EP0366409A3 - Sight corrective lens mounting system for respirators - Google Patents

Sight corrective lens mounting system for respirators Download PDF

Info

Publication number
EP0366409A3
EP0366409A3 EP19890310942 EP89310942A EP0366409A3 EP 0366409 A3 EP0366409 A3 EP 0366409A3 EP 19890310942 EP19890310942 EP 19890310942 EP 89310942 A EP89310942 A EP 89310942A EP 0366409 A3 EP0366409 A3 EP 0366409A3
Authority
EP
European Patent Office
Prior art keywords
surround
lens
respirators
corrective lens
mounting system
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.)
Withdrawn
Application number
EP19890310942
Other languages
German (de)
French (fr)
Other versions
EP0366409A2 (en
Inventor
Cyril Nelson Edward Angell
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.)
Avon Industrial Polymers Ltd
Original Assignee
Avon Industrial Polymers 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 Avon Industrial Polymers Ltd filed Critical Avon Industrial Polymers Ltd
Publication of EP0366409A2 publication Critical patent/EP0366409A2/en
Publication of EP0366409A3 publication Critical patent/EP0366409A3/en
Withdrawn legal-status Critical Current

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
    • A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
    • A62B18/082—Assembling eyepieces, lenses or vision-correction means in or on gas-masks

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

A means for attachment of a sight corrective lens (19) adjacent the eyepiece (4) of a respirator includes a lens mount (10) and a lens surround (2), the surround (2) having blind recesses (6b,7b) therein into which engage tabs (9,18) on the mount (10), the tabs (9,18) and recesses (6b,7b) being of different dimensions at different positions around the frames so as to assure a unique orientation of the lens mount (10) in relation to the surround (2) when they are engaged. At least one tab (9,18) may have spaced-­ apart protrusions (15) for interfitting with a lug (7a) projecting radially from its associated blind recess (7b).
EP19890310942 1988-10-25 1989-10-24 Sight corrective lens mounting system for respirators Withdrawn EP0366409A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB888824986A GB8824986D0 (en) 1988-10-25 1988-10-25 Sight corrective lens mounting system for respirators
GB8824986 1988-10-25

Publications (2)

Publication Number Publication Date
EP0366409A2 EP0366409A2 (en) 1990-05-02
EP0366409A3 true EP0366409A3 (en) 1990-11-28

Family

ID=10645768

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890310942 Withdrawn EP0366409A3 (en) 1988-10-25 1989-10-24 Sight corrective lens mounting system for respirators

Country Status (4)

Country Link
EP (1) EP0366409A3 (en)
DK (1) DK526389A (en)
GB (1) GB8824986D0 (en)
NO (1) NO894217L (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR49815E (en) * 1938-03-07 1939-08-08 Medical cup holder device for gas masks
DE2646042A1 (en) * 1976-10-08 1978-04-13 Auergesellschaft Gmbh Gas mask spectacle holder - has U=shaped frame with legs hooked in inlet air channels and web under visor sealing
GB2200475A (en) * 1987-01-30 1988-08-03 Avon Ind Polymers Mount for an eyepiece lens

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR49815E (en) * 1938-03-07 1939-08-08 Medical cup holder device for gas masks
DE2646042A1 (en) * 1976-10-08 1978-04-13 Auergesellschaft Gmbh Gas mask spectacle holder - has U=shaped frame with legs hooked in inlet air channels and web under visor sealing
GB2200475A (en) * 1987-01-30 1988-08-03 Avon Ind Polymers Mount for an eyepiece lens

Also Published As

Publication number Publication date
DK526389D0 (en) 1989-10-24
NO894217L (en) 1990-04-26
DK526389A (en) 1990-04-26
EP0366409A2 (en) 1990-05-02
NO894217D0 (en) 1989-10-24
GB8824986D0 (en) 1988-11-30

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