GB527650A - Improvements in or relating to ear stoppers - Google Patents

Improvements in or relating to ear stoppers

Info

Publication number
GB527650A
GB527650A GB11632/39A GB1163239A GB527650A GB 527650 A GB527650 A GB 527650A GB 11632/39 A GB11632/39 A GB 11632/39A GB 1163239 A GB1163239 A GB 1163239A GB 527650 A GB527650 A GB 527650A
Authority
GB
United Kingdom
Prior art keywords
inertence
ear
coupling part
relating
stoppers
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
GB11632/39A
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.)
VERN OLIVER KNUDSEN
Original Assignee
VERN OLIVER KNUDSEN
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 VERN OLIVER KNUDSEN filed Critical VERN OLIVER KNUDSEN
Publication of GB527650A publication Critical patent/GB527650A/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)
  • Springs (AREA)

Abstract

527,650. Ear instruments. KNUDSEN, V. O. April 17, 1939, No. 11632. Convention date, Aug. 13, 1938. [Class 81 (ii)] Ear stoppers'are prepared comprising spaced acoustical inertences and, between them, an acoustical compliance coupling part. The body of the stopper 10 is of a flexible material such as rubber ; the outer inertence 11 a solid dense material such as brass, bronze steel or lead ; the inner inertence 12 a yieldable material such as soft or sponge rubber or beeswax ; the coupling part 16 a gas or vacuum chamber which may be lightly packed with a fibrous material or which may be divided with a third inertence.
GB11632/39A 1938-08-13 1939-04-17 Improvements in or relating to ear stoppers Expired GB527650A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US527650XA 1938-08-13 1938-08-13

Publications (1)

Publication Number Publication Date
GB527650A true GB527650A (en) 1940-10-14

Family

ID=21979753

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11632/39A Expired GB527650A (en) 1938-08-13 1939-04-17 Improvements in or relating to ear stoppers

Country Status (1)

Country Link
GB (1) GB527650A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3049925A1 (en) * 1979-10-03 1982-03-04 L Asker EAR PROTECTION PLUG AND A METHOD FOR THE PRODUCTION OF SAME
US4338929A (en) * 1976-03-18 1982-07-13 Gullfiber Ab Ear-plug
US4498469A (en) * 1980-10-22 1985-02-12 Gullfiber Ab Ear plug as well as a method and apparatus for the production thereof
WO2001032113A1 (en) * 1999-11-05 2001-05-10 Aearo Company Multi-color variably attenuating earplug
NL2031761B1 (en) * 2022-05-02 2023-11-13 Pro Dev B V Earplug

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4338929A (en) * 1976-03-18 1982-07-13 Gullfiber Ab Ear-plug
DE3049925A1 (en) * 1979-10-03 1982-03-04 L Asker EAR PROTECTION PLUG AND A METHOD FOR THE PRODUCTION OF SAME
US4498469A (en) * 1980-10-22 1985-02-12 Gullfiber Ab Ear plug as well as a method and apparatus for the production thereof
WO2001032113A1 (en) * 1999-11-05 2001-05-10 Aearo Company Multi-color variably attenuating earplug
NL2031761B1 (en) * 2022-05-02 2023-11-13 Pro Dev B V Earplug

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