US3326468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tank cleaning machine employing a piston actuated hydraulic clutch
Assignee: Cloud Co Inc
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Filing: 1965-03-19
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Granted: 1967-06-20
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Expires: 1985-03-19
Abstract
No abstract record available.
Inventors
- 👤 Bristow Barney
- 👤 Robert A Mccloud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:21
CPC Classifications
B; B05; B05B; B05B3/00; B05B3/02; B05B3/04; B05B3/0417; B05B3/0423; B05B3/0444; B05B3/06; B05B3/066
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
140 words
IN A TANK CLEANING MACHINE HAVING A MAIN HOUSING HAVING AN INTERIOR PASSAGEWAY ADAPTED TO BE CONNECTED TO A FLUID SUPPLY CONDUIT, A NOZZLE HOUSING ROTATABLY MOUNTED ON SAID MAIN HOUSING IN COMMUNICATION WITH SAID PASSAGEWAY, AND DRIVE MEANS FOR CONTROLLING THE SPEED OF ROTATION OF SAID NOZZLE HOUSING ON SAID MAIN HOUSING WITH SAID DRIVE MEANS INCLUDING AN ANNULAR GEAR MOUNTED ON SAID MAIN HOUSING AND A SECOND ANNULAR GEAR MOUNTED ON SAID NOZZLE HOUSING, THE IMPROVED HYDRAULIC CLUTCH FOR SAID DRIVE MEANS WHICH COMPRISES: A GENERALLY CONICAL RECESS IN ONE FACE OF ONE OF SAID GEARS SPACED AWAY FROM THE CENTER OF SAID GEAR, AND A PISTON MOVABLY MOUNTED IN THE ONE HOUSING ON WHICH SAID ONE GEAR IS MOUNTED WITH SAID PISTON HAVING A GENERALLY CONICAL SURFACE ON ONE END THEREOF ENGAGED IN SAID CONICAL DEPRESSION AND
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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) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |