FR452623A - Casque protecteur de l'ouie contre le bruit des explosions - Google Patents

Casque protecteur de l'ouie contre le bruit des explosions

Info

Publication number
FR452623A
FR452623A FR452623DA FR452623A FR 452623 A FR452623 A FR 452623A FR 452623D A FR452623D A FR 452623DA FR 452623 A FR452623 A FR 452623A
Authority
FR
France
Prior art keywords
explosions
noise
protection against
hearing protection
hearing
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
Other languages
English (en)
Inventor
Harry Francis Kalse
John Gerrard Kalse
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR452623A publication Critical patent/FR452623A/fr
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

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Psychology (AREA)
  • Acoustics & Sound (AREA)
  • Biophysics (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
FR452623D 1912-11-04 1912-11-04 Casque protecteur de l'ouie contre le bruit des explosions Expired FR452623A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR452623T 1912-11-04

Publications (1)

Publication Number Publication Date
FR452623A true FR452623A (fr) 1913-05-20

Family

ID=1492817

Family Applications (1)

Application Number Title Priority Date Filing Date
FR452623D Expired FR452623A (fr) 1912-11-04 1912-11-04 Casque protecteur de l'ouie contre le bruit des explosions

Country Status (1)

Country Link
FR (1) FR452623A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2784407A (en) * 1955-10-31 1957-03-12 Ladd John Sonic protector for ears
US2899683A (en) * 1959-08-18 Ear protectors
US2981958A (en) * 1955-04-07 1961-05-02 Clark Co Inc David Ear protector
US5068923A (en) * 1988-04-28 1991-12-03 Milmas Ab Noise attenuator attachment arm
US6056082A (en) * 1997-05-09 2000-05-02 3M Innovative Properties Company Ergonomic banded ear plug

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899683A (en) * 1959-08-18 Ear protectors
US2981958A (en) * 1955-04-07 1961-05-02 Clark Co Inc David Ear protector
US2784407A (en) * 1955-10-31 1957-03-12 Ladd John Sonic protector for ears
US5068923A (en) * 1988-04-28 1991-12-03 Milmas Ab Noise attenuator attachment arm
US6056082A (en) * 1997-05-09 2000-05-02 3M Innovative Properties Company Ergonomic banded ear plug

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