BR7502909A - Um dispositivo protetor de ouvidos para capacete de seguranca - Google Patents

Um dispositivo protetor de ouvidos para capacete de seguranca

Info

Publication number
BR7502909A
BR7502909A BR3699/75A BR7503699A BR7502909A BR 7502909 A BR7502909 A BR 7502909A BR 3699/75 A BR3699/75 A BR 3699/75A BR 7503699 A BR7503699 A BR 7503699A BR 7502909 A BR7502909 A BR 7502909A
Authority
BR
Brazil
Prior art keywords
protective device
safety helmets
ear protective
ear
helmets
Prior art date
Application number
BR3699/75A
Other languages
English (en)
Inventor
E Davison
L Ziegler
Original Assignee
Mine Safety Appliances Co
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 Mine Safety Appliances Co filed Critical Mine Safety Appliances Co
Publication of BR7502909A publication Critical patent/BR7502909A/pt

Links

Classifications

    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/16—Ear protection devices
    • A42B3/166—Integral hearing protection

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Helmets And Other Head Coverings (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
BR3699/75A 1974-06-26 1975-05-12 Um dispositivo protetor de ouvidos para capacete de seguranca BR7502909A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US483409A US3898700A (en) 1974-06-26 1974-06-26 Ear protecting device for safety caps

Publications (1)

Publication Number Publication Date
BR7502909A true BR7502909A (pt) 1976-07-06

Family

ID=23919950

Family Applications (1)

Application Number Title Priority Date Filing Date
BR3699/75A BR7502909A (pt) 1974-06-26 1975-05-12 Um dispositivo protetor de ouvidos para capacete de seguranca

Country Status (8)

Country Link
US (1) US3898700A (pt)
BR (1) BR7502909A (pt)
CA (1) CA1035901A (pt)
DE (1) DE2520038C3 (pt)
GB (2) GB1468637A (pt)
IT (1) IT1039352B (pt)
SE (1) SE407663B (pt)
ZA (1) ZA752080B (pt)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4069512A (en) * 1975-05-12 1978-01-24 Tore Georg Palmaer Locating device for ear-muffs on helmets
SE408851B (sv) * 1977-07-01 1979-07-16 T G Palmaer Anordning vid skyddshjaelm eller ett liknande baerorgan
WO2011160157A1 (en) * 2010-06-21 2011-12-29 Jorge Miguel Pereira Ear muffs
USD741550S1 (en) 2014-05-02 2015-10-20 3M Innovative Properties Company Ear muff attachment arm
USD842982S1 (en) 2016-03-28 2019-03-12 3M Innovative Properties Company Hardhat suspension adapter for half facepiece respirators
USD816209S1 (en) 2016-03-28 2018-04-24 3M Innovative Properties Company Respirator inlet port connection seal
CN108883322B (zh) 2016-03-28 2021-09-14 3M创新有限公司 呼吸器密合度检查密封装置和方法
CN108883321A (zh) 2016-03-28 2018-11-23 3M创新有限公司 头戴件悬架附接元件
KR102420496B1 (ko) 2016-03-28 2022-07-13 쓰리엠 이노베이티브 프로퍼티즈 캄파니 다중 챔버 호흡기 밀봉 장치 및 방법
USD827810S1 (en) 2016-03-28 2018-09-04 3M Innovative Properties Company Hardhat suspension adapter for half facepiece respirators

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US306874A (en) * 1884-10-21 Carriage-top prop
US13112A (en) * 1855-06-19 House
US1560718A (en) * 1922-04-12 1925-11-10 Splitdorf Electrical Co Receiver headband
US3375529A (en) * 1966-11-22 1968-04-02 Mine Safety Appliances Co Assembly for mounting face protection devices on headgear
US3430261A (en) * 1967-03-01 1969-03-04 Air Reduction Sound attenuator attachment for a protective helmet
US3562816A (en) * 1969-06-23 1971-02-16 American Optical Corp Attachment mounting means for hearing protector earcups

Also Published As

Publication number Publication date
CA1035901A (en) 1978-08-08
DE2520038B2 (de) 1978-07-27
US3898700A (en) 1975-08-12
IT1039352B (it) 1979-12-10
SE407663B (sv) 1979-04-09
DE2520038C3 (de) 1979-04-12
ZA752080B (en) 1976-06-30
SE7507314L (sv) 1975-12-29
GB1468637A (en) 1977-03-30
DE2520038A1 (de) 1976-01-15
GB1468638A (en) 1977-03-30

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