Patent US3139294A successfully refreshed from Google Patents.
US3139294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flared tube fitting
Assignee: General Dynamics Corp
•
Filing: 1960-04-04
•
Granted: 1964-06-30
•
Expires: 1980-04-04
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles M Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:18
CPC Classifications
F; F16; F16L; F16L19/00; F16L19/04; F16L19/043; F16L19/046; Y; Y10; Y10S; Y10S285/00; Y10S285/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
A FLARED TUBE COUPLING FOR A TUBE WITH A FLARED END PORTION COMPRISING A SLEEVE ADAPTED TO FIT OVER THE TUBE AND TO ABUT THE OUTER SURFACE OF SAID FLARED END PORTION, SAID SLEEVE HAVING AN INTERNAL ANNULAR FLARED CONICAL SURFACE AT THE ABUTTING END THEREOF, A FITTING WITH A BORE THEREIN ADAPTED TO MATE WITH THE BORE OF SAID TUBE, SAID FITTING HAVING AN END PORTION WITH A TAPERED SEAT FOR ENGAGEMENT WITH THE FLARED INTERNAL FACE ON THE TUBE AND AN OUTER CYLINDRICAL SURFACE JOINING SAID TAPERED SEAT, A CONICAL METALLIC WASHER SEAL WITH A CYLINDRICAL SKIRT ADAPTED TO FIT OVER A PORTION OF SAID CYLINDRICAL SURFACE AND A CONICAL PORTION CAPABLE OF ENGAGING SAID TAPERED SEAT OF SAID FITTING, SAID SKIRT HAVING INTERNAL FLATS THEREON ADAPTED TO FRICTIONALLY ENGAGE SAID FITTING TO RETAIN SAID SKIRT IN POSITION THEREON, MEANS FOR DRAWING SAID SLEEVE AND SAID FITTING TOGETHER AND CLAMPING THE FLARED END OF THE TUBE AND SAID SEAL BETWEEN THEM, SAID SEAL BEING OF A DUCTILE MATERIAL WHEREBY SAID SEAL WILL FILL ANY VOIDS BETWEEN THE INNER FACE OF SAID FLARED TUBE AND SAID SEAT.
Claim 2
Dependent Claim
188 words
A FLARED TUBE COUPLING FOR A TUBE WITH A FLARED END PORTION COMPRISING A SLEEVE ADAPTED TO FIT OVER THE TUBE AND TO ABUT THE OUTER SURFACE OF SAID FLARED END PORTION, SAID SLEEVE HAVING AN INTERNAL ANNULAR FLARED CONICAL SURFACE AT THE ABUTTING END THEREOF, A FITTING WITH A BORE THEREIN ADAPTED TO MATE WITH THE BORE OF SAID TUBE, SAID FITTING HAVING AN END PORTION WITH A TAPERED SEAT FOR ENGAGEMENT WITH THE FLARED INTERNAL FACE ON THE TUBE AND AN OUTER CYLINDRICAL SURFACE JOINING SAID TAPERED SEAT, A CONICAL METALLIC WASHER SEAL WITH A CYLINDRICAL SKIRT ADAPTED TO FIT OVER A PORTION OF SAID CYLINDRICAL SURFACE AND A CONICAL PORTION CAPABLE OF ENGAGING SAID TAPERED SEAT OF SAID FITTING, SAID SKIRT HAVING INTERNAL FLATS THEREON ADAPTED TO FRICTIONALLY ENGAGE SAID FITTING TO RETAIN SAID SKIRT IN POSITION THEREON, MEANS FOR DRAWING SAID SLEEVE AND SAID FITTING TOGETHER AND CLAMPING THE FLARED END OF THE TUBE AND SAID SEAL BETWEEN THEM, SAID SEAL BEING OF A DUCTILE MATERIAL WHEREBY SAID SEAL WILL FILL ANY VOIDS BETWEEN THE INNER FACE OF SAID FLARED TUBE AND SAID SEAT.
References Cited (Backward Citations)
US954549A
Cited
GB190924405A
Cited
US1426724A
Cited
US1992312A
Cited
US2357669A
Cited
US2424727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-30 | 1967-12-30 | 1968-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-30 | 1971-12-30 | 1972-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-30 | 1975-12-30 | 1976-06-30 | $7700.00 | Window Closed / Lapsed |