US3383116A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Face seal
Assignee: JC CARTER COMPANY Inc A CORP OF
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Filing: 1964-09-30
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Granted: 1968-05-14
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Expires: 1984-09-30
Abstract
No abstract record available.
Inventors
- 👤 James C Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:33
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3404; F16J15/3408; F16J15/3412
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A SELF-CLEANING ROTARY FACE SEAL COMPRISING A NONROTATABLE WEARABLE SEAL RING, A ROTATABLE RELATIVELY NONWEARABLE SEAL RING, SAID SEAL RINGS HAVING WIDE MATING SEAL FACES, MEANS URGING SAID WIDE FACES INTO SEALING RIDING CONTACT, SAID FACE OF THE ROTATABLE RING HAVING CIRCUMFERENTIALLY SPACED RECESSES ALTERNATELY VENTED TO THE OUTER AND INNER PERIPHERIES OF THE NON-ROTATABLE RING, AND SAID RECESSES BEING POSITIONED TO ALTERNATELY EXPOSE RADIALLY OUTER AND INNER PORTIONS OF THE ENTIRE SEAL FACE OF THE NON-ROTATABLE RING TO THE SURROUNDING ATMOSPHERE WITHOUT OPENING UP LEAKAGE PATHS BETWEEN THE MATING FACES OF THE RINGS, WHEREBY GRIT PARTICLES DEVELOPED BY WEAR OR THE LIKE ARE PICKED UP IN THE RECESSES AND REJECTED FROM THE SEAL FACES IMMEDIATELY UPON FORMATION TO MINIMIZE SEAL WEAR.
Claim 2
Dependent Claim
122 words
A SELF-CLEANING ROTARY FACE SEAL COMPRISING A NONROTATABLE WEARABLE SEAL RING, A ROTATABLE RELATIVELY NONWEARABLE SEAL RING, SAID SEAL RINGS HAVING WIDE MATING SEAL FACES, MEANS URGING SAID WIDE FACES INTO SEALING RIDING CONTACT, SAID FACE OF THE ROTATABLE RING HAVING CIRCUMFERENTIALLY SPACED RECESSES ALTERNATELY VENTED TO THE OUTER AND INNER PERIPHERIES OF THE NON-ROTATABLE RING, AND SAID RECESSES BEING POSITIONED TO ALTERNATELY EXPOSE RADIALLY OUTER AND INNER PORTIONS OF THE ENTIRE SEAL FACE OF THE NON-ROTATABLE RING TO THE SURROUNDING ATMOSPHERE WITHOUT OPENING UP LEAKAGE PATHS BETWEEN THE MATING FACES OF THE RINGS, WHEREBY GRIT PARTICLES DEVELOPED BY WEAR OR THE LIKE ARE PICKED UP IN THE RECESSES AND REJECTED FROM THE SEAL FACES IMMEDIATELY UPON FORMATION TO MINIMIZE SEAL WEAR.
References Cited (Backward Citations)
US2247505A
Cited
FR1023186A
Cited
US2949321A
Cited
US2995390A
Cited
US3100647A
Cited
US3186723A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |