Patent US3127840A successfully refreshed from Google Patents.
US3127840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clothes washer with improved turbine type pump
Assignee: General Electric Co
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Filing: 1961-12-26
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Granted: 1964-04-07
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Expires: 1981-12-26
Abstract
No abstract record available.
Inventors
- 👤 Bochan John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:30
CPC Classifications
D; D06; D06F; D06F39/00; D06F39/08; D06F39/083; D06F39/085; F; F04; F04D; F04D29/00; F04D29/18; F04D29/188; F04D5/00; F04D5/002; F04D5/007; D06F2103/00; D06F2103/42; D06F2103/44; D06F2103/48; Y; Y10; Y10S; Y10S415/00; Y10S415/911
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A TURBINE PUMP COMPRISING A HOUSING HAVING A SUBSTANTIALLY ANNULAR OUTER WALL AND TOP AND BOTTOM WALLS CLOSING THE ENDS OF SAID OUTER WALL, SAID HOUSING DEFINING THEREWITHIN A PUMP CHAMBER, A ROTABLE IMPELLER HABING AN ANNULAR SERIES OF BLADES EXTENDING OUTWARDLY INTO SAID CHAMBER AND FORMING WITH SAID WALLS A SUBSTANTIALLY TOROIDAL SPACE, SAID OUTER WALL HAVING FIRST AND SECOND CIRCUMFERENTIALLY SPACED OUTLET OPENINGS FORMED THEREIN, CHECK VALVE MEANS POSITIONED TO PERMIT FLOW FROM SAID CHAMBER THROUGH SAID OUTLET OPENINGS AND TO PREVENT FLOW
Claim 2
Dependent Claim
85 words
A TURBINE PUMP COMPRISING A HOUSING HAVING A SUBSTANTIALLY ANNULAR OUTER WALL AND TOP AND BOTTOM WALLS CLOSING THE ENDS OF SAID OUTER WALL, SAID HOUSING DEFINING THEREWITHIN A PUMP CHAMBER, A ROTABLE IMPELLER HABING AN ANNULAR SERIES OF BLADES EXTENDING OUTWARDLY INTO SAID CHAMBER AND FORMING WITH SAID WALLS A SUBSTANTIALLY TOROIDAL SPACE, SAID OUTER WALL HAVING FIRST AND SECOND CIRCUMFERENTIALLY SPACED OUTLET OPENINGS FORMED THEREIN, CHECK VALVE MEANS POSITIONED TO PERMIT FLOW FROM SAID CHAMBER THROUGH SAID OUTLET OPENINGS AND TO PREVENT FLOW
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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) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |