GB635772A - Improvements in and relating to free pistons for use in eduction pipes of apparatus for raising liquid in wells - Google Patents

Improvements in and relating to free pistons for use in eduction pipes of apparatus for raising liquid in wells

Info

Publication number
GB635772A
GB635772A GB414547A GB414547A GB635772A GB 635772 A GB635772 A GB 635772A GB 414547 A GB414547 A GB 414547A GB 414547 A GB414547 A GB 414547A GB 635772 A GB635772 A GB 635772A
Authority
GB
United Kingdom
Prior art keywords
piston
wells
relating
free pistons
released
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
GB414547A
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
Priority to GB414547A priority Critical patent/GB635772A/en
Publication of GB635772A publication Critical patent/GB635772A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
    • F04B47/12—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps having free plunger lifting the fluid to the surface

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

635,772. Piston packing. BROWN, N. F. Feb. 13, 1947, Nos. 4145, 11732 and 23313. [Class 122(i)] [Also in Group XXVIII] An oil well pump wherein the piston is held at the bottom of a well tube whilst a slug of oil is formed above it and then the holding means is released and the piston is raised by gas pressure. At the same time as the holding means are released, a piston 52 acts upon liquid trapped in the cylinder 50 and forces it through ports 49 to expand a resilient packing sleeve against the well tube 8. In an alternative arrangement, the packing sleeve is expanded by moving one end relatively to the other by mechanical means. Specifications 403391, 493,283, 584,410, 616,885, 616,887, [all in Group XXVIII], 635,771 and 635,772 are referred to.
GB414547A 1947-02-13 1947-02-13 Improvements in and relating to free pistons for use in eduction pipes of apparatus for raising liquid in wells Expired GB635772A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB414547A GB635772A (en) 1947-02-13 1947-02-13 Improvements in and relating to free pistons for use in eduction pipes of apparatus for raising liquid in wells

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB414547A GB635772A (en) 1947-02-13 1947-02-13 Improvements in and relating to free pistons for use in eduction pipes of apparatus for raising liquid in wells

Publications (1)

Publication Number Publication Date
GB635772A true GB635772A (en) 1950-04-19

Family

ID=9771594

Family Applications (1)

Application Number Title Priority Date Filing Date
GB414547A Expired GB635772A (en) 1947-02-13 1947-02-13 Improvements in and relating to free pistons for use in eduction pipes of apparatus for raising liquid in wells

Country Status (1)

Country Link
GB (1) GB635772A (en)

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