Patent US3216768A successfully refreshed from Google Patents.
US3216768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump construction
Assignee: Individual
•
Filing: 1963-07-23
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Granted: 1965-11-09
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Expires: 1983-07-23
Abstract
No abstract record available.
Inventors
- 👤 Soeding Eugen
- 👤 Kempeneer Gunther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:00
CPC Classifications
F; F04; F04C; F04C2/00; F04C2/08; F04C2/10; F04C2/107; F04C2/1071; F04C2/1073; F04C11/00; F04C11/005; F04C13/00; F04C13/001; F04C13/002; F04C13/004; Y; Y10; Y10S; Y10S417/00; Y10S417/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
AN ECCENTRIC WORM PUMP COMPRISING A STATOR HAVING A SUBSTANTIALLY AXIALLY EXTENDING HELICAL BORE WITH AN INLET ADJACENT ONE END AND A DISCHARGE ADJACENT THE OTHER, A ROTOR OF SIMILAR CONFIGURATION TO SAID BORE ROTATABLE IN SAID STATOR AND FORMING A CLOSED CAVITY THEREWITH WHICH ADVANCES IN A DIRECTION OF PUMPING MOVEMENT DURING MOVEMENT OF SAID ROTOR IN SAID STATOR FOR CONVEYING THE MATERIAL FROM THE INLET END OF SAID STATOR TO THE DISCHARGE END THEREOF, A DRIVE SHAFT FOR ROTATING SAID ROTOR AND FOR OSCILLATING SAID ROTOR, DRIVE JOINT MEANS CONNECTED BETWEEN SAID DRIVE SHAFT AND SAID ROTOR FOR PERMITTING OSCILLATORY MOVEMENT AND ROTATION THEREOF, FITTING MEANS FORMING A CHAMBER AT EACH END OF SAID STATOR, ONE SERVING AS A SUCTION CHAMBER AND ONE SERVING AS A DELIVERY CHAMBER, AND A WORM ROTATABLE IN SAID FITTING MEANS FORMING SAID SUCTION CHAMBER AND SECUED TO SAID ROTOR FOR ROTATIVE MOVEMENT THEREWITH FOR DIRECTING MATERIALS FED INTO SAID INLET FITTING IN A DIRECTION TOWARD SAID DISCHARGE END.
Claim 2
Dependent Claim
166 words
AN ECCENTRIC WORM PUMP COMPRISING A STATOR HAVING A SUBSTANTIALLY AXIALLY EXTENDING HELICAL BORE WITH AN INLET ADJACENT ONE END AND A DISCHARGE ADJACENT THE OTHER, A ROTOR OF SIMILAR CONFIGURATION TO SAID BORE ROTATABLE IN SAID STATOR AND FORMING A CLOSED CAVITY THEREWITH WHICH ADVANCES IN A DIRECTION OF PUMPING MOVEMENT DURING MOVEMENT OF SAID ROTOR IN SAID STATOR FOR CONVEYING THE MATERIAL FROM THE INLET END OF SAID STATOR TO THE DISCHARGE END THEREOF, A DRIVE SHAFT FOR ROTATING SAID ROTOR AND FOR OSCILLATING SAID ROTOR, DRIVE JOINT MEANS CONNECTED BETWEEN SAID DRIVE SHAFT AND SAID ROTOR FOR PERMITTING OSCILLATORY MOVEMENT AND ROTATION THEREOF, FITTING MEANS FORMING A CHAMBER AT EACH END OF SAID STATOR, ONE SERVING AS A SUCTION CHAMBER AND ONE SERVING AS A DELIVERY CHAMBER, AND A WORM ROTATABLE IN SAID FITTING MEANS FORMING SAID SUCTION CHAMBER AND SECUED TO SAID ROTOR FOR ROTATIVE MOVEMENT THEREWITH FOR DIRECTING MATERIALS FED INTO SAID INLET FITTING IN A DIRECTION TOWARD SAID DISCHARGE END.
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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) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |