GB1092378A - Device for filtering air - Google Patents

Device for filtering air

Info

Publication number
GB1092378A
GB1092378A GB3820763A GB3820763A GB1092378A GB 1092378 A GB1092378 A GB 1092378A GB 3820763 A GB3820763 A GB 3820763A GB 3820763 A GB3820763 A GB 3820763A GB 1092378 A GB1092378 A GB 1092378A
Authority
GB
United Kingdom
Prior art keywords
tube
face
closable
carrying
valve
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
GB3820763A
Inventor
Maurice Arthur Smith
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.)
Chapman & Smith Ltd
Original Assignee
Chapman & Smith Ltd
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 Chapman & Smith Ltd filed Critical Chapman & Smith Ltd
Priority to GB3820763A priority Critical patent/GB1092378A/en
Publication of GB1092378A publication Critical patent/GB1092378A/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
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00Filters for breathing-protection purposes
    • A62B23/02Filters for breathing-protection purposes for respirators
    • A62B23/025Filters for breathing-protection purposes for respirators the filter having substantially the shape of a mask

Abstract

1,092,378. Face masks. CHAPMAN & SMITH Ltd. Dec. 23, 1964 [Sept. 27, 1963], No. 38207/63. Heading A5T. A face mask comprises an apertured plate 1 carrying resilient means 5 which sealingly engage the face of the user, an air permeable filter pad 8 closing the aperture of the plate 1 and carrying a non return exhaling valve. The pad may comprise an envelope of sponge rubber, foam plastic or surgical lint enclosing a resin impregnated woollen material. The valve may comprise a flap 12 closable on eyelet 11; a tube and a ball closable on a resilient seating on the tube; or a tube of flexible material having a slit providing a one way seal.
GB3820763A 1963-09-27 1963-09-27 Device for filtering air Expired GB1092378A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3820763A GB1092378A (en) 1963-09-27 1963-09-27 Device for filtering air

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3820763A GB1092378A (en) 1963-09-27 1963-09-27 Device for filtering air

Publications (1)

Publication Number Publication Date
GB1092378A true GB1092378A (en) 1967-11-22

Family

ID=10401948

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3820763A Expired GB1092378A (en) 1963-09-27 1963-09-27 Device for filtering air

Country Status (1)

Country Link
GB (1) GB1092378A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2236681A (en) * 1989-10-12 1991-04-17 Harry Cole Respiratory protection device
GB2264060A (en) * 1992-02-12 1993-08-18 Kuo Huei Liang Mask with means for passing out the expiration of air
US5558089A (en) * 1994-10-13 1996-09-24 Minnesota Mining And Manufacturing Company Respirator nose clip
USD412573S (en) 1994-10-14 1999-08-03 3M Innovative Properties Company Nose clip for a filtering face mask
WO2005000411A1 (en) * 2003-06-19 2005-01-06 3M Innovative Properties Company Filtering face mask that has a resilient seal surface in its exhalation valve
CN112494837A (en) * 2020-12-03 2021-03-16 林语轩 High protective mask adaptive to facial features of infant

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2236681A (en) * 1989-10-12 1991-04-17 Harry Cole Respiratory protection device
WO1991005584A1 (en) * 1989-10-12 1991-05-02 Harry Cole Respiratory protection device
GB2236681B (en) * 1989-10-12 1992-04-22 Harry Cole Respiratory protection device
GB2264060A (en) * 1992-02-12 1993-08-18 Kuo Huei Liang Mask with means for passing out the expiration of air
US5558089A (en) * 1994-10-13 1996-09-24 Minnesota Mining And Manufacturing Company Respirator nose clip
USD412573S (en) 1994-10-14 1999-08-03 3M Innovative Properties Company Nose clip for a filtering face mask
WO2005000411A1 (en) * 2003-06-19 2005-01-06 3M Innovative Properties Company Filtering face mask that has a resilient seal surface in its exhalation valve
US7188622B2 (en) 2003-06-19 2007-03-13 3M Innovative Properties Company Filtering face mask that has a resilient seal surface in its exhalation valve
CN112494837A (en) * 2020-12-03 2021-03-16 林语轩 High protective mask adaptive to facial features of infant

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