Patent US3789671A successfully refreshed from Google Patents.
US3789671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Particulate material sampling device
Assignee: Individual
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Filing: 1971-10-29
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Granted: 1974-02-05
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Expires: 1991-10-29
Abstract
Abstract This invention is a device for removing a sample of particulate material from predetermined locations in the mass of said material.
Inventors
- 👤 H Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:38
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/04; G01N1/08; G01N33/00; G01N33/0091; G01N1/10; G01N1/12; G01N2001/1006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
238 words
A sample probe device comprising an elongated support pole, a support arm having an inner and outer end, said support arm being pivotally connected to said support pole at the inner end thereof, an elongated hollow probe pivotally connected to the outer end of said support arm, said probe having an opening into the interior thereof adjacent each end of said probe, a sample container including a sample chamber and means to trap said sample therein and means to remove sample material from said container, vacuum conduit means connecting the end opening of said probe adjacent said outer end of support arm with said sample container, separate hydraulic means to move said support arm along the longitudinal axis of said support pole and rotate said support arm about said support pole, and suction means actuated by means responding to a pressure differential in the hydraulic means upon actuation by said hydraulic means to move the support arm about said support pole to draw a vacuum through said probe, conduit means, and said sample chamber and to continue to draw a vacuum within said sample container when the sample chamber of said container is filled with sampled material whereby when said probe is in selected predetermined locations with respect to the mass thereof said sample is drawn through said probe into said conduit means and therethrough so as to be trapped into the sample chamber of said sample container.
Claim 2
Dependent Claim
238 words
A sample probe device comprising an elongated support pole, a support arm having an inner and outer end, said support arm being pivotally connected to said support pole at the inner end thereof, an elongated hollow probe pivotally connected to the outer end of said support arm, said probe having an opening into the interior thereof adjacent each end of said probe, a sample container including a sample chamber and means to trap said sample therein and means to remove sample material from said container, vacuum conduit means connecting the end opening of said probe adjacent said outer end of support arm with said sample container, separate hydraulic means to move said support arm along the longitudinal axis of said support pole and rotate said support arm about said support pole, and suction means actuated by means responding to a pressure differential in the hydraulic means upon actuation by said hydraulic means to move the support arm about said support pole to draw a vacuum through said probe, conduit means, and said sample chamber and to continue to draw a vacuum within said sample container when the sample chamber of said container is filled with sampled material whereby when said probe is in selected predetermined locations with respect to the mass thereof said sample is drawn through said probe into said conduit means and therethrough so as to be trapped into the sample chamber of said sample container.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |