FR803755A - Improvements to loudspeakers and analog devices - Google Patents

Improvements to loudspeakers and analog devices

Info

Publication number
FR803755A
FR803755A FR803755DA FR803755A FR 803755 A FR803755 A FR 803755A FR 803755D A FR803755D A FR 803755DA FR 803755 A FR803755 A FR 803755A
Authority
FR
France
Prior art keywords
loudspeakers
analog devices
analog
devices
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
Other languages
French (fr)
Inventor
Walker
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
Application granted granted Critical
Publication of FR803755A publication Critical patent/FR803755A/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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49005—Acoustic transducer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49075—Electromagnet, transformer or inductor including permanent magnet or core
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49938—Radially expanding part in cavity, aperture, or hollow body

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
FR803755D 1936-02-01 1936-03-20 Improvements to loudspeakers and analog devices Expired FR803755A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US61883A US2174355A (en) 1936-02-01 1936-02-01 Loudspeaker and method of making same

Publications (1)

Publication Number Publication Date
FR803755A true FR803755A (en) 1936-10-08

Family

ID=22038753

Family Applications (1)

Application Number Title Priority Date Filing Date
FR803755D Expired FR803755A (en) 1936-02-01 1936-03-20 Improvements to loudspeakers and analog devices

Country Status (3)

Country Link
US (1) US2174355A (en)
FR (1) FR803755A (en)
GB (1) GB475839A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2524780A (en) * 1945-07-07 1950-10-10 Rola Company Inc Pole piece centering arrangement for permanent magnet electrodynamic loudspeakers
US2501031A (en) * 1945-11-30 1950-03-21 Rca Corp Magnetic field structure for dynamic loud-speakers and the like
GB625591A (en) * 1947-03-04 1949-06-30 Paul Gustavus Adolphus Helmuth Improvements in magnets
US2666980A (en) * 1947-04-02 1954-01-26 Rola Company Inc Method of making loud-speakers
US2524836A (en) * 1947-04-02 1950-10-10 Rola Company Inc Permanent magnet electrodynamic loud-speaker
US2551949A (en) * 1947-04-19 1951-05-08 Robert C Hunter Loud-speaker
GB686743A (en) * 1947-08-27 1953-01-28 Magnavox Australia Pty Ltd Improvements in loud speakers
US2522859A (en) * 1948-01-30 1950-09-19 Gordon S Carbonneau Electrodynamic loudspeaker and mounting therefor
US2838607A (en) * 1951-04-27 1958-06-10 Rca Corp Combination chassis and loudspeaker
DE1036923B (en) * 1954-06-11 1958-08-21 Isophon Werke Ges Mit Beschrae Attachment of the membrane basket for conical speakers
US3092694A (en) * 1959-02-16 1963-06-04 Rca Corp Loudspeaker
US3222753A (en) * 1959-05-18 1965-12-14 Heppner Mfg Co Speaker magnet structure and method of forming the same
US3128355A (en) * 1959-10-19 1964-04-07 Western Electric Co Plastic relay structure and method of making
US3310639A (en) * 1964-01-23 1967-03-21 York Tool And Mfg Co Loud speaker magnetic assembly and pot
US5345209A (en) * 1992-07-30 1994-09-06 Tdk Corporation Adjustment system for a coil device

Also Published As

Publication number Publication date
US2174355A (en) 1939-09-26
GB475839A (en) 1937-11-26

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