Patent US2635428A successfully refreshed from Google Patents.
Patent EP0335341B1 successfully refreshed from Google Patents.
US4595061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deep well pipe water release valve
Assignee: Individual
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Filing: 1984-08-14
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Granted: 1986-06-17
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Expires: 2004-08-14
Abstract
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.
Inventors
- 👤 Thomas L. Underwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:48
CPC Classifications
E; E21; E21B; E21B34/00; E21B34/06; E21B34/14; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85978; Y10T137/86179
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
254 words
A deep well pipe water release valve including a valve assembly comprising a body defining an upright passage therethrough having upper and lower ends, said body including a lateral port having an inner end opening into said passage intermediate said upper and lower ends ans an outer end adapted for sealed communication with the interior of the lower end portion of a deep well delivery pipe disposed in a deep well, a valve member slidably received in said passage and upwardly displaceable from the latter, said valve member being shiftable in said passage to a position spanning across said port, seal means establishing a sliding fluidtight seal between said valve member and said body both above and below said port, and vertical pull means including a lower end terminal portion adapted for anchored securement to a motor and pump assembly within said deep well below said body and an intermediate height lower end portion above said lower terminal end portion operably connected to said valve member for upward displacement of the latter from the upper end of said passage upon an upward pull on the upper end portion of said pull member and with the operable connection of said pull member with said valve member being sufficiently spaced above said lower terminal end of said pull member to enable upward displacement of said valve member from the upper end of said passage before a continued upward pull on said pull member is effective to apply an upward pull on said motor and pump assembly.
Claim 2
Dependent Claim
254 words
A deep well pipe water release valve including a valve assembly comprising a body defining an upright passage therethrough having upper and lower ends, said body including a lateral port having an inner end opening into said passage intermediate said upper and lower ends ans an outer end adapted for sealed communication with the interior of the lower end portion of a deep well delivery pipe disposed in a deep well, a valve member slidably received in said passage and upwardly displaceable from the latter, said valve member being shiftable in said passage to a position spanning across said port, seal means establishing a sliding fluidtight seal between said valve member and said body both above and below said port, and vertical pull means including a lower end terminal portion adapted for anchored securement to a motor and pump assembly within said deep well below said body and an intermediate height lower end portion above said lower terminal end portion operably connected to said valve member for upward displacement of the latter from the upper end of said passage upon an upward pull on the upper end portion of said pull member and with the operable connection of said pull member with said valve member being sufficiently spaced above said lower terminal end of said pull member to enable upward displacement of said valve member from the upper end of said passage before a continued upward pull on said pull member is effective to apply an upward pull on said motor and pump assembly.
Claim 3
Dependent Claim
55 words
The release valve of claim 1 wherein said body comprises a hollow T-shaped tubular member including a first vertical leg having upper and lower ends and defining said passage and a second horizontal leg opening outwardly from and into said first leg intermediate the upper and lower ends thereof, said second leg defining said port.
Claim 4
Dependent Claim
95 words
The release valve assembly of claim 2 wherein said valve member comprises a subular member lengthwise disposed in said passage and having upper and lower end portions with the upper end portion of said tubular member projecting above the upper end of said first leg, the upper end portion of said tubular member including a centrally apertured end cap downwardly through which said pull means extends, said cap being downwardly abuttingly engageable with the upper end of said first leg to define a lower limit position of movement of said tubular member in said passage.
Claim 5
Dependent Claim
48 words
The release valve of claim 3 wherein said pull member comprises an elongated flexible tension member slidably received through said end cap and includes an abutment thereon below said end cap upwardly abuttingly engageable with the latter establishing a one-way connection between said pull member and said cap.
Claim 6
Dependent Claim
31 words
The release valve of claim 4 wherein said cap includes cylindrical wall portions disposed above the upper end of said tubular member having at least one radial vent port formed therein.
Claim 7
Dependent Claim
23 words
The release valve of claim 2 wherein said seal means comprises O rings carried by said tubular member above and below said port.
Claim 8
Dependent Claim
220 words
In combination with a deep well of the type including a deep well motor and pump assembly mounted in a lower portion of said well and including an upstanding delivery pipe having upper and lower end portions and projecting upwardly from said assembly to generally ground level, a valve body mounted on said lower end portion of said pipe above said motor and pump assembly and defining a substantially vertical passage therethrough having upper and lower ends, passage means communicating the interior of said delivery pipe with the interior of an intermediate portion of said vertical passage, a valve member slidably disposed in said vertical passage and upwardly removable from the upper end thereof, said valve member including seal means establishing a fluidtight seals between said valve member and said vertical passage at points spaced spaced therealong above and below said intermediate portion of said passage, elongate upstanding pull means including a lower end portion anchored relative to said assembly and an intermediate lower portion spaced above said pull means lower end portion operably engaged with said valve member, said pull means extending upwardly to a point adjacent the upper end of said well and being upwardly displaceable to successively upwardly displace said valve member from said passage and thereafter upwardly displace said motor and pump assembly within said well.
Claim 9
Dependent Claim
220 words
In combination with a deep well of the type including a deep well motor and pump assembly mounted in a lower portion of said well and including an upstanding delivery pipe having upper and lower end portions and projecting upwardly from said assembly to generally ground level, a valve body mounted on said lower end portion of said pipe above said motor and pump assembly and defining a substantially vertical passage therethrough having upper and lower ends, passage means communicating the interior of said delivery pipe with the interior of an intermediate portion of said vertical passage, a valve member slidably disposed in said vertical passage and upwardly removable from the upper end thereof, said valve member including seal means establishing a fluidtight seals between said valve member and said vertical passage at points spaced spaced therealong above and below said intermediate portion of said passage, elongate upstanding pull means including a lower end portion anchored relative to said assembly and an intermediate lower portion spaced above said pull means lower end portion operably engaged with said valve member, said pull means extending upwardly to a point adjacent the upper end of said well and being upwardly displaceable to successively upwardly displace said valve member from said passage and thereafter upwardly displace said motor and pump assembly within said well.
Claim 10
Dependent Claim
32 words
The combination of claim 7 wherein said valve member comprises an upstanding tubular member having upper and lower ends and said pull means extends downwardly through said tubular member and said passage.
Claim 11
Dependent Claim
43 words
The combination of claim 8 wherein the upper end of said tubular member projects above the upper end of said passage and includes an upper end cap, said upper end cap being centrally apertured, said pull means extending downwardly through said apertured cap.
Claim 12
Dependent Claim
34 words
The assembly of claim 7 wherein said pull means includes an elongated flexible tension member including a lost motion connection with said valve member and a fixed connection with said motor and pump assembly.
Claim 13
Dependent Claim
26 words
The assembly of claim 7 wherein said seal means comprises O-rings carried by said valve member above and below said intermediate portion of said vertical passage.
Claim 14
Independent Claim
196 words
The method of adapting a deep well pumping system for ease in upward retrieval of the pumping system from an associated well wherein the pumping system includes a deep well motor and pump assembly and a delivery pipe extending upwardly from said assembly at least substantially to ground level, said method comprising establishing a vertical passage closely adjacent the lower end portion of said delivery pipe above said assembly with an intermediate length portion of said passage in communication with the interior of said delivery pipe, providing a valve member slidably received within said passage, upwardly displaceable from the upper end of said passage and including spaced seal means establishing sliding fluid tight seals between said valve member and said passage above and below said intermediate length portion of said passage, providing an elongated flexible pull member having a lower end anchored relative to said assembly and a second lower portion thereof spaced above said lower end including a connection with said valve member such that an upward pull on the upper end of said pull member will first upwardly displace said valve member from said passage and thereafter upwardly displace said assembly and delivery pipe.
Claim 15
Independent Claim
196 words
The method of adapting a deep well pumping system for ease in upward retrieval of the pumping system from an associated well wherein the pumping system includes a deep well motor and pump assembly and a delivery pipe extending upwardly from said assembly at least substantially to ground level, said method comprising establishing a vertical passage closely adjacent the lower end portion of said delivery pipe above said assembly with an intermediate length portion of said passage in communication with the interior of said delivery pipe, providing a valve member slidably received within said passage, upwardly displaceable from the upper end of said passage and including spaced seal means establishing sliding fluid tight seals between said valve member and said passage above and below said intermediate length portion of said passage, providing an elongated flexible pull member having a lower end anchored relative to said assembly and a second lower portion thereof spaced above said lower end including a connection with said valve member such that an upward pull on the upper end of said pull member will first upwardly displace said valve member from said passage and thereafter upwardly displace said assembly and delivery pipe.
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) | 1989-06-16 | 1989-12-16 | 1990-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-16 | 1993-12-16 | 1994-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-16 | 1997-12-16 | 1998-06-17 | $7700.00 | Window Closed / Lapsed |