FI50044C - Device for sound attenuation and airflow control in personal protective equipment using compressed air. - Google Patents

Device for sound attenuation and airflow control in personal protective equipment using compressed air.

Info

Publication number
FI50044C
FI50044C FI741302A FI130274A FI50044C FI 50044 C FI50044 C FI 50044C FI 741302 A FI741302 A FI 741302A FI 130274 A FI130274 A FI 130274A FI 50044 C FI50044 C FI 50044C
Authority
FI
Finland
Prior art keywords
compressed air
protective equipment
airflow control
sound attenuation
personal protective
Prior art date
Application number
FI741302A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI50044B (en
Inventor
Bengt Oesterback
Original Assignee
Kemira Oy
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 Kemira Oy filed Critical Kemira Oy
Priority to FI741302A priority Critical patent/FI50044C/en
Priority to GB15947/75A priority patent/GB1511303A/en
Priority to SE7504460A priority patent/SE400707B/en
Priority to NO751507A priority patent/NO139430C/en
Priority to DK184775AA priority patent/DK138254B/en
Publication of FI50044B publication Critical patent/FI50044B/fi
Application granted granted Critical
Publication of FI50044C publication Critical patent/FI50044C/en

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
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/04—Eye-masks ; Devices to be worn on the face, not intended for looking through; Eye-pads for sunbathing
    • A61F9/06—Masks, shields or hoods for welders
    • A61F9/068—Masks, shields or hoods for welders with supply or suction of gas, air or smoke inside or outside the welding hood
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/04—Gas helmets
FI741302A 1974-04-29 1974-04-29 Device for sound attenuation and airflow control in personal protective equipment using compressed air. FI50044C (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FI741302A FI50044C (en) 1974-04-29 1974-04-29 Device for sound attenuation and airflow control in personal protective equipment using compressed air.
GB15947/75A GB1511303A (en) 1974-04-29 1975-04-17 Device for noise suppression and direction of air flow for personal protective headgear operating with compressed air
SE7504460A SE400707B (en) 1974-04-29 1975-04-17 DEVICE FOR SOUND DAMPING AND CONTROL OF AIR CURRENTS IN COMPRESSED AIR USE PERSONAL PROTECTIVE ARTICLES
NO751507A NO139430C (en) 1974-04-29 1975-04-28 DEVICE FOR Muffling SOUND AND CONTROL OF AIR CURRENTS IN COMPRESSED AIR EXPERIENCE, PERSONAL PROTECTION ARTICLES
DK184775AA DK138254B (en) 1974-04-29 1975-04-28 Welding helmet with fresh air supply.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI741302A FI50044C (en) 1974-04-29 1974-04-29 Device for sound attenuation and airflow control in personal protective equipment using compressed air.

Publications (2)

Publication Number Publication Date
FI50044B FI50044B (en) 1975-09-01
FI50044C true FI50044C (en) 1975-12-10

Family

ID=8505406

Family Applications (1)

Application Number Title Priority Date Filing Date
FI741302A FI50044C (en) 1974-04-29 1974-04-29 Device for sound attenuation and airflow control in personal protective equipment using compressed air.

Country Status (5)

Country Link
DK (1) DK138254B (en)
FI (1) FI50044C (en)
GB (1) GB1511303A (en)
NO (1) NO139430C (en)
SE (1) SE400707B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1587121A (en) * 1976-05-14 1981-04-01 Secr Defence Protective clothing
DE10315607B4 (en) * 2003-05-13 2005-12-08 Dräger Safety AG & Co. KGaA Ventilation system for protective clothing
US7178932B1 (en) * 2006-01-04 2007-02-20 Michael Allen Buckman Welding helmet
US7534005B1 (en) 2006-01-04 2009-05-19 Michael Buckman Welding helmet
DE102014005544A1 (en) * 2014-04-16 2015-10-22 Sata Gmbh & Co. Kg Respiratory protection device
CN106309009A (en) * 2015-07-02 2017-01-11 泰克曼(南京)电子有限公司 Welding mask provided with zipper structure and welding mask assembly
USD827810S1 (en) 2016-03-28 2018-09-04 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
USD842982S1 (en) 2016-03-28 2019-03-12 3M Innovative Properties Company Hardhat suspension adapter for half facepiece respirators
WO2017172358A1 (en) 2016-03-28 2017-10-05 3M Innovative Properties Company Respirator fit check sealing devices and methods
EP3436163B1 (en) 2016-03-28 2020-08-19 3M Innovative Properties Company Multiple chamber respirator sealing devices and methods
CN108904131B (en) * 2018-07-24 2020-12-01 阜阳安固锅炉压力容器制造有限公司 Intelligent helmet is used in welding
ES2868424A1 (en) * 2020-04-20 2021-10-21 Vilas Joaquin Sabaris PERSONAL HEALTH PROTECTION SCREEN (Machine-translation by Google Translate, not legally binding)
ES2778900A1 (en) * 2020-06-01 2020-08-12 Acad Dental De Mallorca Sl AERIAL DEVICE APPLICABLE TO PERSONAL PROTECTION ELEMENTS (Machine-translation by Google Translate, not legally binding)

Also Published As

Publication number Publication date
NO751507L (en) 1975-10-30
DK138254B (en) 1978-08-07
FI50044B (en) 1975-09-01
GB1511303A (en) 1978-05-17
SE400707B (en) 1978-04-10
DK138254C (en) 1979-01-22
NO139430C (en) 1979-03-14
DK184775A (en) 1975-10-30
NO139430B (en) 1978-12-04
SE7504460L (en) 1975-10-30

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