CA956231A - Multiple element swab cup having uniform ratio of length to cross-sectional thickness - Google Patents

Multiple element swab cup having uniform ratio of length to cross-sectional thickness

Info

Publication number
CA956231A
CA956231A CA142,416A CA142416A CA956231A CA 956231 A CA956231 A CA 956231A CA 142416 A CA142416 A CA 142416A CA 956231 A CA956231 A CA 956231A
Authority
CA
Canada
Prior art keywords
length
cross
sectional thickness
multiple element
uniform ratio
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
CA142,416A
Other versions
CA142416S (en
Inventor
Henry W. Blackwell
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.)
Dresser Industries Inc
Original Assignee
Dresser Industries Inc
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 Dresser Industries Inc filed Critical Dresser Industries Inc
Application granted granted Critical
Publication of CA956231A publication Critical patent/CA956231A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J1/00—Pistons; Trunk pistons; Plungers
    • F16J1/005—Pistons; Trunk pistons; Plungers obtained by assembling several pieces
    • F16J1/006—Pistons; Trunk pistons; Plungers obtained by assembling several pieces of different materials
    • 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
    • E21B37/00—Methods or apparatus for cleaning boreholes or wells
    • E21B37/10—Well swabs

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Buffer Packaging (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Springs (AREA)
CA142,416A 1971-06-28 1972-05-17 Multiple element swab cup having uniform ratio of length to cross-sectional thickness Expired CA956231A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15724471A 1971-06-28 1971-06-28
US19229571A 1971-10-26 1971-10-26

Publications (1)

Publication Number Publication Date
CA956231A true CA956231A (en) 1974-10-15

Family

ID=26853942

Family Applications (1)

Application Number Title Priority Date Filing Date
CA142,416A Expired CA956231A (en) 1971-06-28 1972-05-17 Multiple element swab cup having uniform ratio of length to cross-sectional thickness

Country Status (4)

Country Link
AR (1) AR197681A1 (en)
CA (1) CA956231A (en)
DE (1) DE2230968A1 (en)
FR (1) FR2143811A1 (en)

Also Published As

Publication number Publication date
DE2230968A1 (en) 1973-01-11
FR2143811A1 (en) 1973-02-09
AR197681A1 (en) 1974-04-30

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