Patent US3198560A successfully refreshed from Google Patents.
US3198560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brazed tube coupling
Assignee: Parker Hannifin Corp
•
Filing: 1963-03-06
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Granted: 1965-08-03
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Expires: 1983-03-06
Abstract
No abstract record available.
Inventors
- 👤 Donald F Collins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:29
CPC Classifications
F; F16; F16L; F16L13/00; F16L13/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A COUPLING FOR TUBES COMPRISING A BODY MEMBER HAVING A CYLINDRICAL BORE FOR RECEIVING A TUBE, AN ANNULAR RECESS IN SAID BORE SPACED INWARDLY FROM THE OUTER END THEREOF, A RING OF FUSIBLE METAL LOCATED WITHIN THE RECESS, SAID RING HAVING AN INSIDE DIAMETER INITIALLY SMALLER THAN THE DIAMETER OF A TUBE TO BE INSERTED THERETHROUGH, SAID RECESS HAVING A FLAT BOTTOM WALL OF UNIFORM DIAMETER AND HAVING STRAIGHT SIDE WALLS THAT TAPER AWAY FROM EACH OTHER WHEREBY THE RECESS IS WIDER AT ITS SMALLER DIAMETER THAN AT ITS BOTTOM, SAID RING BEING AXIALLY SPLIT AND HAVING A FLAT CYLINDRICAL OUTER SURFACE AND STRAIGHT END WALLS EACH TERMINATING IN A CHAMFER, SAID RING ALSO HAVING A CROSS
Claim 2
Dependent Claim
117 words
A COUPLING FOR TUBES COMPRISING A BODY MEMBER HAVING A CYLINDRICAL BORE FOR RECEIVING A TUBE, AN ANNULAR RECESS IN SAID BORE SPACED INWARDLY FROM THE OUTER END THEREOF, A RING OF FUSIBLE METAL LOCATED WITHIN THE RECESS, SAID RING HAVING AN INSIDE DIAMETER INITIALLY SMALLER THAN THE DIAMETER OF A TUBE TO BE INSERTED THERETHROUGH, SAID RECESS HAVING A FLAT BOTTOM WALL OF UNIFORM DIAMETER AND HAVING STRAIGHT SIDE WALLS THAT TAPER AWAY FROM EACH OTHER WHEREBY THE RECESS IS WIDER AT ITS SMALLER DIAMETER THAN AT ITS BOTTOM, SAID RING BEING AXIALLY SPLIT AND HAVING A FLAT CYLINDRICAL OUTER SURFACE AND STRAIGHT END WALLS EACH TERMINATING IN A CHAMFER, SAID RING ALSO HAVING A CROSS
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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) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |