Patent US3262673A successfully refreshed from Google Patents.
US3262673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stopper rod assembly
Assignee: Wells Fargo Capital Finance LLC
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Filing: 1964-03-24
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Granted: 1966-07-26
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Expires: 1984-03-24
Abstract
No abstract record available.
Inventors
- 👤 Sherwood B Seeley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:42
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/48; F16K1/482
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A STOPPER ROD ASSEMBLY COMPRISING A SOLID NOSED STOPPER HAVING A THREADED BORE EXTENDING DOWNWARDLY THEREINTO FROM THE UPPER END THEREOF AND A STOPPER ROD HAVING AN END PORTION REDUCED IN SECTION AND A FLANGE AT THE LOWER END THEREOF AND AN ANNULAR ABUTMENT SHOULDER SPACED INWARDLY OF SAID LOWER END FLANGE DEFINING SAID REDUCED PORTION, AND A SPLIT SLEEVE ARRANGED TO FIT INTO THE REDUCED PORTION BETWEEN SAID FLANGE AND SHOULDER, SAID SLEEVE SECTIONS HAVING EXTERNAL THREADS ARRANGED TO FIT INTO THE THREADED BORE IN THE STOPPER AND MEANS ON THE ROD BETWEEN THE FLANGE AND SHOULDER AND ENGAGED BY SAID SLEEVE SECTIONS FOR HOLDING THE SLEEVE SECTIONS AGAINST TURNING WHEN THE ROD AND SPLIT SLEEVE SECTIONS ARE THREADED INTO THE STOPPER BORE.
Claim 2
Dependent Claim
124 words
A STOPPER ROD ASSEMBLY COMPRISING A SOLID NOSED STOPPER HAVING A THREADED BORE EXTENDING DOWNWARDLY THEREINTO FROM THE UPPER END THEREOF AND A STOPPER ROD HAVING AN END PORTION REDUCED IN SECTION AND A FLANGE AT THE LOWER END THEREOF AND AN ANNULAR ABUTMENT SHOULDER SPACED INWARDLY OF SAID LOWER END FLANGE DEFINING SAID REDUCED PORTION, AND A SPLIT SLEEVE ARRANGED TO FIT INTO THE REDUCED PORTION BETWEEN SAID FLANGE AND SHOULDER, SAID SLEEVE SECTIONS HAVING EXTERNAL THREADS ARRANGED TO FIT INTO THE THREADED BORE IN THE STOPPER AND MEANS ON THE ROD BETWEEN THE FLANGE AND SHOULDER AND ENGAGED BY SAID SLEEVE SECTIONS FOR HOLDING THE SLEEVE SECTIONS AGAINST TURNING WHEN THE ROD AND SPLIT SLEEVE SECTIONS ARE THREADED INTO THE STOPPER BORE.
References Cited (Backward Citations)
GB160495A
Cited
DE450859C
Cited
CA624368A
Cited
FR419827A
Cited
US991095A
Cited
US1792945A
Cited
GB457355A
Cited
US2194961A
Cited
US2917273A
Cited
US2893687A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |