US3567230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft seal
Assignee: Individual
•
Filing: 1969-09-25
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Granted: 1971-03-02
•
Expires: 1989-09-25
Abstract
Abstract A ROTATABLE SEAL FOR SEALING A SHAFT WITH RESPECT TO AN ENCLOSURE FROM WHICH THE SHAFT EXTENDS TO PRECLUDE LEAKAGE FROM OR INTO THE ENCLOSURE ALONG THE SHAFT AND RUBBING SURFACES ARE PROVIDED ON THE ROTATING SEAL AND THE ENCLOSURE RESPECTIVELY. IN PARTICULAR, AN IMPROVED PACKING IS PROVIDED TO ACHIEVE FLUID TIGHTNESS OF THE SEAL WITH RESPECT TO THE SHAFT, TOGETHER WITH MEANS TO ADJUSTABLY COMPRESS THE PACKING INTO SUCH TIGHT RELATION BY SIMPLE, EFFECTIVE MEANS.
Inventors
- 👤 Norbert W Gits
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:59
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |