Patent US2847215A successfully refreshed from Google Patents.
US3205028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double-curved slipper
Assignee: Rateau SA
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Filing: 1963-10-04
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Granted: 1965-09-07
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Expires: 1983-10-04
Abstract
No abstract record available.
Inventors
- 👤 Mech Christian
- 👤 Hirtz Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:55
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/10; F16C33/1025; F16C33/106; F16C33/1075; F16C17/00; F16C17/02; F16C17/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A HYDRODYNAMIC GAS BEARING JOURNAL ASSEMBLY COMPRISING: A JOURNAL OF A ROTARY MEMBER, A PLURALITY OF SEPARATE BEARING SLIPPER UNITS CIRCUMFERENTIALLY SPACED AROUND SAID ROTARY MEMBER, SAID ROTARY MEMBER BEING CIRCULAR IN CROSS-SECTION, THE LOWERMOST BEARING UNIT POSITIONED BELOW SAID ROTARY MEMBER AND HAVING A FIRST BEARING AREA HAVING A FIRST FINITE RADIUS OF CURVATURE NOT LESS THAN THE RADIUS OF SAID JOURNAL MEMBER, SAID FIRST BEARING AREA BEING IN THE GENERAL FORM OF A CONCAVE TROUGH, SAID BEARING SURFACE HAVING A SECOND BEARING AREA HAVING A SECOND FINITE RADIUS OF CURVATURE WHICH IS GREATER THAN THE SAID FIRST RADIUS OF CURVATURE, THE SAID SECOND BEARING AREA BEING IN THE GENERAL FORM OF TWO SECOND TROUGHS LYING ADJACENT THE SAID FIRST TROUGH AND PARALLEL THERETO, THE INTERSECTION OF SAID FIRST AND EACH OF SAID SECOND BEARING AREAS EACH DEFINING A SINGLE RIDGE.
Claim 2
Dependent Claim
142 words
A HYDRODYNAMIC GAS BEARING JOURNAL ASSEMBLY COMPRISING: A JOURNAL OF A ROTARY MEMBER, A PLURALITY OF SEPARATE BEARING SLIPPER UNITS CIRCUMFERENTIALLY SPACED AROUND SAID ROTARY MEMBER, SAID ROTARY MEMBER BEING CIRCULAR IN CROSS-SECTION, THE LOWERMOST BEARING UNIT POSITIONED BELOW SAID ROTARY MEMBER AND HAVING A FIRST BEARING AREA HAVING A FIRST FINITE RADIUS OF CURVATURE NOT LESS THAN THE RADIUS OF SAID JOURNAL MEMBER, SAID FIRST BEARING AREA BEING IN THE GENERAL FORM OF A CONCAVE TROUGH, SAID BEARING SURFACE HAVING A SECOND BEARING AREA HAVING A SECOND FINITE RADIUS OF CURVATURE WHICH IS GREATER THAN THE SAID FIRST RADIUS OF CURVATURE, THE SAID SECOND BEARING AREA BEING IN THE GENERAL FORM OF TWO SECOND TROUGHS LYING ADJACENT THE SAID FIRST TROUGH AND PARALLEL THERETO, THE INTERSECTION OF SAID FIRST AND EACH OF SAID SECOND BEARING AREAS EACH DEFINING A SINGLE RIDGE.
References Cited (Backward Citations)
US2134621A
Cited
US2710234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |