IT1164376B - Maschera facciale di respirazione - Google Patents

Maschera facciale di respirazione

Info

Publication number
IT1164376B
IT1164376B IT2243583A IT2243583A IT1164376B IT 1164376 B IT1164376 B IT 1164376B IT 2243583 A IT2243583 A IT 2243583A IT 2243583 A IT2243583 A IT 2243583A IT 1164376 B IT1164376 B IT 1164376B
Authority
IT
Italy
Prior art keywords
chamfered
exhalation valve
mask
concave
valve
Prior art date
Application number
IT2243583A
Other languages
English (en)
Other versions
IT8322435A0 (it
Inventor
James N Matheson
Philip L Lowry
Original Assignee
Usd Corp
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
Priority to US06/242,287 priority Critical patent/US4414973A/en
Priority to JP3882082A priority patent/JPS57160472A/ja
Priority to GB08317592A priority patent/GB2143136B/en
Priority claimed from GB08317592A external-priority patent/GB2143136B/en
Priority to AU16755/83A priority patent/AU1675583A/en
Priority to FR8311727A priority patent/FR2548910B1/fr
Application filed by Usd Corp filed Critical Usd Corp
Priority to IT2243583A priority patent/IT1164376B/it
Publication of IT8322435A0 publication Critical patent/IT8322435A0/it
Priority to GB08614481A priority patent/GB2176407B/en
Application granted granted Critical
Publication of IT1164376B publication Critical patent/IT1164376B/it

Links

Classifications

    • 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
    • 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
    • A62B18/02—Masks
    • A62B18/025—Halfmasks
    • 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
    • A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
    • A62B18/084—Means for fastening gas-masks to heads or helmets
    • 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
    • A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
    • A62B18/10—Valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/148—Check valves with flexible valve members the closure elements being fixed in their centre
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S24/00—Buckles, buttons, clasps
    • Y10S24/30—Separable-fastener or required component thereof
    • Y10S24/51—Separable-fastener or required component thereof including receiving member having cavity and mating member having insertable projection guided to interlock thereby
    • Y10S24/53—Projection or cavity rotates about axis of cavity access opening to interlock
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7879—Resilient material valve
    • Y10T137/7888—With valve member flexing about securement
    • Y10T137/789—Central mount
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
    • Y10T24/45005—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] with third detached member completing interlock [e.g., hook type]
    • Y10T24/45079—Belt, strap, harness, etc.

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Zoology (AREA)
  • Mechanical Engineering (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
IT2243583A 1981-03-10 1983-08-04 Maschera facciale di respirazione IT1164376B (it)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US06/242,287 US4414973A (en) 1981-03-10 1981-03-10 Respirator face mask
JP3882082A JPS57160472A (en) 1981-03-10 1982-03-10 Gas mask
GB08317592A GB2143136B (en) 1981-03-10 1983-06-29 Respirator face mask
AU16755/83A AU1675583A (en) 1981-03-10 1983-07-12 Respirator face mask
FR8311727A FR2548910B1 (fr) 1981-03-10 1983-07-13 Masque facial de respirateur
IT2243583A IT1164376B (it) 1981-03-10 1983-08-04 Maschera facciale di respirazione
GB08614481A GB2176407B (en) 1981-03-10 1986-06-13 Respirator face mask

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US06/242,287 US4414973A (en) 1981-03-10 1981-03-10 Respirator face mask
GB08317592A GB2143136B (en) 1981-03-10 1983-06-29 Respirator face mask
AU16755/83A AU1675583A (en) 1981-03-10 1983-07-12 Respirator face mask
FR8311727A FR2548910B1 (fr) 1981-03-10 1983-07-13 Masque facial de respirateur
IT2243583A IT1164376B (it) 1981-03-10 1983-08-04 Maschera facciale di respirazione
GB08614481A GB2176407B (en) 1981-03-10 1986-06-13 Respirator face mask

Publications (2)

Publication Number Publication Date
IT8322435A0 IT8322435A0 (it) 1983-08-04
IT1164376B true IT1164376B (it) 1987-04-08

Family

ID=27542566

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2243583A IT1164376B (it) 1981-03-10 1983-08-04 Maschera facciale di respirazione

Country Status (6)

Country Link
US (1) US4414973A (it)
JP (1) JPS57160472A (it)
AU (1) AU1675583A (it)
FR (1) FR2548910B1 (it)
GB (1) GB2176407B (it)
IT (1) IT1164376B (it)

Families Citing this family (190)

* Cited by examiner, † Cited by third party
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AU1675583A (en) 1985-01-17
FR2548910A1 (fr) 1985-01-18
GB2176407B (en) 1987-06-03
JPS57160472A (en) 1982-10-02
IT8322435A0 (it) 1983-08-04
FR2548910B1 (fr) 1986-05-09
GB2176407A (en) 1986-12-31
US4414973A (en) 1983-11-15
GB8614481D0 (en) 1986-07-16

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