US3647230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well pipe seal
Assignee: Individual
•
Filing: 1969-07-24
•
Granted: 1972-03-07
•
Expires: 1989-07-24
Abstract
Abstract The disclosure is of a seal to be used in a well immediately above a pump and at or below the normal level of the water in the well casing to prevent the movement of water and air downwardly past the seal into the area of the pump. The seal is designed to permit the necessary service connections to be passed through it and then adjusted to tightly seal about these connections before installation of the seal in the well.
Inventors
- 👤 William L Smedley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:36
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3204; F16J15/3228; E; E21; E21B; E21B33/00; E21B33/10; E21B33/12
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
157 words
A well seal for submersible pumps installed below water level in a well casing, said seal comprising an upper plate and a lower plate; an annular compressible sealing gasket between said plates; said gasket being circular and having an outside diameter greater than said plates and adapted to become cup-shaped upon insertion in the well casing; a pipe rigidly connected to and forming a watertight seal with one of said plates and extending through said gasket and the other of said plates and projecting both above and below said plates, said pipe being concentric of said plates and gasket; at least one aperture in each of said plates and said gasket, said apertures being aligned for passage therethrough of an energy conductor for the pump; means for moving said plates toward each other to compress said gasket and cause it to migrate into the energy conductor aperture to form a watertight seal about a conductor passing therethrough.
Claim 2
Dependent Claim
157 words
A well seal for submersible pumps installed below water level in a well casing, said seal comprising an upper plate and a lower plate; an annular compressible sealing gasket between said plates; said gasket being circular and having an outside diameter greater than said plates and adapted to become cup-shaped upon insertion in the well casing; a pipe rigidly connected to and forming a watertight seal with one of said plates and extending through said gasket and the other of said plates and projecting both above and below said plates, said pipe being concentric of said plates and gasket; at least one aperture in each of said plates and said gasket, said apertures being aligned for passage therethrough of an energy conductor for the pump; means for moving said plates toward each other to compress said gasket and cause it to migrate into the energy conductor aperture to form a watertight seal about a conductor passing therethrough.
Claim 3
Dependent Claim
20 words
A well seal as described in claim 1 wherein said pipe is rigidly connected to the lower of said plates.
Claim 4
Dependent Claim
54 words
A well seal as described in claim 1 wherein said aperture in said gasket is larger than the aligned apertures in said plates; a compressible grommet larger than the aligned apertures in said plates seated in said aperture in said gasket having a central opening therethrough smaller than the aligned apertures in said plates.
Claim 5
Dependent Claim
49 words
A well seal as described in claim 3 wherein said grommet has an axial length greater than the thickness of said gasket whereby said grommet is compressed both radially and axially as said plates are moved toward each other to increase the sealing effect about a conductor passing therethrough.
Claim 6
Dependent Claim
40 words
A well seal as described in claim 4 wherein the ends of said grommet projecting beyond the faces of said gasket are frustoconical in shape with the ends thereof sloped radially inwardly and away from the faces of said gasket.
Claim 7
Dependent Claim
32 words
A well seal as described in claim 1 wherein each of said plates and said gasket has a second aperture therethrough, said apertures being aligned to receipt a water treatment conduit therethrough.
Claim 8
Dependent Claim
31 words
A seal as described in claim 1 wherein the peripheral edge of said gasket is chamfered downwardly and inwardly to provide a narrow lip adjacent the lower face of said gasket.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |