GB263481A - Loud speakers - Google Patents

Loud speakers

Info

Publication number
GB263481A
GB263481A GB9736/26A GB973626A GB263481A GB 263481 A GB263481 A GB 263481A GB 9736/26 A GB9736/26 A GB 9736/26A GB 973626 A GB973626 A GB 973626A GB 263481 A GB263481 A GB 263481A
Authority
GB
United Kingdom
Prior art keywords
board
diaphragm
sound
hopkins
vibrations
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
GB9736/26A
Other languages
English (en)
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.)
HOPKINS CORP
Original Assignee
HOPKINS CORP
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 HOPKINS CORP filed Critical HOPKINS CORP
Publication of GB263481A publication Critical patent/GB263481A/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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
GB9736/26A 1925-12-22 1926-04-13 Loud speakers Expired GB263481A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US77033A US1763048A (en) 1925-12-22 1925-12-22 Loud-speaker

Publications (1)

Publication Number Publication Date
GB263481A true GB263481A (en) 1927-09-13

Family

ID=22135690

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9736/26A Expired GB263481A (en) 1925-12-22 1926-04-13 Loud speakers

Country Status (4)

Country Link
US (1) US1763048A (cs)
FR (1) FR616504A (cs)
GB (1) GB263481A (cs)
NL (1) NL19874C (cs)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10484768B2 (en) 2017-05-23 2019-11-19 Eric James Lundgard Speaker system

Also Published As

Publication number Publication date
US1763048A (en) 1930-06-10
FR616504A (fr) 1927-02-03
NL19874C (cs)

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