FR379896A - Device for making watertight and for assembling ventilation pipes used in mines - Google Patents

Device for making watertight and for assembling ventilation pipes used in mines

Info

Publication number
FR379896A
FR379896A FR379896DA FR379896A FR 379896 A FR379896 A FR 379896A FR 379896D A FR379896D A FR 379896DA FR 379896 A FR379896 A FR 379896A
Authority
FR
France
Prior art keywords
mines
pipes used
ventilation pipes
making watertight
assembling 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
Other languages
French (fr)
Inventor
Theodor Weiner
Josef Petersitzky
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
Application granted granted Critical
Publication of FR379896A publication Critical patent/FR379896A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • E21F1/06—Duct connections

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)
FR379896D 1907-07-13 1907-07-13 Device for making watertight and for assembling ventilation pipes used in mines Expired FR379896A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR379896T 1907-07-13

Publications (1)

Publication Number Publication Date
FR379896A true FR379896A (en) 1907-11-21

Family

ID=1426148

Family Applications (1)

Application Number Title Priority Date Filing Date
FR379896D Expired FR379896A (en) 1907-07-13 1907-07-13 Device for making watertight and for assembling ventilation pipes used in mines

Country Status (1)

Country Link
FR (1) FR379896A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2781205A (en) * 1954-05-10 1957-02-12 Rohr Aircraft Corp Sealed flexible duct joint
US2856207A (en) * 1956-03-05 1958-10-14 Rohr Aircraft Corp Duct with resiliently biased ball and socket joint

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2781205A (en) * 1954-05-10 1957-02-12 Rohr Aircraft Corp Sealed flexible duct joint
US2856207A (en) * 1956-03-05 1958-10-14 Rohr Aircraft Corp Duct with resiliently biased ball and socket joint

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