SE8502426D0 - DEVICE FOR VIBRATION PRODUCERS FOR SPRING SPRINGS - Google Patents

DEVICE FOR VIBRATION PRODUCERS FOR SPRING SPRINGS

Info

Publication number
SE8502426D0
SE8502426D0 SE8502426A SE8502426A SE8502426D0 SE 8502426 D0 SE8502426 D0 SE 8502426D0 SE 8502426 A SE8502426 A SE 8502426A SE 8502426 A SE8502426 A SE 8502426A SE 8502426 D0 SE8502426 D0 SE 8502426D0
Authority
SE
Sweden
Prior art keywords
damping layer
spring
area
spring springs
layer
Prior art date
Application number
SE8502426A
Other languages
Swedish (sv)
Other versions
SE8502426L (en
SE447948B (en
Inventor
Bo Hakansson
Peder Carlsson
Original Assignee
Bo Hakansson
Peder Carlsson
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 Bo Hakansson, Peder Carlsson filed Critical Bo Hakansson
Priority to SE8502426A priority Critical patent/SE447948B/en
Publication of SE8502426D0 publication Critical patent/SE8502426D0/en
Publication of SE8502426L publication Critical patent/SE8502426L/xx
Publication of SE447948B publication Critical patent/SE447948B/en

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
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/45—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback
    • H04R25/456—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback mechanically
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/67—Implantable hearing aids or parts thereof not covered by H04R25/606

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Springs (AREA)

Abstract

A damping layer, in the form of a pulp (11), is applied to a spring (2) along a large part of the surface on one of its sides. The spring is of the so-called membrane type, which has a number of hollow passages through it. The damping layer (11) is applied to it except in the area where the spaced exist. Alternatively, the damping layer may be applied so that it covers the area where the hollow spaces are located. The surface of the spring covered by the damping layer is turned towards the output source for vibrations. By varying the thickness of the layer, the integral resonance is damped effectively as far as the vibrator is concerned.
SE8502426A 1985-05-15 1985-05-15 Vibrator for hearing aid SE447948B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8502426A SE447948B (en) 1985-05-15 1985-05-15 Vibrator for hearing aid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8502426A SE447948B (en) 1985-05-15 1985-05-15 Vibrator for hearing aid

Publications (3)

Publication Number Publication Date
SE8502426D0 true SE8502426D0 (en) 1985-05-15
SE8502426L SE8502426L (en) 1986-11-16
SE447948B SE447948B (en) 1986-12-22

Family

ID=20360244

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8502426A SE447948B (en) 1985-05-15 1985-05-15 Vibrator for hearing aid

Country Status (1)

Country Link
SE (1) SE447948B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE514929C2 (en) 2000-06-02 2001-05-21 P & B Res Ab Vibrator for leg anchored and leg conduit hearing aids
SE528279C2 (en) 2005-02-21 2006-10-10 Entific Medical Systems Ab Vibrator for bone conductive hearing aid
AT516871B1 (en) * 2015-03-05 2018-03-15 Bhm Tech Produktionsgesellschaft M B H Electromagnetic transducer for a bone conduction listener
AT517569A1 (en) * 2015-07-30 2017-02-15 Bhm-Tech Produktionsgesellschaft M B H Device for storing a bone conduction tube

Also Published As

Publication number Publication date
SE8502426L (en) 1986-11-16
SE447948B (en) 1986-12-22

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