Patent US3303719A successfully refreshed from Google Patents.
US3303719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Viscous torsional vibration damper with centering and sealing means
Assignee: Schwitzer Corp
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Filing: 1965-01-21
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Granted: 1967-02-14
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Expires: 1985-01-21
Abstract
No abstract record available.
Inventors
- 👤 Kurt A Beier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:08
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/10; F16F15/16; F16F15/167
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A TORSIONAL VIBRATION DAMPER ASSEMBLY FOR MOUNTING IN OPERATIVE RELATION TO THE CRANKSHAFT OF AN INTERNAL COMBUSTION ENGINE COMPRISING A GENERALLY ANNULAR DRIVING HUB OR MEMBER HAVING A RADIALLY INWARDLY EXTENDING SURFACE FOR CONCENTRIC ATTACHMENT TO A CRANKSHAFT AND HAVING A RADIALLY OUTWARDLY EXTENDING FLANGE, A DRIVEN INERTIA MEMBER MOUNTED CONCENTRICALLY OF SAID DRIVING MEMBER AND HAVING A CENTRAL APERTURE THEREIN ACCOMMODATING SAID DRIVING MEMBER, SAID DRIVEN MEMBER BEING PROVIDED WITH A RADIALLY OUTWARDLY EXTENDING CAVITY FREELY ACCOMMODATING SAID OUTWARDLY EXTENDING FLANGE OF SAID DRIVING MEMBER, THE INNER MARGINS OF SAID DRIVEN MEMBER ADJACENT SAID CAVITY BEING FORMED TO PROVIDE AN AN-
Claim 2
Dependent Claim
102 words
A TORSIONAL VIBRATION DAMPER ASSEMBLY FOR MOUNTING IN OPERATIVE RELATION TO THE CRANKSHAFT OF AN INTERNAL COMBUSTION ENGINE COMPRISING A GENERALLY ANNULAR DRIVING HUB OR MEMBER HAVING A RADIALLY INWARDLY EXTENDING SURFACE FOR CONCENTRIC ATTACHMENT TO A CRANKSHAFT AND HAVING A RADIALLY OUTWARDLY EXTENDING FLANGE, A DRIVEN INERTIA MEMBER MOUNTED CONCENTRICALLY OF SAID DRIVING MEMBER AND HAVING A CENTRAL APERTURE THEREIN ACCOMMODATING SAID DRIVING MEMBER, SAID DRIVEN MEMBER BEING PROVIDED WITH A RADIALLY OUTWARDLY EXTENDING CAVITY FREELY ACCOMMODATING SAID OUTWARDLY EXTENDING FLANGE OF SAID DRIVING MEMBER, THE INNER MARGINS OF SAID DRIVEN MEMBER ADJACENT SAID CAVITY BEING FORMED TO PROVIDE AN AN-
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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |