US3341880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tank cleaning apparatus
Assignee: Sunoco Inc
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Filing: 1965-08-18
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Granted: 1967-09-19
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Expires: 1985-08-18
Abstract
No abstract record available.
Inventors
- 👤 Einar T Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:36
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/08; B08B9/093
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
IN APPARATUS FOR CLEANING A TANK THROUGH AN OPENING NEAR THE TOP THEREOF, A SUBSTANTIALLY RIGID STANDPIPE ADAPTED TO BE LOWERED THROUGH SAID OPENING INTO CONTACT WITH THE BOTTOM OF THE TANK, AN ELONGATED HOSE GUIDING MEMBER HAVING ONE END THEREOF PIVOTALLY CONNECTED TO SAID PIPE WITHIN THE SAME AT A LOCATION NEAR THE LOWER END THEREOF, SAID GUIDING MEMBER BEING CONSTRUCTED AND ARRANGED TO SWING OUTWARDLY WITH RESPECT TO SAID PIPE BEYOND THE CONFINES THEREOF AND TO EXTEND DOWNWARDLY FROM ITS PIVOT AT AN ARCUATE ANGLE TO THE AXIS OF SAID PIPE WHEN THE FREE END OF SAID MEMBER AND THE LOWER END OF SAID PIPE ARE IN CONTACT WITH THE TANK BOTTOM; AND MEANS FOR RESILIENTLY BIASING SAID MEMBER TO SWING OUTWARDLY ABOUT ITS PIVOT, AWAY FROM SAID PIPE.
Claim 2
Dependent Claim
131 words
IN APPARATUS FOR CLEANING A TANK THROUGH AN OPENING NEAR THE TOP THEREOF, A SUBSTANTIALLY RIGID STANDPIPE ADAPTED TO BE LOWERED THROUGH SAID OPENING INTO CONTACT WITH THE BOTTOM OF THE TANK, AN ELONGATED HOSE GUIDING MEMBER HAVING ONE END THEREOF PIVOTALLY CONNECTED TO SAID PIPE WITHIN THE SAME AT A LOCATION NEAR THE LOWER END THEREOF, SAID GUIDING MEMBER BEING CONSTRUCTED AND ARRANGED TO SWING OUTWARDLY WITH RESPECT TO SAID PIPE BEYOND THE CONFINES THEREOF AND TO EXTEND DOWNWARDLY FROM ITS PIVOT AT AN ARCUATE ANGLE TO THE AXIS OF SAID PIPE WHEN THE FREE END OF SAID MEMBER AND THE LOWER END OF SAID PIPE ARE IN CONTACT WITH THE TANK BOTTOM; AND MEANS FOR RESILIENTLY BIASING SAID MEMBER TO SWING OUTWARDLY ABOUT ITS PIVOT, AWAY FROM SAID PIPE.
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) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |