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GB289808A - Improvements in and relating to protective gas-masks - Google Patents

Improvements in and relating to protective gas-masks

Info

Publication number
GB289808A
GB289808A GB12628/28A GB1262828A GB289808A GB 289808 A GB289808 A GB 289808A GB 12628/28 A GB12628/28 A GB 12628/28A GB 1262828 A GB1262828 A GB 1262828A GB 289808 A GB289808 A GB 289808A
Authority
GB
United Kingdom
Prior art keywords
drõger
straps
mask
filter box
strap
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
GB12628/28A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB289808A publication Critical patent/GB289808A/en
Expired 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

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

289,808. Drõger, (nÚe Strange). E., (trading as Drõgerwerk, H. & B. Drõger), (Representative of Drõger, A. B.). May 2, 1927, [Convention date]. Respirators. - In gas masks b in which the filter box d is suspended from the mouthpiece by the hose c, the filter box is additionally supported by straps such as e attached to the upper corners m of the mask, or, as shown, by a single strap passing around the head, guides being provided at m and on a headpad n forming part of the normal harness of the mask. The filter box d is provided with a retaining ring h through which the strap or straps e are passed or to which they are attached by hooks. Adjusting buckles g are provided on the strap or straps e. As illustrated the hose c comprises two branches controlled by a common inlet valve and entering the mask on either side of an outlet valve p.
GB12628/28A 1927-05-02 1928-04-30 Improvements in and relating to protective gas-masks Expired GB289808A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE289808X 1927-05-02

Publications (1)

Publication Number Publication Date
GB289808A true GB289808A (en) 1928-11-15

Family

ID=6059901

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12628/28A Expired GB289808A (en) 1927-05-02 1928-04-30 Improvements in and relating to protective gas-masks

Country Status (1)

Country Link
GB (1) GB289808A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2525236A (en) * 1946-04-23 1950-10-10 Robert R Palmer Face mask or shield

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2525236A (en) * 1946-04-23 1950-10-10 Robert R Palmer Face mask or shield

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