US3117794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft glands
Assignee: BP PLC
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Filing: 1961-07-11
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Granted: 1964-01-14
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Expires: 1981-07-11
Abstract
No abstract record available.
Inventors
- 👤 Wachal Antoni Leszek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:22
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A ROTATABLE LOCATING-SEALING MEMBER SUITABLE FOR USE IN A SEALING GLAND OF THE TYPE IN WHICH A NON-ROTATABLE PACKING RING IS HELD IN CONTACT WITH A TAPERED SEATING SURFACE ASSOCIATED AND ROTATABLE WITH A SHAFT TO BE SEALED, SAID MEMBER COMPRISING A LOCATING-RING FOR CONNECTION FIXEDLY TO THE SHAFT, AND A SEALING MEMBER PROVIDING SAID TAPERED SEATING SURFACE, SAID SEALING MEMBER BEING LOOSELY CONNECTED TO SAID LOCATING-RING FOR MOVEMENT RELATIVE TO SAID LOCATING RING IN A RADIAL DIRECTION SO THAT SAID SEALING MEMBER IS ROTATABLE WITHOUT ECCENTRICITY.
Claim 2
Dependent Claim
87 words
A ROTATABLE LOCATING-SEALING MEMBER SUITABLE FOR USE IN A SEALING GLAND OF THE TYPE IN WHICH A NON-ROTATABLE PACKING RING IS HELD IN CONTACT WITH A TAPERED SEATING SURFACE ASSOCIATED AND ROTATABLE WITH A SHAFT TO BE SEALED, SAID MEMBER COMPRISING A LOCATING-RING FOR CONNECTION FIXEDLY TO THE SHAFT, AND A SEALING MEMBER PROVIDING SAID TAPERED SEATING SURFACE, SAID SEALING MEMBER BEING LOOSELY CONNECTED TO SAID LOCATING-RING FOR MOVEMENT RELATIVE TO SAID LOCATING RING IN A RADIAL DIRECTION SO THAT SAID SEALING MEMBER IS ROTATABLE WITHOUT ECCENTRICITY.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-13 | 1967-07-15 | 1968-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-13 | 1971-07-15 | 1972-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-13 | 1975-07-15 | 1976-01-14 | $7700.00 | Window Closed / Lapsed |