GB603017A - Improvements in or relating to compound diaphragms - Google Patents

Improvements in or relating to compound diaphragms

Info

Publication number
GB603017A
GB603017A GB3074445A GB3074445A GB603017A GB 603017 A GB603017 A GB 603017A GB 3074445 A GB3074445 A GB 3074445A GB 3074445 A GB3074445 A GB 3074445A GB 603017 A GB603017 A GB 603017A
Authority
GB
United Kingdom
Prior art keywords
diaphragms
relating
compound
compound diaphragms
diaphragm
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
GB3074445A
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.)
HETTY DENT
Original Assignee
HETTY DENT
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 HETTY DENT filed Critical HETTY DENT
Priority to GB3074445A priority Critical patent/GB603017A/en
Publication of GB603017A publication Critical patent/GB603017A/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
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • H04R7/08—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers separated by air or other fluid

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Magnetic Treatment Devices (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

603,017. Diaphragms. DENT, H., and WOLFF, J. Nov. 16, 1945, No. 30744. [Class 40 (iv)] A compound diaphragm consisting of two or more diaphragms 1, 2, all of the same diameter, at least one of which is of magnetic material, has the convex faces of two adjacent diaphragms next to one another. The diaphragms may be mounted in a frame 3 or clamped at their periphery between the casing of the instrument of which the diaphragm forms part and the inside of its cover, and may, if desired, be separated by oil films.
GB3074445A 1945-11-16 1945-11-16 Improvements in or relating to compound diaphragms Expired GB603017A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3074445A GB603017A (en) 1945-11-16 1945-11-16 Improvements in or relating to compound diaphragms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3074445A GB603017A (en) 1945-11-16 1945-11-16 Improvements in or relating to compound diaphragms

Publications (1)

Publication Number Publication Date
GB603017A true GB603017A (en) 1948-06-08

Family

ID=10312456

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3074445A Expired GB603017A (en) 1945-11-16 1945-11-16 Improvements in or relating to compound diaphragms

Country Status (1)

Country Link
GB (1) GB603017A (en)

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