FR2256747A1 - Surgical facial masks prodn. - from thermoplastic filaments aligned perpendicular to direction of air flow - Google Patents

Surgical facial masks prodn. - from thermoplastic filaments aligned perpendicular to direction of air flow

Info

Publication number
FR2256747A1
FR2256747A1 FR7400534A FR7400534A FR2256747A1 FR 2256747 A1 FR2256747 A1 FR 2256747A1 FR 7400534 A FR7400534 A FR 7400534A FR 7400534 A FR7400534 A FR 7400534A FR 2256747 A1 FR2256747 A1 FR 2256747A1
Authority
FR
France
Prior art keywords
air flow
prodn
thermoplastic filaments
aligned perpendicular
facial masks
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.)
Granted
Application number
FR7400534A
Other languages
French (fr)
Other versions
FR2256747B1 (en
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.)
Johnson and Johnson
Original Assignee
Johnson and Johnson
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 Johnson and Johnson filed Critical Johnson and Johnson
Priority to FR7400534A priority Critical patent/FR2256747A1/en
Publication of FR2256747A1 publication Critical patent/FR2256747A1/en
Application granted granted Critical
Publication of FR2256747B1 publication Critical patent/FR2256747B1/fr
Granted legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A41D13/1107—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape
    • A41D13/1115—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a horizontal pleated pocket

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Materials For Medical Uses (AREA)

Abstract

A surgical facial mask has a section (I) of its main body designed to cover the nose and mouth and possesses a means for fastening (I) over the nose and mouth. (I) consists of a pseudo-tissue formed from thermoplastic filaments with dia. 14-20 mu; most of the filaments being arranged in a plane perpendicular to the direction of air flow through the mask, the tissue weighing 43.54-55.98g/0.84m2 (1.4 oz. - 1.8 ox/yd2.) and having a thickness of 0.0254 - 0.0508 cm (0.01"-0.02") and an empty volume of about 85%, and being free of agglutinants.
FR7400534A 1974-01-08 1974-01-08 Surgical facial masks prodn. - from thermoplastic filaments aligned perpendicular to direction of air flow Granted FR2256747A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7400534A FR2256747A1 (en) 1974-01-08 1974-01-08 Surgical facial masks prodn. - from thermoplastic filaments aligned perpendicular to direction of air flow

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7400534A FR2256747A1 (en) 1974-01-08 1974-01-08 Surgical facial masks prodn. - from thermoplastic filaments aligned perpendicular to direction of air flow

Publications (2)

Publication Number Publication Date
FR2256747A1 true FR2256747A1 (en) 1975-08-01
FR2256747B1 FR2256747B1 (en) 1978-01-06

Family

ID=9133206

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7400534A Granted FR2256747A1 (en) 1974-01-08 1974-01-08 Surgical facial masks prodn. - from thermoplastic filaments aligned perpendicular to direction of air flow

Country Status (1)

Country Link
FR (1) FR2256747A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983002726A1 (en) * 1982-02-09 1983-08-18 Van Der Smissen, Carl-Ernst Filtering respiratory half-mask
WO2015080228A1 (en) * 2013-11-29 2015-06-04 興和株式会社 Mask

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983002726A1 (en) * 1982-02-09 1983-08-18 Van Der Smissen, Carl-Ernst Filtering respiratory half-mask
WO2015080228A1 (en) * 2013-11-29 2015-06-04 興和株式会社 Mask

Also Published As

Publication number Publication date
FR2256747B1 (en) 1978-01-06

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Legal Events

Date Code Title Description
ST Notification of lapse