DE931055C - Akustischer Widerstand aus aufgewickeltem, bandfoermigem Werkstoff - Google Patents

Akustischer Widerstand aus aufgewickeltem, bandfoermigem Werkstoff

Info

Publication number
DE931055C
DE931055C DEN6984A DEN0006984A DE931055C DE 931055 C DE931055 C DE 931055C DE N6984 A DEN6984 A DE N6984A DE N0006984 A DEN0006984 A DE N0006984A DE 931055 C DE931055 C DE 931055C
Authority
DE
Germany
Prior art keywords
tape
wound
acoustic
acoustic resistance
shaped material
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
DEN6984A
Other languages
German (de)
English (en)
Inventor
Jacob Izaak De Haan
Gerrit Schenkel
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of DE931055C publication Critical patent/DE931055C/de
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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Transducers For Ultrasonic Waves (AREA)
DEN6984A 1952-04-03 1953-04-02 Akustischer Widerstand aus aufgewickeltem, bandfoermigem Werkstoff Expired DE931055C (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL726247X 1952-04-03

Publications (1)

Publication Number Publication Date
DE931055C true DE931055C (de) 1955-08-01

Family

ID=19817821

Family Applications (1)

Application Number Title Priority Date Filing Date
DEN6984A Expired DE931055C (de) 1952-04-03 1953-04-02 Akustischer Widerstand aus aufgewickeltem, bandfoermigem Werkstoff

Country Status (5)

Country Link
US (1) US2778440A (he)
BE (1) BE518909A (he)
DE (1) DE931055C (he)
GB (1) GB726247A (he)
NL (1) NL83991C (he)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1488565A (en) * 1919-07-11 1924-04-01 George W Stewart Porous damper for acoustical instruments
US1975637A (en) * 1930-05-30 1934-10-02 Paraffine Co Inc Acoustical material
US1954966A (en) * 1931-01-31 1934-04-17 Bell Telephone Labor Inc Sound translating device
US2065751A (en) * 1935-12-31 1936-12-29 Rca Corp Acoustic resistance device
US2126254A (en) * 1936-12-23 1938-08-09 Ernest E Gowell Rug and method of making the same
US2656585A (en) * 1948-04-13 1953-10-27 Neisler Mills Inc Plied yarn and plied yarn fabric and method of making same

Also Published As

Publication number Publication date
GB726247A (en) 1955-03-16
BE518909A (he)
NL83991C (he)
US2778440A (en) 1957-01-22

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