US3696873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soil sampling device
Assignee: Dow Chemical Co
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Filing: 1971-03-31
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Granted: 1972-10-10
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Expires: 1991-03-31
Abstract
Abstract Basic components of the device disclosed herein are a sample tube, driver sleeve, driver cap and driver head. The sample tube is a pipe which is split lengthwise into two semicircular sections. In assembled position, i.e. during the soil collecting function, the split sample tube is a unitary tube which fits inside a larger pipe that defines the driver sleeve. The driver cap is an internally threaded cup-shaped member with an upstanding solid stem thereon and a crosswise handle. The cap is secured to the upper end of the driver sleeve by external threads on the sleeve. The driver head is a one-piece member comprising a solid block, a hollow stem which fits over the solid stem of the driver cap, and loop-type handles. The loop handles enable the driver head to be lifted up and down, so that the driver stem can hammer down against the cap and thereby drive the sleeve and sample tube into the earth.
Inventors
- 👤 Gene A Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:13
CPC Classifications
E; E21; E21B; E21B49/00; E21B49/02; E21B11/00; E21B11/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
175 words
Apparatus for collecting samples of soil, which comprises, in combination: a. a driver sleeve defined by a tubular member having an upper and lower end, wherein an external fastening means is positioned slightly below the upper end and the lower end is adapted to be driven into the soil, b. a sample tube defined by at least two separate, semicircular tube sections which, in the assembled position on the apparatus, comprise a unitary tube, which is rotatable within said driver sleeve and is adapted to receive and retain a sample of soil, c. a driver cap defined by an inverted cup-shaped member which fits over the upper end of the driver sleeve and which engages the external fastening means of the sleeve, the cap including an upstanding solid stem positioned on the upper side thereof, d. a driver head defined by a solid block of material with a hollow stem portion which extends downwardly therefrom, the said hollow stem portion being adapted to fit over and slidingly engage the solid stem of the driver cap.
Claim 2
Dependent Claim
175 words
Apparatus for collecting samples of soil, which comprises, in combination: a. a driver sleeve defined by a tubular member having an upper and lower end, wherein an external fastening means is positioned slightly below the upper end and the lower end is adapted to be driven into the soil, b. a sample tube defined by at least two separate, semicircular tube sections which, in the assembled position on the apparatus, comprise a unitary tube, which is rotatable within said driver sleeve and is adapted to receive and retain a sample of soil, c. a driver cap defined by an inverted cup-shaped member which fits over the upper end of the driver sleeve and which engages the external fastening means of the sleeve, the cap including an upstanding solid stem positioned on the upper side thereof, d. a driver head defined by a solid block of material with a hollow stem portion which extends downwardly therefrom, the said hollow stem portion being adapted to fit over and slidingly engage the solid stem of the driver cap.
Claim 3
Dependent Claim
34 words
The apparatus of claim 1 wherein the external fastening means of the driver sleeve comprises external threads and the driver cap has internal screw threads which are adapted to threadably engage the sleeve threads.
Claim 4
Dependent Claim
46 words
The apparatus of claim 1 wherein the upper end of the unitary sample tube extends a short distance above the upper end of the driver sleeve, the said upper end including a continuous annular ridge adapted to seat against the upper end of the driver sleeve.
Claim 5
Dependent Claim
23 words
The apparatus of claim 1 wherein the lower end of the sample tube extends slightly below the lower end of the driver sleeve.
Claim 6
Dependent Claim
14 words
The apparatus of claim 1 in which the driver sleeve includes a handle means.
Claim 7
Dependent Claim
14 words
The apparatus of claim 1 in which the driver cap includes a handle means.
Claim 8
Dependent Claim
14 words
The apparatus of claim 1 in which the driver head includes a handle means.
References Cited (Backward Citations)
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US2416501A
Cited
US3036638A
Cited
US3095051A
Cited
US3187513A
Cited
US3515230A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |