Patent US4828047A successfully refreshed from Google Patents.
US4828047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soil sampler
Assignee: Individual
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Filing: 1988-03-14
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Granted: 1989-05-09
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Expires: 2008-03-14
Abstract
Abstract This invention relates to a method and apparatus for collecting subsamples of soils to be tested for infestation and nutrient content. The apparatus includes a sampling tube which is mounted on a collecting wheel which is mounted on a frame. During operation, the apparatus is lifted off the ground. To take a sample, the apparatus is lowered such that the wheel makes contact with the ground. This causes the wheel to rotate, forcing the sampling probe into the ground. The sample empties into the interior of the wheel where it mixes. The mixed sample is later removed and boxed for testing.
Inventors
- 👤 Charles M. Rogerson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:18
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/04; G01N1/08
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
157 words
An apparatus for collecting samples of topsoil, attachable to a vehicle, comprising: a. a frame having means for attachment to a vehicle; b. an axle rotatably mounted on said frame; c. a collecting wheel secured to said axle to cause said axle to rotate when said wheel is in contact with the ground; d. a sampling tube, connected at one end to said wheel and the other end extending generally outward, for collecting topsoil samples when said wheel is in contact with the ground, where the connection of said tube to said wheel has channel allowing the sample to dump into an interior cavity of said wheel; e. a door on said wheel for removing collected sampled from interior of wheel; and f. a weight attached to interior wall of said wheel, being attached at right angle of said tube, causing said tube to assume horizontal resting position when said wheel is not in contact with ground.
Claim 2
Independent Claim
157 words
An apparatus for collecting samples of topsoil, attachable to a vehicle, comprising: a. a frame having means for attachment to a vehicle; b. an axle rotatably mounted on said frame; c. a collecting wheel secured to said axle to cause said axle to rotate when said wheel is in contact with the ground; d. a sampling tube, connected at one end to said wheel and the other end extending generally outward, for collecting topsoil samples when said wheel is in contact with the ground, where the connection of said tube to said wheel has channel allowing the sample to dump into an interior cavity of said wheel; e. a door on said wheel for removing collected sampled from interior of wheel; and f. a weight attached to interior wall of said wheel, being attached at right angle of said tube, causing said tube to assume horizontal resting position when said wheel is not in contact with ground.
Claim 3
Dependent Claim
25 words
An apparatus as recited in claim 1, further comprising: a weight rack attached to said frame for placing additional weight when sampling in hard soil.
Claim 4
Dependent Claim
19 words
An apparatus as recited in claim 1, wherein: said tube is between about 4 to 8 inches in length.
Claim 5
Dependent Claim
19 words
An apparatus as recited in claim 3, wherein: said tube is between about 1 to 3 inches in width.
Claim 6
Dependent Claim
26 words
An apparatus as recited in claim 1, further comprising: three hitch points for attachment of said frame to the three-point, quick hook-up system of a tractor.
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) | 1992-05-08 | 1992-11-07 | 1993-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-08 | 1996-11-07 | 1997-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-08 | 2000-11-07 | 2001-05-09 | $7700.00 | Window Closed / Lapsed |