US3158030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical coal sampler
Assignee: Tennessee Valley Authority
•
Filing: 1960-10-13
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Granted: 1964-11-24
•
Expires: 1980-10-13
Abstract
No abstract record available.
Inventors
- 👤 Cross Gordon Buford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:26
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/04; G01N1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A CORE-TYPE COAL-SAMPLING APPARATUS COMPRISING A VERTICAL SAMPLER TUBE, RECTANGULAR IN HORIZONTAL CROSS SECTION; RIGID CUTTING MEANS SECURED TO THE BOTTOM EDGE OF SAID SAMPLER TUBE, SAID CUTTING MEANS JUXTAPOSED TO THE PERIPHERAL SURFACE OF SAID SAMPLER TUBE; AND CORE-KEEPER MEANS TO SECURE COAL CORES THEREIN FOR REMOVAL WITH SAID SAMPLER TUBE, SAID CORE-KEEPER MEANS OPERATIVELY MOUNTED CONTIGUOUS TO THE CORE-RECEIVING END OF SAID SAMPLER TUBE AND COMPRISING CLAMS HINGEDLY MOUNTED IN APERTURES FORMED IN TWO OPPOSITE WALLS OF SAID SAMPLER TUBE FOR OPERATION BY REMOTELY CONTROLLED OPERATIVELY ENGAGED CLOSING MEANS, SAID CLAMS, WHEN IN THE OPEN POSITION, AND SAID CLOSING MEANS DISPOSED OUTWARDLY FROM SAID VERTICAL SAMPLER TUBE WALLS.
Claim 2
Dependent Claim
110 words
A CORE-TYPE COAL-SAMPLING APPARATUS COMPRISING A VERTICAL SAMPLER TUBE, RECTANGULAR IN HORIZONTAL CROSS SECTION; RIGID CUTTING MEANS SECURED TO THE BOTTOM EDGE OF SAID SAMPLER TUBE, SAID CUTTING MEANS JUXTAPOSED TO THE PERIPHERAL SURFACE OF SAID SAMPLER TUBE; AND CORE-KEEPER MEANS TO SECURE COAL CORES THEREIN FOR REMOVAL WITH SAID SAMPLER TUBE, SAID CORE-KEEPER MEANS OPERATIVELY MOUNTED CONTIGUOUS TO THE CORE-RECEIVING END OF SAID SAMPLER TUBE AND COMPRISING CLAMS HINGEDLY MOUNTED IN APERTURES FORMED IN TWO OPPOSITE WALLS OF SAID SAMPLER TUBE FOR OPERATION BY REMOTELY CONTROLLED OPERATIVELY ENGAGED CLOSING MEANS, SAID CLAMS, WHEN IN THE OPEN POSITION, AND SAID CLOSING MEANS DISPOSED OUTWARDLY FROM SAID VERTICAL SAMPLER TUBE WALLS.
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) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |