US3101199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid assemblies and sealing inserts therefor
Assignee: Klein Schanzlin and Becker AG
•
Filing: 1961-01-30
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Granted: 1963-08-20
•
Expires: 1981-01-30
Abstract
No abstract record available.
Inventors
- 👤 Hartnagel Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:05
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/18; F16J15/182; F16J15/183
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A FLUID-SEALING INSERT FOR STUFFING BOXES AND THE LIKE, PARTICULARLY FOR SEALING THE SHAFTS OF CENTRIFUGAL PUMPS, SAID INSERT COMPRISING, IN COMBINATION, A RIGID RING HAVING AN END FACE AND COMPRISING RETAINING MEANS PROJECTING FROM SAID END FACE; AND SOFT PACKING MEANS ADJACENT TO SAID END FACE, SAID RETAINING MEANS CONNECTING SAID PACKING MEANS WITH SAID RING AND PREVENTING DISPLACEMENT OF SAID PACKING MEANS AXIALLY AWAY FROM SAID RING WHEN SAID PACKING MEANS IS SUBJECTED TO FORCES TENDING TO PULL SAID PACKING MEANS AWAY FROM SAID RING IN A DIRECTION GENERALLY PARALLEL TO THE AXIS OF SAID RING, AND SAID PACKING MEANS EXTENDING AXIALLY BEYOND SAID RETAINING MEANS.
Claim 2
Dependent Claim
108 words
A FLUID-SEALING INSERT FOR STUFFING BOXES AND THE LIKE, PARTICULARLY FOR SEALING THE SHAFTS OF CENTRIFUGAL PUMPS, SAID INSERT COMPRISING, IN COMBINATION, A RIGID RING HAVING AN END FACE AND COMPRISING RETAINING MEANS PROJECTING FROM SAID END FACE; AND SOFT PACKING MEANS ADJACENT TO SAID END FACE, SAID RETAINING MEANS CONNECTING SAID PACKING MEANS WITH SAID RING AND PREVENTING DISPLACEMENT OF SAID PACKING MEANS AXIALLY AWAY FROM SAID RING WHEN SAID PACKING MEANS IS SUBJECTED TO FORCES TENDING TO PULL SAID PACKING MEANS AWAY FROM SAID RING IN A DIRECTION GENERALLY PARALLEL TO THE AXIS OF SAID RING, AND SAID PACKING MEANS EXTENDING AXIALLY BEYOND SAID RETAINING MEANS.
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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) | 1966-08-19 | 1967-02-18 | 1967-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-19 | 1971-02-18 | 1971-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-19 | 1975-02-18 | 1975-08-20 | $7700.00 | Window Closed / Lapsed |