US3667766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing and guiding device for a shaft driven in rotation
Assignee: Individual
•
Filing: 1970-05-28
•
Granted: 1972-06-06
•
Expires: 1990-05-28
Abstract
Abstract A SEALING AND GUIDING DEVICE IS PROVIDED FOR A SHAFT DRIVEN IN ROTATION AND INTENDED TO OPERATE IN AN ENCLOSURE UNDER A PRESSURE DIFFERENT FROM NORMAL ATMOSPHERIC PRESSURE. THE DEVICE COMPRISES SEALS OF RIGID MATERIAL ARRANGED TO ENSURE THE SEAL-TIGHTNESS OF THE SHAFT IN A CONTAINER WHICH IS CONTIGUOUS TO THE WORKING ENCLOSURE. THE CONTAINER IS FILLED WITH A LUBRICANT WHICH IS COOLED BY PASSING A COOLING AGENT THROUGH A COIL IN THE CONTAINER. THE CONTAINER IS PRESSURIZED TO A VALUE SIMILAR TO THAT PREVAILING IN THE ENCLOSURE. THE SHAFT IS SUPPORTED AND GUIDED IN GUIDE BEARINGS ARRANGED IN A CLEARANCE BETWEEN AN INDENTED PORTION OF THE CONTAINER AND THE SHAFT.
Inventors
- 👤 Louis Sussmeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:38
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/38; Y; Y10; Y10S; Y10S277/00; Y10S277/93
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) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |