FR790191A - Improvements to electrically controlled fans - Google Patents

Improvements to electrically controlled fans

Info

Publication number
FR790191A
FR790191A FR790191DA FR790191A FR 790191 A FR790191 A FR 790191A FR 790191D A FR790191D A FR 790191DA FR 790191 A FR790191 A FR 790191A
Authority
FR
France
Prior art keywords
electrically controlled
controlled fans
fans
electrically
controlled
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)
Inventor
Daniel Evan Rogers
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.)
CROXTONS ENGINEERING Co L
Original Assignee
CROXTONS ENGINEERING Co L
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 CROXTONS ENGINEERING Co L filed Critical CROXTONS ENGINEERING Co L
Application granted granted Critical
Publication of FR790191A publication Critical patent/FR790191A/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
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/10—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air
    • F04D25/105—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air by changing rotor axis direction, e.g. oscillating fans

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
FR790191D 1934-05-18 1935-05-17 Improvements to electrically controlled fans Expired FR790191A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB790191X 1934-05-18

Publications (1)

Publication Number Publication Date
FR790191A true FR790191A (en) 1935-11-15

Family

ID=10502603

Family Applications (1)

Application Number Title Priority Date Filing Date
FR790191D Expired FR790191A (en) 1934-05-18 1935-05-17 Improvements to electrically controlled fans

Country Status (1)

Country Link
FR (1) FR790191A (en)

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