US3330386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing arrangement for retarder system
Assignee: Caterpillar Inc
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Filing: 1966-03-21
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Granted: 1967-07-11
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Expires: 1986-03-21
Abstract
No abstract record available.
Inventors
- 👤 August H Bertram
- 👤 Norman E Risk
- 👤 Alfred W Sieving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:11
CPC Classifications
F; F16; F16D; F16D57/00; F16D57/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A RETARDER SYSTEM FOR A VEHICLE COMPRISING A CASING, A SHAFT PASSING THERETHROUGH, AT LEAST ONE WALL OF SAID CASING COMPRISING A BLADED STATOR, A ROTOR SECURED TO SAID SHAFT AND HAVING RADIALLY EXTENDING BLADES CONFRONTING SAID STATOR AND ROTATABLE IN THE SPACE DEFINED BY SAID CASING, FLUID SEALING MEANS INTERPOSED BETWEEN SAID CASING AND SAID SHIFT ONE EACH SIDE OF THE JUNCTURE OF SAID ROTOR WITH SAID SHAFT, SAID SEALING MEANS COMPRISING A REMOVABLE ADAPTED SECURED TO SAID SHAFT AND ROTATABLE THEREWITH, SAID ADAPTER BEING SEPARABLE FROM BOTH SAID ROTOR AND SAID SHAFT, A HARD ANNULAR PISTON RING EXTENDING FROM A GROOVE FORMED IN THE RADIALLY OUTER SURFACE OF SAID ADAPTED, AND A HARDENED WEAR INSERT POSITIONED IN SAID CASING AND ADAPTED TO BE SEALINGLY ENGAGED BY SAID PISTON RING TO INSURE THAT THE COMPARTMENT DEFINED BY SAID CASING IS SUBSTANTIALLY FLUID TIGHT.
Claim 2
Dependent Claim
144 words
A RETARDER SYSTEM FOR A VEHICLE COMPRISING A CASING, A SHAFT PASSING THERETHROUGH, AT LEAST ONE WALL OF SAID CASING COMPRISING A BLADED STATOR, A ROTOR SECURED TO SAID SHAFT AND HAVING RADIALLY EXTENDING BLADES CONFRONTING SAID STATOR AND ROTATABLE IN THE SPACE DEFINED BY SAID CASING, FLUID SEALING MEANS INTERPOSED BETWEEN SAID CASING AND SAID SHIFT ONE EACH SIDE OF THE JUNCTURE OF SAID ROTOR WITH SAID SHAFT, SAID SEALING MEANS COMPRISING A REMOVABLE ADAPTED SECURED TO SAID SHAFT AND ROTATABLE THEREWITH, SAID ADAPTER BEING SEPARABLE FROM BOTH SAID ROTOR AND SAID SHAFT, A HARD ANNULAR PISTON RING EXTENDING FROM A GROOVE FORMED IN THE RADIALLY OUTER SURFACE OF SAID ADAPTED, AND A HARDENED WEAR INSERT POSITIONED IN SAID CASING AND ADAPTED TO BE SEALINGLY ENGAGED BY SAID PISTON RING TO INSURE THAT THE COMPARTMENT DEFINED BY SAID CASING IS SUBSTANTIALLY FLUID TIGHT.
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) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |