DE2400974A1 - - Google Patents

Info

Publication number
DE2400974A1
DE2400974A1 DE19742400974 DE2400974A DE2400974A1 DE 2400974 A1 DE2400974 A1 DE 2400974A1 DE 19742400974 DE19742400974 DE 19742400974 DE 2400974 A DE2400974 A DE 2400974A DE 2400974 A1 DE2400974 A1 DE 2400974A1
Authority
DE
Germany
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
DE19742400974
Other languages
German (de)
Other versions
DE2400974C2 (forum.php
DE2400974B1 (en
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 filed Critical
Priority to DE2400974A priority Critical patent/DE2400974B1/de
Publication of DE2400974A1 publication Critical patent/DE2400974A1/de
Publication of DE2400974B1 publication Critical patent/DE2400974B1/de
Application granted granted Critical
Publication of DE2400974C2 publication Critical patent/DE2400974C2/de
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G10K9/13—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using electromagnetic driving means
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K13/00—Cones, diaphragms, or the like, for emitting or receiving sound in general

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electromagnetism (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
DE2400974A 1974-01-10 1974-01-10 Mfr. of electroacoustic driver unit - has coil welded by current pulse united by injection moulding to coil body and diaphragm Granted DE2400974B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2400974A DE2400974B1 (en) 1974-01-10 1974-01-10 Mfr. of electroacoustic driver unit - has coil welded by current pulse united by injection moulding to coil body and diaphragm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2400974A DE2400974B1 (en) 1974-01-10 1974-01-10 Mfr. of electroacoustic driver unit - has coil welded by current pulse united by injection moulding to coil body and diaphragm

Publications (3)

Publication Number Publication Date
DE2400974A1 true DE2400974A1 (forum.php) 1975-06-19
DE2400974B1 DE2400974B1 (en) 1975-06-19
DE2400974C2 DE2400974C2 (forum.php) 1976-02-05

Family

ID=5904455

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2400974A Granted DE2400974B1 (en) 1974-01-10 1974-01-10 Mfr. of electroacoustic driver unit - has coil welded by current pulse united by injection moulding to coil body and diaphragm

Country Status (1)

Country Link
DE (1) DE2400974B1 (forum.php)

Also Published As

Publication number Publication date
DE2400974B1 (en) 1975-06-19

Similar Documents

Publication Publication Date Title
AU495930B2 (forum.php)
AU495821B2 (forum.php)
AU495844B2 (forum.php)
AU8191875A (forum.php)
AU7138274A (forum.php)
AU6717074A (forum.php)
AU6599874A (forum.php)
BG19727A1 (forum.php)
BG19890A1 (forum.php)
AU481597A (forum.php)
AU481915A (forum.php)
AU481953A (forum.php)
AU480758A (forum.php)
AU480399A (forum.php)
AU480187A (forum.php)
AU480148A (forum.php)
AU480070A (forum.php)
AU480049A (forum.php)
AU479870A (forum.php)
BE836964A (forum.php)
BG19628A1 (forum.php)
BG19673A1 (forum.php)
BG19712A1 (forum.php)
BG19725A1 (forum.php)
AU479624A (forum.php)

Legal Events

Date Code Title Description
E77 Valid patent as to the heymanns-index 1977
EGA New person/name/address of the applicant
8339 Ceased/non-payment of the annual fee