FR517819A - Method and device for the removal of coal using pressurized water - Google Patents

Method and device for the removal of coal using pressurized water

Info

Publication number
FR517819A
FR517819A FR517819A FR517819DA FR517819A FR 517819 A FR517819 A FR 517819A FR 517819 A FR517819 A FR 517819A FR 517819D A FR517819D A FR 517819DA FR 517819 A FR517819 A FR 517819A
Authority
FR
France
Prior art keywords
coal
removal
pressurized water
pressurized
water
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
FR517819A
Other languages
French (fr)
Inventor
Hermann Mack
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 FR517819A publication Critical patent/FR517819A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C37/00—Other methods or devices for dislodging with or without loading
    • E21C37/06—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole

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)
FR517819A 1917-07-29 1918-12-13 Method and device for the removal of coal using pressurized water Expired FR517819A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE517819X 1917-07-29

Publications (1)

Publication Number Publication Date
FR517819A true FR517819A (en) 1921-05-12

Family

ID=6549716

Family Applications (1)

Application Number Title Priority Date Filing Date
FR517819A Expired FR517819A (en) 1917-07-29 1918-12-13 Method and device for the removal of coal using pressurized water

Country Status (1)

Country Link
FR (1) FR517819A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3032067A (en) * 1960-03-18 1962-05-01 Fisher Governor Co Lock type excess flow valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3032067A (en) * 1960-03-18 1962-05-01 Fisher Governor Co Lock type excess flow valve

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