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 wellsInfo
- 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
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.
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) |
-
1947
- 1947-02-13 GB GB414547A patent/GB635772A/en not_active Expired
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