US3348419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solids sampling apparatus
Assignee: Universal Oil Products Co
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Filing: 1964-12-28
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Granted: 1967-10-24
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Expires: 1984-12-28
Abstract
No abstract record available.
Inventors
- 👤 George E Addison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:33
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/0015; B01J8/002; B01J8/003; G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
APPARATUS FOR PERIODICALLY WITHDRAWING SAMPLE OF SOLID PARTICLE-FORM MATERIAL FROM A CLOSE VESSEL CONTAINING A FIXED BED OF SUCH MATERIAL WHICH COMPRISED AN ELONGATED CASING EXTENDING THROUGH AN OPENING IN A WALL OF SAID VESSEL AND UPWARDLY INTO SAID BED; MEANS SEALABLY SECURING THE LOWER END PORTION OF THE CASING OF SAID VESSEL WALL; AN ELONGATED HOLLOW TUBULAR ROTOR ROTATABLY MOUNTED WITHIN THE CASING AND EXTENDING DOWNWARDLY THERETHROUGH BEYOND SAID SECURING MEANS TO THE EXTERIOR OF THE CASING AND SAID VESSEL; A PAIR OF BLOCK VALVES, SPACED APART ALONG THE LONGITUDINAL AXIS OF SAID HOLLOW ROTOR, AND CONNECTED IN SERIAL FLOW COMMUNICATION INTO AND CARRIED BY THE LOWER EXTERNAL PORTION OF SAID HOLLOW ROTOR; A FIRST OPENING FORMED IN THE CASING WALL WITHIN SAID VESSEL; A SECOND OPENING FORMED IN THE ROTOR WALL AND ADAPTED TO REGISTER WITH SAID FIRST OPENING ONLY DURING A LIMITED ANGULAR DISPLACEMENT OF THE ROTOR, CORRESPONDING TO ITS SAMPLE WITH-
Claim 2
Dependent Claim
155 words
APPARATUS FOR PERIODICALLY WITHDRAWING SAMPLE OF SOLID PARTICLE-FORM MATERIAL FROM A CLOSE VESSEL CONTAINING A FIXED BED OF SUCH MATERIAL WHICH COMPRISED AN ELONGATED CASING EXTENDING THROUGH AN OPENING IN A WALL OF SAID VESSEL AND UPWARDLY INTO SAID BED; MEANS SEALABLY SECURING THE LOWER END PORTION OF THE CASING OF SAID VESSEL WALL; AN ELONGATED HOLLOW TUBULAR ROTOR ROTATABLY MOUNTED WITHIN THE CASING AND EXTENDING DOWNWARDLY THERETHROUGH BEYOND SAID SECURING MEANS TO THE EXTERIOR OF THE CASING AND SAID VESSEL; A PAIR OF BLOCK VALVES, SPACED APART ALONG THE LONGITUDINAL AXIS OF SAID HOLLOW ROTOR, AND CONNECTED IN SERIAL FLOW COMMUNICATION INTO AND CARRIED BY THE LOWER EXTERNAL PORTION OF SAID HOLLOW ROTOR; A FIRST OPENING FORMED IN THE CASING WALL WITHIN SAID VESSEL; A SECOND OPENING FORMED IN THE ROTOR WALL AND ADAPTED TO REGISTER WITH SAID FIRST OPENING ONLY DURING A LIMITED ANGULAR DISPLACEMENT OF THE ROTOR, CORRESPONDING TO ITS SAMPLE WITH-
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) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |