Wells – Processes – Operating valve – closure – or changeable restrictor in a well
Patent
1984-08-14
1986-06-17
Novosad, Stephen J.
Wells
Processes
Operating valve, closure, or changeable restrictor in a well
166 72, 166112, 137570, 417434, E21B 3406, F04B 3914
Patent
active
045950610
ABSTRACT:
A hollow T-shaped fitting is provided including a vertically straight first leg open at its upper and lower ends and a second horizontal lateral leg opening into and outwardly away from an intermediate height portion of the first leg. The outer end of the second leg may be supported from and open laterally into the lower end of a deep well delivery pipe extending upwardly from the deep well pump and a seal defining tubular sleeve valve member is slidingly telescoped in the first leg and spans across the end of the second leg opening into the first leg. The upper end of the sleeve valve member projects above the upper end of the first leg and is equipped with an end cap downwardly abuttingly engageable with the upper end of the first leg. The end cap is centrally apertured and a strong elongated flexible pull member passes downwardly through the cap and the sleeve valve member and has its lower end anchored relative to the pump assembly of the associated well. The pull member includes an abutment thereon at a point spaced upwardly along the pull member from the pump assembly a greater distance than the height of the cap above the pump assembly and the abutment is engageable with the cap to effect upward displacement thereof relative to the first leg upon an upward pull being applied to the pull member.
REFERENCES:
patent: 385104 (1884-06-01), Diffley
patent: 572959 (1896-12-01), Chapman
patent: 1066150 (1913-07-01), Reitz
patent: 1402826 (1922-01-01), Anderson
patent: 2663261 (1953-12-01), Gage
Jacobson Harvey B.
Kisliuk Bruce M.
Novosad Stephen J.
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