Releasable air vent pipe for use on water well covers

Details Releasable air vent pipe for use on water well covers Releasable air vent pipe for use on water well covers

1989-09-18

1990-11-27

Neuder, William P.

Wells

Above ground apparatus

Cap or head pivotably attached to tube or casing

138 89, E21B 1702

Patent

active

049729055

ABSTRACT:
An air ventilation pipe for a well casing cover is comprised of a cylindrical externally screw-threaded socket which has a cylindrical externally screw-threaded portion projecting downwardly through the aperture in a well casing cover. An enlarged head at its inner part for the engagement of a wrench. A nut for securing a cylindrical tube within the socket. The socket and nut compress between them a metallic deformable ring into sealing relationship with the cylindrical tube.

REFERENCES:
patent: 830782 (1906-09-01), Gray
patent: 3917292 (1975-11-01), Martin
patent: 3963054 (1976-06-01), Martin
patent: 3998245 (1976-12-01), Martin
patent: 4124235 (1978-11-01), Grahl et al.

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