GB452112A - Dustfilter against poisonous dusts - Google Patents

Dustfilter against poisonous dusts

Info

Publication number
GB452112A
GB452112A GB4532/35A GB453235A GB452112A GB 452112 A GB452112 A GB 452112A GB 4532/35 A GB4532/35 A GB 4532/35A GB 453235 A GB453235 A GB 453235A GB 452112 A GB452112 A GB 452112A
Authority
GB
United Kingdom
Prior art keywords
casing
dustfilter
dusts
moulded
feb
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
GB4532/35A
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 GB452112A publication Critical patent/GB452112A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D5/00—Liquid processing apparatus in which no immersion is effected; Washing apparatus in which no immersion is effected
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B13/00—Special devices for ventilating gasproof shelters

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

452,112. Gas - filters. CORI, B., 9, Meinekestrasse, Berlin. Feb. 12, 1935, No. 4532. Convention date, Feb. 13, 1934. [Class 8 (ii)] [See also Group VI] The edges of a pleated fabric filter 2 for use in gas masks, or otherwise, are embedded air-tight in its moulded &c. casing 8 during the formation of the casing. The filter may be held in shape between oppositely notched blocks, from which the edges protrude, the casing being moulded &c. around the blocks.
GB4532/35A 1934-02-13 1935-02-12 Dustfilter against poisonous dusts Expired GB452112A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE452112X 1934-02-13

Publications (1)

Publication Number Publication Date
GB452112A true GB452112A (en) 1936-08-12

Family

ID=6538606

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4532/35A Expired GB452112A (en) 1934-02-13 1935-02-12 Dustfilter against poisonous dusts

Country Status (2)

Country Link
FR (1) FR452112A (en)
GB (1) GB452112A (en)

Also Published As

Publication number Publication date
FR452112A (en) 1913-05-08

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