US3280754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine
Assignee: New York Air Brake LLC
•
Filing: 1964-02-12
•
Granted: 1966-10-25
•
Expires: 1984-02-12
Abstract
No abstract record available.
Inventors
- 👤 Walter E Marietta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:04
CPC Classifications
F; F04; F04C; F04C15/00; F04C15/0003; F04C15/0023; F04C15/0026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
IN A GEAR ENGINE OF THE TYPE INCLUDING A CASING HAVING SEPARABLE SECTIONS AND CONTAINING A WORKING CHAMBER WHOSE OPPOSITE ENDS ARE CLOSED BY TRANSVERSE END WALLS, ONE OF SAID TRANSVERSE END WALLS BEING A SURFACE OF A FIRST ONE OF THE CASING SECTIONS, AND MESHING GEARS LOCATED IN THE WORKING CHAMBER AND HAVING SIDE FACES SUBSTANTIALLY PARALLEL WITH AND CLOSELY ADJACENT THE TRANSVERSE END WALLS, THE IMPROVEMENT WHICH COMPRISES (A) A BIAS CHAMBER DEFINED BY A VOID IN THE MATERIAL FROM WHICH SAID FIRST CASING SECTION IS MADE, SAID BIAS CHAMBER BEING SPACED INWARD FROM THE SURFACE CONSTITUTING SAID TRANSVERSE END WALL TO DEFINE AN INTERVENTING DEFLECTABLE PORTION OF SAID CASING MATERIAL THAT MAY BE BOWED OUTWARD INTO SEALING ENGAGEMENT WITH THE SIDE FACES OF THE GEARS; AND (B) MEANS FOR TRANSMITTING TO THE BIAS CHAMBER FLUID FROM A HIGH PRESSURE SPACE OF THE ENGINE.
Claim 2
Dependent Claim
146 words
IN A GEAR ENGINE OF THE TYPE INCLUDING A CASING HAVING SEPARABLE SECTIONS AND CONTAINING A WORKING CHAMBER WHOSE OPPOSITE ENDS ARE CLOSED BY TRANSVERSE END WALLS, ONE OF SAID TRANSVERSE END WALLS BEING A SURFACE OF A FIRST ONE OF THE CASING SECTIONS, AND MESHING GEARS LOCATED IN THE WORKING CHAMBER AND HAVING SIDE FACES SUBSTANTIALLY PARALLEL WITH AND CLOSELY ADJACENT THE TRANSVERSE END WALLS, THE IMPROVEMENT WHICH COMPRISES (A) A BIAS CHAMBER DEFINED BY A VOID IN THE MATERIAL FROM WHICH SAID FIRST CASING SECTION IS MADE, SAID BIAS CHAMBER BEING SPACED INWARD FROM THE SURFACE CONSTITUTING SAID TRANSVERSE END WALL TO DEFINE AN INTERVENTING DEFLECTABLE PORTION OF SAID CASING MATERIAL THAT MAY BE BOWED OUTWARD INTO SEALING ENGAGEMENT WITH THE SIDE FACES OF THE GEARS; AND (B) MEANS FOR TRANSMITTING TO THE BIAS CHAMBER FLUID FROM A HIGH PRESSURE SPACE OF THE ENGINE.
References Cited (Backward Citations)
US164147A
Cited
US2176322A
Cited
US2702509A
Cited
US2742862A
Cited
US2809592A
Cited
US2824524A
Cited
US3101673A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |