US3420274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube end fitting
Assignee: Quickfit and Quartz Ltd
•
Filing: 1966-09-06
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Granted: 1969-01-07
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Expires: 1986-09-06
Abstract
No abstract record available.
Inventors
- 👤 Roger A Buttery
- 👤 Thomas Turnbull
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:47
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/02; F16L37/04; F16L37/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A TUBE END FITTING COMPRISING A SEALING ELEMENT HAVING A MAIN BODY PORTION AND A DEFORMABLE WALL DEFINING A RECESS IN SAID ELEMENT, SAID DEFORMABLE WALL BEING DEMENSIONED TO FIT CLOSELY BUT SLIDABLY WITHING A CYLINDRICAL TUBE IN THE UNDERFORMED STATE AND BEING OF INCREASING THICKNESS TOWARDS ITS FREE EDGE, AN AXIALLY BORED EXPANDER SLEEVE HAVING AN OUTWARDLY FLARED EXTENSION ADAPTED TO FIT WITHIN SAID RECESS, A LOCKING MEMBER IN THE BORE OF SAID SLEEVE AND EXTENDING INTO SAID RECESS OF SAID EXPANDER MENT, AND INTERENGAGING MEANS COUPLING SAID EXPANDER SLEEVE WITH SAID LOCKING MEMBER TO ENABLE THE LOCKING MEMBER TO BE TEMPORARILY SECURED IN THE SLEEVE IN AN OPERATIVE POSITION, SAID INTERENGATING MEANS CAUSING SEPARATING AXIAL MOVEMENT BETWEEN SAID SEALING ELEMENT AND SAID EXPANDER SLEEVE WHEREBY SAID DEFORMABLE WALL SIDES
Claim 2
Dependent Claim
131 words
A TUBE END FITTING COMPRISING A SEALING ELEMENT HAVING A MAIN BODY PORTION AND A DEFORMABLE WALL DEFINING A RECESS IN SAID ELEMENT, SAID DEFORMABLE WALL BEING DEMENSIONED TO FIT CLOSELY BUT SLIDABLY WITHING A CYLINDRICAL TUBE IN THE UNDERFORMED STATE AND BEING OF INCREASING THICKNESS TOWARDS ITS FREE EDGE, AN AXIALLY BORED EXPANDER SLEEVE HAVING AN OUTWARDLY FLARED EXTENSION ADAPTED TO FIT WITHIN SAID RECESS, A LOCKING MEMBER IN THE BORE OF SAID SLEEVE AND EXTENDING INTO SAID RECESS OF SAID EXPANDER MENT, AND INTERENGAGING MEANS COUPLING SAID EXPANDER SLEEVE WITH SAID LOCKING MEMBER TO ENABLE THE LOCKING MEMBER TO BE TEMPORARILY SECURED IN THE SLEEVE IN AN OPERATIVE POSITION, SAID INTERENGATING MEANS CAUSING SEPARATING AXIAL MOVEMENT BETWEEN SAID SEALING ELEMENT AND SAID EXPANDER SLEEVE WHEREBY SAID DEFORMABLE WALL SIDES
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) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |