GB1511303A - Device for noise suppression and direction of air flow for personal protective headgear operating with compressed air - Google Patents

Device for noise suppression and direction of air flow for personal protective headgear operating with compressed air

Info

Publication number
GB1511303A
GB1511303A GB15947/75A GB1594775A GB1511303A GB 1511303 A GB1511303 A GB 1511303A GB 15947/75 A GB15947/75 A GB 15947/75A GB 1594775 A GB1594775 A GB 1594775A GB 1511303 A GB1511303 A GB 1511303A
Authority
GB
United Kingdom
Prior art keywords
tube
air flow
air
protective headgear
noise suppression
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
GB15947/75A
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.)
Kemira Oyj
Original Assignee
Kemira Oyj
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 Oyj filed Critical Kemira Oyj
Publication of GB1511303A publication Critical patent/GB1511303A/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
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Emergency Management (AREA)
  • Ophthalmology & Optometry (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Pulmonology (AREA)
  • Business, Economics & Management (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

1511303 Protective headgear KEMIRA OY 17 April 1975 [29 April 1974] 15947/75 Heading A3V [Also in Division F2] A tube with holes 4 for discharging air, closed at one end e.g. by squeezing and connectable at the other to a compressed-air hose, is used for noise suppression of air flow and direction of air flow in personal protective headgear. The tube reduces the noise level of discharging air. The tube also directs the air flow to prevent draughts and keep the front window or net of the headgear clean and dry. The straight or curved cylindrical aluminium tube is 5 to 20 mm diameter, 30 cm long and perforated by 50 round holes 4 whose diameters are from 0.7 mm. to 2 mm. Gauge pressures in the tube of 0.2 kgf/cm<SP>2</SP> and 1.2 kgf/cm<SP>3</SP> produce a free air flow of 60 L/min and 170 L/min respectively. A synthetic e.g. woven nylon ribbon is wound around the tube in one or more layers or a stocking is used. The tube is attached with hose-clips to the helmet.
GB15947/75A 1974-04-29 1975-04-17 Device for noise suppression and direction of air flow for personal protective headgear operating with compressed air Expired GB1511303A (en)

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 (1)

Publication Number Publication Date
GB1511303A true GB1511303A (en) 1978-05-17

Family

ID=8505406

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15947/75A Expired 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

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)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2350851A1 (en) * 1976-05-14 1977-12-09 United Kingdom Government RESPIRATORY APPARATUS FOR PROTECTION AGAINST ADVERSE SUBSTANCES
DE10315607A1 (en) * 2003-05-13 2004-12-16 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
WO2015158420A1 (en) * 2014-04-16 2015-10-22 Sata Gmbh & Co. Kg Breathing apparatus
WO2017000380A1 (en) * 2015-07-02 2017-01-05 泰克曼(南京)电子有限公司 Welding mask having zipper structure and welding mask assembly
USD816209S1 (en) 2016-03-28 2018-04-24 3M Innovative Properties Company Respirator inlet port connection seal
USD827810S1 (en) 2016-03-28 2018-09-04 3M Innovative Properties Company Hardhat suspension adapter for half facepiece respirators
CN108904131A (en) * 2018-07-24 2018-11-30 闫羽 Intelligent helmet is used in a kind of welding
USD842982S1 (en) 2016-03-28 2019-03-12 3M Innovative Properties Company Hardhat suspension adapter for half facepiece respirators
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)
US11020619B2 (en) 2016-03-28 2021-06-01 3M Innovative Properties Company Multiple chamber respirator sealing devices and methods
ES2868424A1 (en) * 2020-04-20 2021-10-21 Vilas Joaquin Sabaris PERSONAL HEALTH PROTECTION SCREEN (Machine-translation by Google Translate, not legally binding)
US11219787B2 (en) 2016-03-28 2022-01-11 3M Innovative Properties Company Respirator fit check sealing devices and methods
US11992078B2 (en) 2016-03-28 2024-05-28 3M Innovative Properties Company Headwear suspension attachment element

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2350851A1 (en) * 1976-05-14 1977-12-09 United Kingdom Government RESPIRATORY APPARATUS FOR PROTECTION AGAINST ADVERSE SUBSTANCES
DE10315607A1 (en) * 2003-05-13 2004-12-16 Dräger Safety AG & Co. KGaA Ventilation system for 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
WO2015158420A1 (en) * 2014-04-16 2015-10-22 Sata Gmbh & Co. Kg Breathing apparatus
US10806953B2 (en) 2014-04-16 2020-10-20 Sata Gmbh & Co. Kg Breathing apparatus
WO2017000380A1 (en) * 2015-07-02 2017-01-05 泰克曼(南京)电子有限公司 Welding mask having zipper structure and welding mask assembly
US11045356B2 (en) 2015-07-02 2021-06-29 Tecmen Electronics Co., Ltd. Welding helmet having a zipper arrangement and welding helmet assembly
USD842982S1 (en) 2016-03-28 2019-03-12 3M Innovative Properties Company Hardhat suspension adapter for half facepiece respirators
USD827810S1 (en) 2016-03-28 2018-09-04 3M Innovative Properties Company Hardhat suspension adapter for half facepiece respirators
US11020619B2 (en) 2016-03-28 2021-06-01 3M Innovative Properties Company Multiple chamber respirator sealing devices and methods
USD816209S1 (en) 2016-03-28 2018-04-24 3M Innovative Properties Company Respirator inlet port connection seal
US11219787B2 (en) 2016-03-28 2022-01-11 3M Innovative Properties Company Respirator fit check sealing devices and methods
US11865375B2 (en) 2016-03-28 2024-01-09 3M Innovative Properties Company Respirator fit check sealing devices and methods
US11992078B2 (en) 2016-03-28 2024-05-28 3M Innovative Properties Company Headwear suspension attachment element
CN108904131A (en) * 2018-07-24 2018-11-30 闫羽 Intelligent helmet is used in a kind of welding
ES2868424A1 (en) * 2020-04-20 2021-10-21 Vilas Joaquin Sabaris PERSONAL HEALTH PROTECTION SCREEN (Machine-translation by Google Translate, not legally binding)
WO2021214358A1 (en) * 2020-04-20 2021-10-28 Joaquin Sabaris Vilas Screen for personal health protection
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
DK138254B (en) 1978-08-07
NO751507L (en) 1975-10-30
FI50044B (en) 1975-09-01
DK138254C (en) 1979-01-22
NO139430C (en) 1979-03-14
SE400707B (en) 1978-04-10
SE7504460L (en) 1975-10-30
NO139430B (en) 1978-12-04
DK184775A (en) 1975-10-30
FI50044C (en) 1975-12-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]