US3229643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary pump
Assignee: Individual
•
Filing: 1963-06-03
•
Granted: 1966-01-18
•
Expires: 1983-06-03
Abstract
No abstract record available.
Inventors
- 👤 Roudaut Philippe Robert Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:39
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/02; F04B43/021; F04B43/08; F04B43/082; F04B43/12; F04B43/14; F04C; F04C2/00; F04C2/08; F04C2/10; F04C2/107; F04C2/1071; F04C2/1076
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A ROTARY PUMP FOR A FLUID, COMPRISING A CYLINDRICAL TUBULAR BODY WHICH IS LONGITUDINALLY TRAVERSED BY A FLEXIBLE TUBULAR DIAPHRAGM DEFINING WITH THIS BODY AN ANNULAR CHAMBER, THE RESPECTIVE ENDS OF WHICH COMMUNICATE WITH AN INLET AND OUTLET ORIFICE FOR A FLUID, MEANS FOR CONTINUOUSLY DEFORMING THE DIAPHRAGM TO CAUSE THE DISPLACEMENT, FROM THE INLET ORIFICE TOWARDS THE OUTLET ORIFICE, OF FLUID CONFINED BETWEEN THE DIAPHRAGM AND THE TUBULAR BODY, AND FURTHER CHARACTERIZED IN THAT SAID MEANS FOR DEFORMING THE DIAPHRAGM ARE CONSTITUTED BY AN HELICOIDAL ROTOR HAVING A CIRCULAR SECTION AND A SERIES OF BEARINGS ECCENTRIC IN RELATION TO THE AXIS OF THE PUMP BODY, SAID BEARINGS BEING ANGULARLY STAGGERED, AND SAID DIAPHRAGM RESTING ON RINGS IN WHICH THE ECCENTRIC BEARINGS OF THE ROTOR CAN ROTATE.
Claim 2
Dependent Claim
127 words
A ROTARY PUMP FOR A FLUID, COMPRISING A CYLINDRICAL TUBULAR BODY WHICH IS LONGITUDINALLY TRAVERSED BY A FLEXIBLE TUBULAR DIAPHRAGM DEFINING WITH THIS BODY AN ANNULAR CHAMBER, THE RESPECTIVE ENDS OF WHICH COMMUNICATE WITH AN INLET AND OUTLET ORIFICE FOR A FLUID, MEANS FOR CONTINUOUSLY DEFORMING THE DIAPHRAGM TO CAUSE THE DISPLACEMENT, FROM THE INLET ORIFICE TOWARDS THE OUTLET ORIFICE, OF FLUID CONFINED BETWEEN THE DIAPHRAGM AND THE TUBULAR BODY, AND FURTHER CHARACTERIZED IN THAT SAID MEANS FOR DEFORMING THE DIAPHRAGM ARE CONSTITUTED BY AN HELICOIDAL ROTOR HAVING A CIRCULAR SECTION AND A SERIES OF BEARINGS ECCENTRIC IN RELATION TO THE AXIS OF THE PUMP BODY, SAID BEARINGS BEING ANGULARLY STAGGERED, AND SAID DIAPHRAGM RESTING ON RINGS IN WHICH THE ECCENTRIC BEARINGS OF THE ROTOR CAN ROTATE.
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) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |