US3175503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Segmentary sealing blades for rotary engines
Assignee: Renault SA
•
Filing: 1962-03-15
•
Granted: 1965-03-30
•
Expires: 1982-03-15
Abstract
No abstract record available.
Inventors
- 👤 Peras Lucien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:32
CPC Classifications
F; F01; F01C; F01C19/00; F01C19/02; F01C19/04; F01C19/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A ROTARY ENGINE COMPRISING A STATOR HAVING AN INNER WALL WHICH DEFINES A HOLLOW COMPARTMENT, SAID WALL DEFINING IN RADIAL CROSS-SECTION A PLURALITY OF ANGULARLY ADJOINING CONCAVE RECESSES AND AN INWARDLY PROTRUDING APEX AT EACH POINT OF JUNCTURE BETWEEN TWO ADJOINING RECESSES, A ROTOR MOUNTED WITHIN SAID COMPARTMENT ALONG A LONGITUDINAL AXIS WHICH IS PARALLEL TO THE LONGITUDINAL AXIS OF SAID STATOR, SAID ROTOR HAVING A PERIPHERAL SURFACE WHICH DEFINES IN RADIAL CROSS-SECTON A PLURALITY OF CONVEX LOBES, EACH LOBE BEING CURVED SUBSTANTIALLY TO THE SAME CURVATURE AS EACH OF SAID RECESSES, SAID STATOR COMPRISING A LONGITUDINAL GROOVE AT EACH OF SAID APEXES, A SEALING MEANS IN EACH OF SAID GROOVES, EACH OF SAID SEALING MEANS COM-
Claim 2
Dependent Claim
117 words
A ROTARY ENGINE COMPRISING A STATOR HAVING AN INNER WALL WHICH DEFINES A HOLLOW COMPARTMENT, SAID WALL DEFINING IN RADIAL CROSS-SECTION A PLURALITY OF ANGULARLY ADJOINING CONCAVE RECESSES AND AN INWARDLY PROTRUDING APEX AT EACH POINT OF JUNCTURE BETWEEN TWO ADJOINING RECESSES, A ROTOR MOUNTED WITHIN SAID COMPARTMENT ALONG A LONGITUDINAL AXIS WHICH IS PARALLEL TO THE LONGITUDINAL AXIS OF SAID STATOR, SAID ROTOR HAVING A PERIPHERAL SURFACE WHICH DEFINES IN RADIAL CROSS-SECTON A PLURALITY OF CONVEX LOBES, EACH LOBE BEING CURVED SUBSTANTIALLY TO THE SAME CURVATURE AS EACH OF SAID RECESSES, SAID STATOR COMPRISING A LONGITUDINAL GROOVE AT EACH OF SAID APEXES, A SEALING MEANS IN EACH OF SAID GROOVES, EACH OF SAID SEALING MEANS COM-
References Cited (Backward Citations)
NL15015C
Cited
US724994A
Cited
US827529A
Cited
CH58490A
Cited
US1350231A
Cited
FR537506A
Cited
US1776452A
Cited
US2801791A
Cited
US2829603A
Cited
US3070074A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |