BE547497A - - Google Patents

Info

Publication number
BE547497A
BE547497A BE547497DA BE547497A BE 547497 A BE547497 A BE 547497A BE 547497D A BE547497D A BE 547497DA BE 547497 A BE547497 A BE 547497A
Authority
BE
Belgium
Application number
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.)
Publication of BE547497A publication Critical patent/BE547497A/xx

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
    • H04R21/00—Variable-resistance transducers
    • H04R21/02—Microphones
    • H04R21/021—Microphones with granular resistance material
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Telephone Set Structure (AREA)
BE547497D 1955-06-02 BE547497A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US512672A US2967914A (en) 1955-06-02 1955-06-02 Telephone transmitter

Publications (1)

Publication Number Publication Date
BE547497A true BE547497A (enrdf_load_html_response)

Family

ID=24040062

Family Applications (1)

Application Number Title Priority Date Filing Date
BE547497D BE547497A (enrdf_load_html_response) 1955-06-02

Country Status (2)

Country Link
US (1) US2967914A (enrdf_load_html_response)
BE (1) BE547497A (enrdf_load_html_response)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7521847B2 (en) * 2005-03-21 2009-04-21 Artificial Muscle, Inc. High-performance electroactive polymer transducers
US8054566B2 (en) * 2005-03-21 2011-11-08 Bayer Materialscience Ag Optical lens displacement systems
US7521840B2 (en) * 2005-03-21 2009-04-21 Artificial Muscle, Inc. High-performance electroactive polymer transducers
US7595580B2 (en) * 2005-03-21 2009-09-29 Artificial Muscle, Inc. Electroactive polymer actuated devices
US7492076B2 (en) * 2006-12-29 2009-02-17 Artificial Muscle, Inc. Electroactive polymer transducers biased for increased output
US7952261B2 (en) 2007-06-29 2011-05-31 Bayer Materialscience Ag Electroactive polymer transducers for sensory feedback applications
EP2239793A1 (de) 2009-04-11 2010-10-13 Bayer MaterialScience AG Elektrisch schaltbarer Polymerfilmaufbau und dessen Verwendung
EP2681748B1 (en) 2011-03-01 2016-06-08 Parker-Hannifin Corp Automated manufacturing processes for producing deformable polymer devices and films
KR20140019801A (ko) 2011-03-22 2014-02-17 바이엘 인텔렉쳐 프로퍼티 게엠베하 전기활성 중합체 작동기 렌티큘라 시스템
US9876160B2 (en) 2012-03-21 2018-01-23 Parker-Hannifin Corporation Roll-to-roll manufacturing processes for producing self-healing electroactive polymer devices
WO2013192143A1 (en) 2012-06-18 2013-12-27 Bayer Intellectual Property Gmbh Stretch frame for stretching process
US9590193B2 (en) 2012-10-24 2017-03-07 Parker-Hannifin Corporation Polymer diode

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB368344A (en) * 1930-12-04 1932-03-04 Harold Bertram Mead Improvements relating to conical diaphragms for sound reproducing and recording apparatus
US2149628A (en) * 1935-09-16 1939-03-07 Associated Electric Lab Inc Telephone transmitter
US2225488A (en) * 1938-06-18 1940-12-17 Bell Telephone Labor Inc Impulse translating apparatus
US2331525A (en) * 1941-11-06 1943-10-12 Walker Electrical Company Automatic outlet box making machine
US2585052A (en) * 1948-04-23 1952-02-12 Int Standard Electric Corp Granule type acoustic transducer

Also Published As

Publication number Publication date
US2967914A (en) 1961-01-10

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