GB253486A - - Google Patents

Info

Publication number
GB253486A
GB253486A GB9727/26A GB972726A GB253486A GB 253486 A GB253486 A GB 253486A GB 9727/26 A GB9727/26 A GB 9727/26A GB 972726 A GB972726 A GB 972726A GB 253486 A GB253486 A GB 253486A
Authority
GB
United Kingdom
Prior art keywords
rim
cone
diaphragm
hopkins
radial
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
GB9727/26A
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 GB253486A publication Critical patent/GB253486A/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
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
GB9727/26A 1925-06-11 1926-04-13 Expired GB253486A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US36563A US1630011A (en) 1925-06-11 1925-06-11 Loud speaker

Publications (1)

Publication Number Publication Date
GB253486A true GB253486A (de) 1927-07-13

Family

ID=21889291

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9727/26A Expired GB253486A (de) 1925-06-11 1926-04-13

Country Status (6)

Country Link
US (1) US1630011A (de)
BE (1) BE334368A (de)
DE (1) DE509370C (de)
FR (1) FR616419A (de)
GB (1) GB253486A (de)
NL (1) NL20912C (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6510919B1 (en) 2000-08-30 2003-01-28 Awi Licensing Company Facing system for a flat panel radiator

Also Published As

Publication number Publication date
DE509370C (de) 1930-10-08
FR616419A (fr) 1927-02-02
NL20912C (de)
BE334368A (de)
US1630011A (en) 1927-05-24

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