FR778512A - Air delivery device for ventilating shelters or rooms to protect against harmful gases - Google Patents

Air delivery device for ventilating shelters or rooms to protect against harmful gases

Info

Publication number
FR778512A
FR778512A FR778512DA FR778512A FR 778512 A FR778512 A FR 778512A FR 778512D A FR778512D A FR 778512DA FR 778512 A FR778512 A FR 778512A
Authority
FR
France
Prior art keywords
shelters
ventilating
rooms
delivery device
protect against
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
Other languages
French (fr)
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.)
DEGEA AG
Original Assignee
DEGEA AG
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 DEGEA AG filed Critical DEGEA AG
Application granted granted Critical
Publication of FR778512A publication Critical patent/FR778512A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B33/00—Pumps actuated by muscle power, e.g. for inflating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
    • F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
    • F04B45/045—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms with in- or outlet valve arranged in the plate-like pumping flexible members

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
FR778512D 1933-09-25 1934-09-15 Air delivery device for ventilating shelters or rooms to protect against harmful gases Expired FR778512A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE778512X 1933-09-25

Publications (1)

Publication Number Publication Date
FR778512A true FR778512A (en) 1935-03-18

Family

ID=6686989

Family Applications (1)

Application Number Title Priority Date Filing Date
FR778512D Expired FR778512A (en) 1933-09-25 1934-09-15 Air delivery device for ventilating shelters or rooms to protect against harmful gases

Country Status (1)

Country Link
FR (1) FR778512A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2835273A1 (en) * 1977-09-09 1979-03-22 Gen Motors Corp VACUUM PUMP
RU2630282C1 (en) * 2016-07-22 2017-09-06 Левон Мурадович Мурадян Membrane compressor unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2835273A1 (en) * 1977-09-09 1979-03-22 Gen Motors Corp VACUUM PUMP
RU2630282C1 (en) * 2016-07-22 2017-09-06 Левон Мурадович Мурадян Membrane compressor unit

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