502B1 (en) * 2020-05-08 2025-07-02 ABB Schweiz AG Sensing arrangement
CN115255650B (zh) * 2022-08-12 2024-12-24 国网江苏省电力有限公司泰州供电分公司 一种用于声纹监测的聚音装置及制备方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1112927B (de) * 1956-05-08 1961-08-17 Tele F Lux Soc A R L Verfahren zur elektrischen UEbertragung von akustischen UEberholsignalen von Fahrzeugen
US3670689A (en) * 1970-03-20 1972-06-20 Falcon Safety Prod Tilt-operated hand held gas powered acoustic device

Also Published As

Publication number Publication date
GB717090A (en) 1954-10-20
GB705450A (en) 1954-03-10
FR64910E (fr) 1955-12-14
IT500018A (enrdf_load_stackoverflow)
FR1047370A (fr) 1953-12-14

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