Sealing ring
Abstract
Abstract A SHAFT SEALING RING INCLUDES AN ANNULAR CONNECTING PORTION, AN ANNULAR SLEEVE PORTION JOINED TO THE CONNECTING PORTION, AND AN ANNULAR SEALING PORTION JOINED TO THE SLEEVE PORTION AND HAVING AN ANNULAR SEALING EDGE. A PLURALITY OF CIRCUMFERENTIALLY DISTRIBUTED ELASTIC TONGUES EXTEND RADIALLY FROM THE SEALING PORTION. EACH TONGUE HAS A PORTION WHCIH EXTENDS BEYOND THE MAXIMUM RADIAL DIMENSION OF THE SEALING EDGE. AS A RESULT THE TONGUES ENGAGE WITH TENSION A SHAFT SURFACE. THE TONGUES ARE AXIALLY SPACED FROM THE SEALING EDGE AND THE REGION OF EACH TONGUE WHICH IS CLOSEST TO THE SEALING EDGE EXTENDS RADIALLY THE FURTHEST BEYOND THE MAXIMUM RADIAL DIMENSION OF THE SEALING EDGE.
Inventors
- 👤 Werner Heinl
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |