Patent US3860079A successfully refreshed from Google Patents.
Patent US5129757A successfully refreshed from Google Patents.
US5129757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water removal system
Assignee: Individual
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Filing: 1991-04-15
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Granted: 1992-07-14
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Expires: 2011-04-15
Abstract
Abstract The invention is a water remover-soil stabilizer, comprised of PVC pipes assembled in a polygonal shape with a discharge pipe at an upper end and connected to a water withdrawal pump. Water is admitted to the lower, horizontal pipe, through a plurality of extremely narrow slits, longitudinally spaced, and laterally extending circumferentially therein which render the section water pervious. After the pit is dug, the invention is inserted into the pit and the pumping is started. The invention withdraws only the water since the width of the slits is less than the diameter of the average sized sugar-sand grain.
Inventors
- 👤 Kenneth O. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:54
CPC Classifications
E; E02; E02B; E02B11/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
136 words
A polygonal shaped assembly of fluid conducting conduits for removing water and stabilizing the soil in a ground excavation comprising: water pervious means spread out horizontally on the bottom of said excavation, said water pervious means having; a first and second end, a plurality of rows of groups of narrow slits, longitudinally spaced, and laterally extending circumferentially therein, said slits providing communication between the exterior and the interior of said means, two vertical riser means having top and bottom ends, said bottom ends affixed to said water pervious means at each of said first and second ends, and water imperforate means extending horizontally to said excavation and affixed at the top ends of said vertical riser means thereby forming a polygonal shape, and having a vertical discharge conduit with means for attaching a water withdrawal pump.
Claim 2
Dependent Claim
136 words
A polygonal shaped assembly of fluid conducting conduits for removing water and stabilizing the soil in a ground excavation comprising: water pervious means spread out horizontally on the bottom of said excavation, said water pervious means having; a first and second end, a plurality of rows of groups of narrow slits, longitudinally spaced, and laterally extending circumferentially therein, said slits providing communication between the exterior and the interior of said means, two vertical riser means having top and bottom ends, said bottom ends affixed to said water pervious means at each of said first and second ends, and water imperforate means extending horizontally to said excavation and affixed at the top ends of said vertical riser means thereby forming a polygonal shape, and having a vertical discharge conduit with means for attaching a water withdrawal pump.
Claim 3
Dependent Claim
32 words
A polygonal shaped assembly of fluid conducting conduits according to claim 1, wherein said water pervious means consists of 11/4" PVC pipe and said slits are formed with a 0.009 gage saw.
Claim 4
Dependent Claim
44 words
A polygonal shaped assembly of fluid conducting conduits according to claim 2, wherein said slits are spaced approximately 1/8" apart from each other along the entire length of said water pervious means in three rows of 41/4" sections spaced approximately 1 5/16" between sections.
Claim 5
Dependent Claim
168 words
A polygonal shaped assembly of fluid conducting conduits for removing water and stabilizing the soil in a ground excavation comprising: water pervious means extending horizontally to said excavation, said water pervious means consisting of 11/4" PVC and having; a first and a second end each having a 90° elbow solvent-welded thereto, and a plurality of rows of 0.009 gage slits, longitudinally spaced, and laterally extending circumferentially therein, said slits providing communication between the exterior and the interior of said water pervious means, two vertical risers each having a top and a bottom end, said bottom ends being solvent-welded to said 90° elbows at each end of said water pervious means, a 90° elbow solvent-welded at each of said top ends of said risers, water imperforate means extending horizontally to said excavation, and solvent-welded to each of said 90° elbows located at said top of said risers, thereby forming a polygonal shape, and having a vertical discharge conduit with a transition coupling means for attaching a water withdrawal pump.
Claim 6
Dependent Claim
168 words
A polygonal shaped assembly of fluid conducting conduits for removing water and stabilizing the soil in a ground excavation comprising: water pervious means extending horizontally to said excavation, said water pervious means consisting of 11/4" PVC and having; a first and a second end each having a 90° elbow solvent-welded thereto, and a plurality of rows of 0.009 gage slits, longitudinally spaced, and laterally extending circumferentially therein, said slits providing communication between the exterior and the interior of said water pervious means, two vertical risers each having a top and a bottom end, said bottom ends being solvent-welded to said 90° elbows at each end of said water pervious means, a 90° elbow solvent-welded at each of said top ends of said risers, water imperforate means extending horizontally to said excavation, and solvent-welded to each of said 90° elbows located at said top of said risers, thereby forming a polygonal shape, and having a vertical discharge conduit with a transition coupling means for attaching a water withdrawal pump.
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) | 1995-07-14 | 1996-01-13 | 1996-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-14 | 2000-01-13 | 2000-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-14 | 2004-01-13 | 2004-07-14 | $7700.00 | Window Closed / Lapsed |