NL6610234A - - Google Patents

Info

Publication number
NL6610234A
NL6610234A NL6610234A NL6610234A NL6610234A NL 6610234 A NL6610234 A NL 6610234A NL 6610234 A NL6610234 A NL 6610234A NL 6610234 A NL6610234 A NL 6610234A NL 6610234 A NL6610234 A NL 6610234A
Authority
NL
Netherlands
Application number
NL6610234A
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
Publication of NL6610234A publication Critical patent/NL6610234A/xx

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Forging (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
NL6610234A 1965-07-20 1966-07-20 NL6610234A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US473396A US3367165A (en) 1965-07-20 1965-07-20 Method for forming a field structure for magnetic loudspeaker

Publications (1)

Publication Number Publication Date
NL6610234A true NL6610234A (enrdf_load_stackoverflow) 1967-01-23

Family

ID=23879351

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6610234A NL6610234A (enrdf_load_stackoverflow) 1965-07-20 1966-07-20

Country Status (3)

Country Link
US (1) US3367165A (enrdf_load_stackoverflow)
GB (1) GB1146721A (enrdf_load_stackoverflow)
NL (1) NL6610234A (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3732836A (en) * 1971-09-17 1973-05-15 Gen Motors Corp Method of manufacturing drawn cup bearing races with crowned pathways
JPS5584238A (en) * 1978-12-21 1980-06-25 Sanden Corp Production of magnetic circuit part of solenoid clutch
US4452062A (en) * 1980-03-08 1984-06-05 Ishizaki Press Kogyo Co., Ltd. Method of manufacturing battery lid
US20070242849A1 (en) * 2006-04-13 2007-10-18 Galax Multimedia Co., Ltd. Loudspeaker with high power efficiency and low resonance frequency
CN104056907A (zh) * 2014-06-27 2014-09-24 梧州恒声电子科技有限公司 喇叭盆架的加工方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1142782A (en) * 1914-12-03 1915-06-08 Rockwood Sprinkler Co Set of dies.
US1427315A (en) * 1919-09-10 1922-08-29 Boston Pressed Metal Company Method of forming an article of sheet metal
US1397360A (en) * 1919-11-22 1921-11-15 Rockwood Sprinkler Co Method of making handles and the like
US2722047A (en) * 1951-05-05 1955-11-01 Walter F Cousino Production of precision bushings
US3191421A (en) * 1961-03-30 1965-06-29 Aldo L Coen Method of making loudspeaker field structure
US3138864A (en) * 1961-05-25 1964-06-30 Aldo L Coen Method of working metal

Also Published As

Publication number Publication date
US3367165A (en) 1968-02-06
GB1146721A (en) 1969-03-26

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