FR775694A - Dust deflector - Google Patents

Dust deflector

Info

Publication number
FR775694A
FR775694A FR775694DA FR775694A FR 775694 A FR775694 A FR 775694A FR 775694D A FR775694D A FR 775694DA FR 775694 A FR775694 A FR 775694A
Authority
FR
France
Prior art keywords
dust deflector
deflector
dust
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.)
KELLEY ATWELL DEV CORP
Original Assignee
KELLEY ATWELL DEV CORP
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 KELLEY ATWELL DEV CORP filed Critical KELLEY ATWELL DEV CORP
Application granted granted Critical
Publication of FR775694A publication Critical patent/FR775694A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
    • E21B21/015—Means engaging the bore entrance, e.g. hoods for collecting dust

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
FR775694D 1934-07-10 1934-07-10 Dust deflector Expired FR775694A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR775694T 1934-07-10

Publications (1)

Publication Number Publication Date
FR775694A true FR775694A (en) 1935-01-07

Family

ID=9200602

Family Applications (1)

Application Number Title Priority Date Filing Date
FR775694D Expired FR775694A (en) 1934-07-10 1934-07-10 Dust deflector

Country Status (1)

Country Link
FR (1) FR775694A (en)

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