Wells – Above ground apparatus – With assembly or disassembly means
Patent
1976-12-06
1977-11-01
Leppink, James A.
Wells
Above ground apparatus
With assembly or disassembly means
166 88, 277101, 285DIG19, E21B 3303
Patent
active
040561445
ABSTRACT:
This is an improvement in Wellstein's U.S. Pat. No. 3,812,910 issued May 28, 1974 comprising generally: an improved shaped frustoconical seat for the saddle contoured gasket or seat in the washer or nut for better sealing the outside of the well casing with the outside of the nipple that extends through the hole therein for withstanding higher pressures; and/or the employment of a pair of gaskets inside and outside the casing surrounding the nipple and contoured to the interior and exterior walls of the casing, also for insuring better sealing.
The nipple portion of the hanger member has its outer end externally threaded for a nut member which may contain an internal angular frustoconical groove or seat for a saddle contoured gasket which presses the gasket both against the outside cylindrical surface of the nipple outside the outer wall of the casing and against the outer wall of the casing, or the nut may press against a washer which contains such a groove or seat, and may also include a second gasket between the nut and the washer.
REFERENCES:
patent: 2343235 (1944-02-01), Bashank
patent: 2689611 (1954-09-01), Martinson
patent: 2918972 (1959-12-01), Tubbs
patent: 2946385 (1960-07-01), Dicken
patent: 2992022 (1961-07-01), Risley et al.
patent: 3430697 (1969-03-01), Wellstein
patent: 3805891 (1974-04-01), Reinhard et al.
patent: 3812910 (1974-05-01), Wellistien
patent: 3841667 (1974-10-01), Sands
patent: 3847217 (1974-11-01), Kramer et al.
patent: 3958632 (1976-05-01), Buchman et al.
Kirk Hugh Adam
Leppink James A.
LandOfFree
Positive seal pitless well adapter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Positive seal pitless well adapter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Positive seal pitless well adapter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3367