DE960998C - Carbon microphone with movable immersion electrode - Google Patents

Carbon microphone with movable immersion electrode

Info

Publication number
DE960998C
DE960998C DEM22090A DEM0022090A DE960998C DE 960998 C DE960998 C DE 960998C DE M22090 A DEM22090 A DE M22090A DE M0022090 A DEM0022090 A DE M0022090A DE 960998 C DE960998 C DE 960998C
Authority
DE
Germany
Prior art keywords
carbon
immersion electrode
carbon microphone
electrode
movable
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
DEM22090A
Other languages
German (de)
Inventor
Dipl-Ing Guenther Neumann
Guenther Schwanck
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.)
Standard Elektrik AG
Original Assignee
Standard Elektrik AG
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 Standard Elektrik AG filed Critical Standard Elektrik AG
Priority to DEM22090A priority Critical patent/DE960998C/en
Application granted granted Critical
Publication of DE960998C publication Critical patent/DE960998C/en
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
    • H04R21/00—Variable-resistance transducers
    • H04R21/02—Microphones
    • H04R21/023—Microphones with more than one granular chamber

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)

Description

In Betracht gezogene Druckschriften:
Schweizerische Patentschrift Nr. 220 358;
britische Patentschriften Nr. 611 414, 670586; USA.-Patentschrift Nr. 2 042 821.Considered publications:
Swiss Patent No. 220 358;
British Patent Nos. 611,414, 670586; U.S. Patent No. 2,042,821.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

©509578/78 10.55 (609 845 3. 57)© 509578/78 10.55 (609 845 3. 57)

Claims (3)

PATENTANSPRÜCHE:PATENT CLAIMS: i. Kohlemikrofon mit beweglicher Tauchelektrode, insbesondere für Fernsprecher, dadurch gekennzeichnet, daß die Kohlekammer durch eine oder mehrere fest angeordnete konzentrische Trennwände (3), welche die Tauchelektrode (ia) umschließen und die Form von Zylindermänteln besitzen, deren Achse mit der Bewegungsrichtung der Tauchelektrode zusammenfällt, in zwei oder mehrere Räume unterteilt wird, die alle miteinander in Verbindung stehen.i. Carbon microphone with movable immersion electrode, especially for telephones, characterized in that the carbon chamber is formed by one or more fixed concentric partition walls (3) which enclose the immersion electrode (i a ) and are in the form of cylinder jackets, the axis of which coincides with the direction of movement of the immersion electrode , divided into two or more rooms, all of which are connected to each other. 2. Kohlemikrofon nach Anspruch 1, dadurch gekennzeichnet, daß die konzentrischen Trennwände (3) von der Membranseite her in die Kohlekammer ragen und mit ihrer Stirnseite bis kurz vor die feststehende Gegenelektrode (2) reichen.2. carbon microphone according to claim 1, characterized in that the concentric partitions (3) protrude from the membrane side into the carbon chamber and with its end face reach just before the fixed counter electrode (2). 3. Kohlemikrofon nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Trennwände (3) mit der äußeren Kammerwand zusammen ein Bauteil ergeben, das gleichzeitig als Halterung für die Abdichtscheiben (4) dient.3. carbon microphone according to claim 1 or 2, characterized in that the partitions (3) together with the outer chamber wall result in a component that doubles as a bracket serves for the sealing washers (4).
DEM22090A 1954-02-26 1954-02-26 Carbon microphone with movable immersion electrode Expired DE960998C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM22090A DE960998C (en) 1954-02-26 1954-02-26 Carbon microphone with movable immersion electrode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM22090A DE960998C (en) 1954-02-26 1954-02-26 Carbon microphone with movable immersion electrode

Publications (1)

Publication Number Publication Date
DE960998C true DE960998C (en) 1957-03-28

Family

ID=7298673

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM22090A Expired DE960998C (en) 1954-02-26 1954-02-26 Carbon microphone with movable immersion electrode

Country Status (1)

Country Link
DE (1) DE960998C (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2042821A (en) * 1933-04-20 1936-06-02 Bell Telephone Labor Inc Telephone transmitter
CH220358A (en) * 1940-10-26 1942-03-31 Fides Gmbh Capsule microphone.
GB611414A (en) * 1945-11-06 1948-10-29 Edmund Ramsey Wigan Improvements in or relating to microphones
GB670586A (en) * 1948-04-23 1952-04-23 Standard Telephones Cables Ltd Improvements in or relating to granule-type electro-acoustic transducers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2042821A (en) * 1933-04-20 1936-06-02 Bell Telephone Labor Inc Telephone transmitter
CH220358A (en) * 1940-10-26 1942-03-31 Fides Gmbh Capsule microphone.
GB611414A (en) * 1945-11-06 1948-10-29 Edmund Ramsey Wigan Improvements in or relating to microphones
GB670586A (en) * 1948-04-23 1952-04-23 Standard Telephones Cables Ltd Improvements in or relating to granule-type electro-acoustic transducers

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