GB1354055A - Diaphragm ear valve - Google Patents

Diaphragm ear valve

Info

Publication number
GB1354055A
GB1354055A GB1354055DA GB1354055A GB 1354055 A GB1354055 A GB 1354055A GB 1354055D A GB1354055D A GB 1354055DA GB 1354055 A GB1354055 A GB 1354055A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
ear
fitting
sealing
retainer plates
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
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.)
Sigma Sales Corp
Original Assignee
Sigma Sales Corp
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 Sigma Sales Corp filed Critical Sigma Sales Corp
Publication of GB1354055A publication Critical patent/GB1354055A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
    • A61F11/06—Protective devices for the ears
    • A61F11/08—Protective devices for the ears internal, e.g. earplugs

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Acoustics & Sound (AREA)
  • Biophysics (AREA)
  • Otolaryngology (AREA)
  • Psychology (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Headphones And Earphones (AREA)

Abstract

1354055 Ear protectors SIGMA SALES CORP 4 July 1972 31183/72 Heading A5R An ear-protecting device for location in the ear canal comprises a resilient diaphragm 36 retained between two spaced surfaces such that sound waves below a threshold pass through the device by a sinuous path via apertures 44a, 44b in said surfaces and through an aperture 38 in the diaphragm into the ear, percussive or repercussive sound waves above the threshold flexing the diaphragm to close off the sound path through the device by the sealing of a thickened part 40 of the diaphragm against one or the other of said surfaces. The diaphragm may have a sealing bead 40 around a central aperture 38 for sealing against spacedapart flat surfaces of two retainer plates 34a, 34b or against recesses therein. The plates and diaphragm may be enclosed in a housing 20 screwed onto an adaptor 52 attaching the device to a resilient fitting 12 for insertion in the external auditory meatus of the ear. In a second embodiment, Figs. 6-9 (not shown), the diaphragm and retainer plates are enclosed in a housing (70) incorporated in an ear fitting (12'), similar to fitting 12, and the diaphragm (36') has a thickened solid central portion (92) with opposed concave surfaces shaped to seal against annular parts of the retainer plates around axial through-holes therein, the diaphragm having apertures (98) therethrough located between the central portion (92) and the diaphragm periphery.
GB1354055D 1972-07-04 1972-07-04 Diaphragm ear valve Expired GB1354055A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3118372 1972-07-04

Publications (1)

Publication Number Publication Date
GB1354055A true GB1354055A (en) 1974-06-05

Family

ID=10319244

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1354055D Expired GB1354055A (en) 1972-07-04 1972-07-04 Diaphragm ear valve

Country Status (1)

Country Link
GB (1) GB1354055A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001076520A1 (en) * 2000-04-06 2001-10-18 Bacou-Dalloz Ab Earplug
GB2458538A (en) * 2008-03-28 2009-09-30 Jukka Isorinne Ear plug with vent and flexible vanes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001076520A1 (en) * 2000-04-06 2001-10-18 Bacou-Dalloz Ab Earplug
GB2458538A (en) * 2008-03-28 2009-09-30 Jukka Isorinne Ear plug with vent and flexible vanes

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years