US3286553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boiler superheater tube reaming assembly
Assignee: Individual
•
Filing: 1965-08-20
•
Granted: 1966-11-22
•
Expires: 1985-08-20
Abstract
No abstract record available.
Inventors
- 👤 John W Spencer
- 👤 Claude C Rice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:08
CPC Classifications
B; B23; B23B; B23B5/00; B23B5/16; B23B5/161; B23B5/162; B23B3/00; B23B3/22; Y; Y10; Y10T; Y10T408/00; Y10T408/55; Y10T408/557; Y10T409/00; Y10T409/30; Y10T409/306216; Y10T409/306384
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
REAMING APPARATUS COMPRISING: A PRESSURE ARM HAVING A BIFURCATED END; A RING PIVOTALLY SUPPORTED IN SAID BIFURCATED END; A SHAFT ROTATABLY JOURNALLED IN SAID RING; A THRUST BEARING ACTING BETWEEN SAID SHAFT AND SAID RING; A REAMING ELEMENT CARRIED BY SAID SHAFT FOR ROTATION THEREWITH; FULCRUM MEANS ADJUSTABLY POSITIONABLE ALONG SAID PRESSURE ARM BETWEEN THE ENDS THEREOF AND INCLUDING EXPANSION MEANS FOR ANCHORING OF SAID FULCRUM MEANS IN AN OPENING; AND SCREW MEANS OPERATIVE ON THE END OF SAID PRESSURE ARM REMOTE FROM SAID BIFURCATED END FOR SUPPLY FEED THRUST TO SAID SHAFT THROUGH SAID BEARING.
Claim 2
Dependent Claim
96 words
REAMING APPARATUS COMPRISING: A PRESSURE ARM HAVING A BIFURCATED END; A RING PIVOTALLY SUPPORTED IN SAID BIFURCATED END; A SHAFT ROTATABLY JOURNALLED IN SAID RING; A THRUST BEARING ACTING BETWEEN SAID SHAFT AND SAID RING; A REAMING ELEMENT CARRIED BY SAID SHAFT FOR ROTATION THEREWITH; FULCRUM MEANS ADJUSTABLY POSITIONABLE ALONG SAID PRESSURE ARM BETWEEN THE ENDS THEREOF AND INCLUDING EXPANSION MEANS FOR ANCHORING OF SAID FULCRUM MEANS IN AN OPENING; AND SCREW MEANS OPERATIVE ON THE END OF SAID PRESSURE ARM REMOTE FROM SAID BIFURCATED END FOR SUPPLY FEED THRUST TO SAID SHAFT THROUGH SAID BEARING.
References Cited (Backward Citations)
US766713A
Cited
US1781338A
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US1882689A
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US2026821A
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US2004228A
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US2749809A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |