GB780710A - Improvements in or relating to respirators - Google Patents

Improvements in or relating to respirators

Info

Publication number
GB780710A
GB780710A GB923653A GB923653A GB780710A GB 780710 A GB780710 A GB 780710A GB 923653 A GB923653 A GB 923653A GB 923653 A GB923653 A GB 923653A GB 780710 A GB780710 A GB 780710A
Authority
GB
United Kingdom
Prior art keywords
respirators
relating
xxviii
fibres
contours
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
GB923653A
Inventor
Henry Lionel Green
Daniel James Thomas
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB923653A priority Critical patent/GB780710A/en
Publication of GB780710A publication Critical patent/GB780710A/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A41D13/1107Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape
    • A41D13/1138Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a cup configuration
    • A41D13/1146Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a cup configuration obtained by moulding

Abstract

A respiratory is provided with a face-piece designed to conform to the contours of the face of the wearer and fabricated from porous fibrous filter material comprising at least some fibres of thermoplastic material, for example of polystyrene, by moulding a blank of the material into a coherent form under heat and pressure in a mould of appropriate shape for a mouth and nose respirator. Specification 780,709, [Group XXVIII] is referred to.
GB923653A 1953-04-02 1953-04-02 Improvements in or relating to respirators Expired GB780710A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB923653A GB780710A (en) 1953-04-02 1953-04-02 Improvements in or relating to respirators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB923653A GB780710A (en) 1953-04-02 1953-04-02 Improvements in or relating to respirators

Publications (1)

Publication Number Publication Date
GB780710A true GB780710A (en) 1957-08-07

Family

ID=9868013

Family Applications (1)

Application Number Title Priority Date Filing Date
GB923653A Expired GB780710A (en) 1953-04-02 1953-04-02 Improvements in or relating to respirators

Country Status (1)

Country Link
GB (1) GB780710A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3220409A (en) * 1961-03-28 1965-11-30 Johnson & Johnson Face mask
US3333585A (en) * 1964-12-14 1967-08-01 Minnesota Mining & Mfg Cold weather face mask
DE1298420B (en) * 1966-10-29 1969-06-26 Medizintechnik Leipzig Veb Production of respiratory protection half masks from flat dust filter material
US3802429A (en) * 1971-07-06 1974-04-09 Johnson & Johnson Surgical face mask
US5107547A (en) * 1991-01-10 1992-04-28 Baxter International Inc. Adjustable medical face mask fastener
WO2001058293A1 (en) * 2000-02-09 2001-08-16 3M Innovative Properties Company Filtering face mask that has headband mounts
EP1354524A2 (en) * 1997-08-04 2003-10-22 Minnesota Mining And Manufacturing Company Filtering face mask having one or two straps
CN105795554A (en) * 2015-12-07 2016-07-27 小米科技有限责任公司 Mask

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3220409A (en) * 1961-03-28 1965-11-30 Johnson & Johnson Face mask
US3333585A (en) * 1964-12-14 1967-08-01 Minnesota Mining & Mfg Cold weather face mask
DE1298420B (en) * 1966-10-29 1969-06-26 Medizintechnik Leipzig Veb Production of respiratory protection half masks from flat dust filter material
US3802429A (en) * 1971-07-06 1974-04-09 Johnson & Johnson Surgical face mask
US5107547A (en) * 1991-01-10 1992-04-28 Baxter International Inc. Adjustable medical face mask fastener
EP1354524A2 (en) * 1997-08-04 2003-10-22 Minnesota Mining And Manufacturing Company Filtering face mask having one or two straps
EP1354524A3 (en) * 1997-08-04 2004-07-21 Minnesota Mining And Manufacturing Company Filtering face mask having one or two straps
WO2001058293A1 (en) * 2000-02-09 2001-08-16 3M Innovative Properties Company Filtering face mask that has headband mounts
AU779329B2 (en) * 2000-02-09 2005-01-20 3M Innovative Properties Company Filtering face mask that has headband mounts
CN105795554A (en) * 2015-12-07 2016-07-27 小米科技有限责任公司 Mask
US10798979B2 (en) 2015-12-07 2020-10-13 Xiaomi Inc. Mask

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