US3357708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Labyrinth seal
Assignee: Motors Liquidation Co
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Filing: 1965-09-17
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Granted: 1967-12-12
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Expires: 1985-09-17
Abstract
No abstract record available.
Inventors
- 👤 Max O Parr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:22
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/44; F16J15/447; F16J15/4472
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A LABYRINTH SEAL COMPRISING, IN COMBINATION, AN OUTER MEMBER HAVING AN INTERNAL GENERALLY CYLINDRICAL SURFACE, AN INNER MEMBER HAVING AN EXTERNAL GENERALLY CYLINDRICAL SURFACE DISPOSED WITHIN THE SAID INTERNAL SURFACE, CIRCUMFERENTIAL RIDGES DEFINING LABYRINTH SEAL MEMBERS ON SAID INNER MEMBER AND EXTENDING FROM THE SAID SURFACE THEREOF, A RESILIENT DEMOUNTABLE SPLIT RING MOUNTED ON SAID OUTER MEMBER AND HAVING CIRCUMFERENTIAL FLANGES EXTENDING FROM THE INNER SURFACE THEREOF AND INTO THE GROOVES DEFINED BETWEEN SAID RIDGES, SAID RING AND FLANGES BEING
Claim 2
Dependent Claim
80 words
A LABYRINTH SEAL COMPRISING, IN COMBINATION, AN OUTER MEMBER HAVING AN INTERNAL GENERALLY CYLINDRICAL SURFACE, AN INNER MEMBER HAVING AN EXTERNAL GENERALLY CYLINDRICAL SURFACE DISPOSED WITHIN THE SAID INTERNAL SURFACE, CIRCUMFERENTIAL RIDGES DEFINING LABYRINTH SEAL MEMBERS ON SAID INNER MEMBER AND EXTENDING FROM THE SAID SURFACE THEREOF, A RESILIENT DEMOUNTABLE SPLIT RING MOUNTED ON SAID OUTER MEMBER AND HAVING CIRCUMFERENTIAL FLANGES EXTENDING FROM THE INNER SURFACE THEREOF AND INTO THE GROOVES DEFINED BETWEEN SAID RIDGES, SAID RING AND FLANGES BEING
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) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |