FR1459181A - Improvements to ventilation ducts - Google Patents

Improvements to ventilation ducts

Info

Publication number
FR1459181A
FR1459181A FR33674A FR33674A FR1459181A FR 1459181 A FR1459181 A FR 1459181A FR 33674 A FR33674 A FR 33674A FR 33674 A FR33674 A FR 33674A FR 1459181 A FR1459181 A FR 1459181A
Authority
FR
France
Prior art keywords
ventilation ducts
ducts
ventilation
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
FR33674A
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.)
Charbonnages de France CDF
Original Assignee
Charbonnages de France CDF
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 Charbonnages de France CDF filed Critical Charbonnages de France CDF
Priority to FR33674A priority Critical patent/FR1459181A/en
Application granted granted Critical
Publication of FR1459181A publication Critical patent/FR1459181A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
    • E21F1/04—Air ducts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
FR33674A 1965-10-04 1965-10-04 Improvements to ventilation ducts Expired FR1459181A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR33674A FR1459181A (en) 1965-10-04 1965-10-04 Improvements to ventilation ducts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR33674A FR1459181A (en) 1965-10-04 1965-10-04 Improvements to ventilation ducts

Publications (1)

Publication Number Publication Date
FR1459181A true FR1459181A (en) 1966-04-29

Family

ID=8589655

Family Applications (1)

Application Number Title Priority Date Filing Date
FR33674A Expired FR1459181A (en) 1965-10-04 1965-10-04 Improvements to ventilation ducts

Country Status (1)

Country Link
FR (1) FR1459181A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2851936A1 (en) * 1978-12-01 1980-06-12 Bergwerksverband Gmbh COMPENSATING LUTTER

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2851936A1 (en) * 1978-12-01 1980-06-12 Bergwerksverband Gmbh COMPENSATING LUTTER
FR2444183A1 (en) * 1978-12-01 1980-07-11 Bergwerksverband Gmbh BALANCING NOZZLE FOR VENTILATION INSTALLATION.

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