US3930754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable water sampling apparatus
Assignee: Universal Oil Products Co
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Filing: 1974-12-23
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Granted: 1976-01-06
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Expires: 1994-12-23
Abstract
Abstract Portable, self powered water pumping apparatus for use in sampling water in remotely located wells comprises a wheeled hose reel cart which supports a long length of plastic hose or tubing. The tubing has a small diameter length of inner tubing telescoped inside itself throughout most of its length. The inner tubing passes through the wall of the outer tubing near the upper end thereof and is connected to a pressurized cylinder of gas such as a standard 14 oz. propane gas cylinder. When the lower ends of the tubes are well submerged beneath the water level in a well, admission of gas to the inner tube at its upper end will force water up through an annular space between the tubes and out the upper end of the outer tube where it can be collected. A channeled plug at the bottom of the tubes prevents the tubes from collapsing, helps to keep them straight and together as they are lowered into the well and provides partial support for a weight hanging from the bottom of the tubes.
Inventors
- 👤 Joe L. Mogg
- 👤 Rueben E. Paulson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:14
CPC Classifications
E; E03; E03B; E03B3/00; E03B3/06; E03B3/08; E21; E21B; E21B17/00; E21B17/20; E21B17/203; E21B49/00; G; G01; G01N; G01N1/00; G01N1/02; G01N1/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
228 words
A portable water pumping apparatus for sampling water from a well comprising: a storage reel having a hub and side flanges and storing a pair of elongated, flexible, telescopically positioned, radially spaced inner and outer tubing members and for supporting the upper end portion of each of said tubing members; handle means on said storage reel for reeling and unreeling the lower end portion of said tubing members into a well; a cylinder of pressurized gas and complementary means on said cylinder and on the upper end portion of the inner tubing member for attaching said cylinder to the upper end of said inner tubing member, valve means for controlling the flow of gas from said cylinder into said inner tubing member; weight means attached to said outer tubing member at its lower end portion; the lower end portions of the inner and outer tubing member communicating with each other, means communicating the space between the inner and outer tubing members with water to be pumped; and discharge opening means at the upper end of the outer tubing member for discharging water forced up through the space between the inner and outer tubing members by gas passing down through the lower end portion of said inner tubing member from said cylinder when the lower end portion of each tubing member is submerged beneath the water in a well.
Claim 2
Dependent Claim
228 words
A portable water pumping apparatus for sampling water from a well comprising: a storage reel having a hub and side flanges and storing a pair of elongated, flexible, telescopically positioned, radially spaced inner and outer tubing members and for supporting the upper end portion of each of said tubing members; handle means on said storage reel for reeling and unreeling the lower end portion of said tubing members into a well; a cylinder of pressurized gas and complementary means on said cylinder and on the upper end portion of the inner tubing member for attaching said cylinder to the upper end of said inner tubing member, valve means for controlling the flow of gas from said cylinder into said inner tubing member; weight means attached to said outer tubing member at its lower end portion; the lower end portions of the inner and outer tubing member communicating with each other, means communicating the space between the inner and outer tubing members with water to be pumped; and discharge opening means at the upper end of the outer tubing member for discharging water forced up through the space between the inner and outer tubing members by gas passing down through the lower end portion of said inner tubing member from said cylinder when the lower end portion of each tubing member is submerged beneath the water in a well.
Claim 3
Dependent Claim
33 words
The water pumping apparatus of claim 1 wherein the upper end of said inner tubing member passes through the wall of said outer tubing member at a location spaced from the end thereof.
Claim 4
Dependent Claim
39 words
The water pumping apparatus of claim 1 wherein a plug member is fastened to the lower ends of said inner and outer tubing members to prevent relative movement between said tubing members and to maintain radial spacing between them.
Claim 5
Dependent Claim
36 words
The water pumping apparatus of claim 3 wherein the means communicating the space between the inner and outer tubing members with water to be pumped comprises longitudinal grooves in the peripheral surface of said plug member.
Claim 6
Dependent Claim
39 words
The water pumping apparatus of claim 4 wherein said weight means is attached to said outer tubing member by a fastener which passes through the wall of said tubing and engages the walls of aperture means in said plug.
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) | 1979-01-05 | 1979-07-07 | 1980-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-05 | 1983-07-07 | 1984-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-05 | 1987-07-07 | 1988-01-06 | $7700.00 | Window Closed / Lapsed |