GB948053A - Improvements in ear protectors - Google Patents

Improvements in ear protectors

Info

Publication number
GB948053A
GB948053A GB7955/60A GB795560A GB948053A GB 948053 A GB948053 A GB 948053A GB 7955/60 A GB7955/60 A GB 7955/60A GB 795560 A GB795560 A GB 795560A GB 948053 A GB948053 A GB 948053A
Authority
GB
United Kingdom
Prior art keywords
shell
transducer
diaphragm
ear
sound
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
GB7955/60A
Inventor
William Blanchard Wad Sworth
Forrest Richardson Poole
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.)
David Clark Co Inc
Original Assignee
David Clark Co Inc
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 David Clark Co Inc filed Critical David Clark Co Inc
Priority to GB7955/60A priority Critical patent/GB948053A/en
Publication of GB948053A publication Critical patent/GB948053A/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
    • A61F11/14—Protective devices for the ears external, e.g. earcaps or earmuffs
    • 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
    • A61F11/14—Protective devices for the ears external, e.g. earcaps or earmuffs
    • A61F11/145—Protective devices for the ears external, e.g. earcaps or earmuffs electric, e.g. for active noise reduction

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

948,053. Earpieces. DAVID CLARK CO. Inc. March 7, 1960, No. 7955/60. Heading H4J. An ear protector comprises a substantially sound-proof shell 10, Figs. 1, 3, carrying a diaphragm 24 in which is mounted a transducer 26 which, in use with the ear protector surrounding the outer ear, converts sound energy received from the ear canal into electrical energy for transmission to a point outside the shell 10. The transducer may also be used as an earphone, a switch 32 switching from one function to the other. A band 14 of soft material contacts the head of the user. The shell 10 is in two parts secured together at flanges 18 by screws 20 or cement. The diaphragm 24 is a leather disc and is fixed between the flanges 18. The transducer 26 is held in the diaphragm 24 by a flange 28 on the transducer and a retaining ring 29. The shell 10 is lined with sound-deadening material. In a modification, Fig. 7, the shell 10 contains a microphone 36 and a receiver 38.
GB7955/60A 1960-03-07 1960-03-07 Improvements in ear protectors Expired GB948053A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7955/60A GB948053A (en) 1960-03-07 1960-03-07 Improvements in ear protectors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7955/60A GB948053A (en) 1960-03-07 1960-03-07 Improvements in ear protectors

Publications (1)

Publication Number Publication Date
GB948053A true GB948053A (en) 1964-01-29

Family

ID=9842995

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7955/60A Expired GB948053A (en) 1960-03-07 1960-03-07 Improvements in ear protectors

Country Status (1)

Country Link
GB (1) GB948053A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5113202A (en) * 1974-06-12 1976-02-02 Akg Akustische Kino Geraete
EP0085533A2 (en) * 1982-01-28 1983-08-10 CHAPMAN & SMITH LIMITED Ear defender and diaphragm therefor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5113202A (en) * 1974-06-12 1976-02-02 Akg Akustische Kino Geraete
JPS5342401B2 (en) * 1974-06-12 1978-11-11
EP0085533A2 (en) * 1982-01-28 1983-08-10 CHAPMAN & SMITH LIMITED Ear defender and diaphragm therefor
EP0085533A3 (en) * 1982-01-28 1983-08-17 CHAPMAN & SMITH LIMITED Ear defender and diaphragm therefor

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