ZA752080B - Ear protecting device for safety caps - Google Patents
Ear protecting device for safety capsInfo
- Publication number
- ZA752080B ZA752080B ZA00752080A ZA752080A ZA752080B ZA 752080 B ZA752080 B ZA 752080B ZA 00752080 A ZA00752080 A ZA 00752080A ZA 752080 A ZA752080 A ZA 752080A ZA 752080 B ZA752080 B ZA 752080B
- Authority
- ZA
- South Africa
- Prior art keywords
- protecting device
- safety caps
- ear protecting
- ear
- caps
- Prior art date
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)
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 |
---|---|
ZA752080B true ZA752080B (en) | 1976-06-30 |
Family
ID=23919950
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA00752080A ZA752080B (en) | 1974-06-26 | 1975-04-02 | Ear protecting device for safety caps |
Country Status (8)
Country | Link |
---|---|
US (1) | US3898700A (it) |
BR (1) | BR7502909A (it) |
CA (1) | CA1035901A (it) |
DE (1) | DE2520038C3 (it) |
GB (2) | GB1468637A (it) |
IT (1) | IT1039352B (it) |
SE (1) | SE407663B (it) |
ZA (1) | ZA752080B (it) |
Families Citing this family (10)
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 |
EP3436161A4 (en) | 2016-03-28 | 2020-01-22 | 3M Innovative Properties Company | HELMET SUSPENSION FIXING ELEMENT |
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 |
USD827810S1 (en) | 2016-03-28 | 2018-09-04 | 3M Innovative Properties Company | Hardhat suspension adapter for half facepiece respirators |
KR102420496B1 (ko) | 2016-03-28 | 2022-07-13 | 쓰리엠 이노베이티브 프로퍼티즈 캄파니 | 다중 챔버 호흡기 밀봉 장치 및 방법 |
USD842982S1 (en) | 2016-03-28 | 2019-03-12 | 3M Innovative Properties Company | Hardhat suspension adapter for half facepiece respirators |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US13112A (en) * | 1855-06-19 | House | ||
US306874A (en) * | 1884-10-21 | Carriage-top prop | ||
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 |
-
1974
- 1974-06-26 US US483409A patent/US3898700A/en not_active Expired - Lifetime
-
1975
- 1975-03-27 GB GB1304975A patent/GB1468637A/en not_active Expired
- 1975-03-27 GB GB3402576A patent/GB1468638A/en not_active Expired
- 1975-04-02 ZA ZA00752080A patent/ZA752080B/xx unknown
- 1975-04-29 CA CA225,714A patent/CA1035901A/en not_active Expired
- 1975-05-06 DE DE2520038A patent/DE2520038C3/de not_active Expired
- 1975-05-12 BR BR3699/75A patent/BR7502909A/pt unknown
- 1975-06-24 IT IT24700/75A patent/IT1039352B/it active
- 1975-06-25 SE SE7507314A patent/SE407663B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
IT1039352B (it) | 1979-12-10 |
DE2520038B2 (de) | 1978-07-27 |
CA1035901A (en) | 1978-08-08 |
GB1468638A (en) | 1977-03-30 |
SE407663B (sv) | 1979-04-09 |
DE2520038C3 (de) | 1979-04-12 |
BR7502909A (pt) | 1976-07-06 |
US3898700A (en) | 1975-08-12 |
SE7507314L (sv) | 1975-12-29 |
GB1468637A (en) | 1977-03-30 |
DE2520038A1 (de) | 1976-01-15 |
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