US3235293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass pipe coupling
Assignee: OI Glass Inc
•
Filing: 1965-01-22
•
Granted: 1966-02-15
•
Expires: 1985-01-22
Abstract
No abstract record available.
Inventors
- 👤 Harry F Condon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:29
CPC Classifications
F; F16; F16L; F16L49/00; F16L49/04; Y; Y10; Y10T; Y10T403/00; Y10T403/45; Y10T403/451; Y10T403/452
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A GLASS PIPE JOINT COMPRISING, IN COMBINATION: TWO GLASS PIPE SECTIONS TERMINATING IN THICKENED FLANGED END PORTIONS DISPOSED IN ADJACENT NONCONTACTING RELATION AND EACH OF WHICH HAS A CONVEXLY-CURVED ANNULAR SEALING SURFACE; AN ANNULAR GASKET MEMBER COMPOSED OF A CHEMICALLYRESISTANT MATERIAL, HAVING A GENERALLY V-SHAPED CROSS-SECTIONAL CONTOUR DISPOSED BETWEEN THE SEALING EDGES OF THE JUXTAPOSED FLANGED PIPE ENDS AND HAVING SEALING SURFACES WHICH ARE INITIALLY STRAIGHT IN AXIAL SECTION FOR CONTACTING SAID CONVEXLY-CURVED SEALING SURFACES, THE SEALING SURFACES OF THE GASKET MEMBER EXTENDING FROM CLOSELY ADJACENT POSITIONS RADIALLY INTERIORLY OF AND AXIALLY BETWEEN THE SEALING SURFACES OF THE PIPE ENDS TO POSITIONS RADIALLY AND AXIALLY BEYOND THE SEALING SURFACES OF THE PIPE ENDS AT ANGLES EACH OF WHICH HAS SUBSTANTIAL RADIAL AND AXIAL COMPONENTS WITH RESPECT TO THE AXIS OF THE ADJACENT GLASS PIPE SECTION; COUPLING MEANS CONSISTING OF A SEGMENTED
Claim 2
Dependent Claim
141 words
A GLASS PIPE JOINT COMPRISING, IN COMBINATION: TWO GLASS PIPE SECTIONS TERMINATING IN THICKENED FLANGED END PORTIONS DISPOSED IN ADJACENT NONCONTACTING RELATION AND EACH OF WHICH HAS A CONVEXLY-CURVED ANNULAR SEALING SURFACE; AN ANNULAR GASKET MEMBER COMPOSED OF A CHEMICALLYRESISTANT MATERIAL, HAVING A GENERALLY V-SHAPED CROSS-SECTIONAL CONTOUR DISPOSED BETWEEN THE SEALING EDGES OF THE JUXTAPOSED FLANGED PIPE ENDS AND HAVING SEALING SURFACES WHICH ARE INITIALLY STRAIGHT IN AXIAL SECTION FOR CONTACTING SAID CONVEXLY-CURVED SEALING SURFACES, THE SEALING SURFACES OF THE GASKET MEMBER EXTENDING FROM CLOSELY ADJACENT POSITIONS RADIALLY INTERIORLY OF AND AXIALLY BETWEEN THE SEALING SURFACES OF THE PIPE ENDS TO POSITIONS RADIALLY AND AXIALLY BEYOND THE SEALING SURFACES OF THE PIPE ENDS AT ANGLES EACH OF WHICH HAS SUBSTANTIAL RADIAL AND AXIAL COMPONENTS WITH RESPECT TO THE AXIS OF THE ADJACENT GLASS PIPE SECTION; COUPLING MEANS CONSISTING OF A SEGMENTED
References Cited (Backward Citations)
GB549183A
Cited
GB735271A
Cited
US2828986A
Cited
DE1037219B
Cited
US3006663A
Cited
US3084959A
Cited
GB913904A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |