US3349412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasket ferrule
Assignee: De Best Manufacturing Co Inc
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Filing: 1964-03-19
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Granted: 1967-10-31
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Expires: 1984-03-19
Abstract
No abstract record available.
Inventors
- 👤 Charles H Schwartz
- 👤 George F Smthy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:45
CPC Classifications
E; E03; E03D; E03D11/00; E03D11/13; E03D11/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
195 words
IN A DEVICE FOR SEALING THE CONNECTION BETWEEN A TOILET BOWL OUTLET AND THE UPPER END OF A SOIL PIPE THAT IS SURROUNDED BY A FLANGED COLLAR, WHEREIN THE DEVICE INCLUDES A RING OF WAX-LIKE MATERIAL TO EMBRACE THE TOILET BOWL OUTLET IN ABUTMENT WITH THE UPPER SURFACE OF THE FLANGED COLLAR AND FURTHER INCLUDES A FERRULE OF CHEMICALLY INERT PLASTIC MATERIAL ATTACHED TO THE RING AND EXTENDING DOWNWARD THEREFROM FOR SEALING ENGAGEMENT WITH THE INTERIOR OF THE SOIL PIPE, THE IMPROVEMENT COMPRISING: THE FERRULE BEING OF STEPPED CONFIGURATION WITH AN UPPER CIRCUMFERENTIAL PORTION OF RELATIVELY LARGE DIAMETER TO FIT INTO A CAST IRON SOIL PIPE OF RELATIVELY LARGE DIAMETER AND A LOWER CIRCUMFERENTIAL PORTION OF SMALLER DIAMETER TO FIT INTO A SMALLER COPPER SOIL PIPE, WHEREBY THE SEALING DEVICE MAY BE USED WITH THE TWO SIZES OF SOIL PIPE INTERCHANGEABLY, THE UPPER CIRCUMFERENTIAL PORTION OF THE FERRULE HAVING AT LEAST ONE INTEGRAL OUTER CIRCUMFERENTIAL FLANGE FOR SEALING ENGAGEMENT WITH THE INNER SURFACE OF THE LARGER SOIL PIPE. THE LOWER CIRCUMFERENTIAL PORTION OF THE FERRULE HAVING AT LEAST ONE INTEGRAL OUTER CIRCUMFERENTIAL FLANGE FOR SEALING ENGAGEMENT WITH THE INNER SURFACE OF THE SMALLER SOIL PIPE.
Claim 2
Dependent Claim
195 words
IN A DEVICE FOR SEALING THE CONNECTION BETWEEN A TOILET BOWL OUTLET AND THE UPPER END OF A SOIL PIPE THAT IS SURROUNDED BY A FLANGED COLLAR, WHEREIN THE DEVICE INCLUDES A RING OF WAX-LIKE MATERIAL TO EMBRACE THE TOILET BOWL OUTLET IN ABUTMENT WITH THE UPPER SURFACE OF THE FLANGED COLLAR AND FURTHER INCLUDES A FERRULE OF CHEMICALLY INERT PLASTIC MATERIAL ATTACHED TO THE RING AND EXTENDING DOWNWARD THEREFROM FOR SEALING ENGAGEMENT WITH THE INTERIOR OF THE SOIL PIPE, THE IMPROVEMENT COMPRISING: THE FERRULE BEING OF STEPPED CONFIGURATION WITH AN UPPER CIRCUMFERENTIAL PORTION OF RELATIVELY LARGE DIAMETER TO FIT INTO A CAST IRON SOIL PIPE OF RELATIVELY LARGE DIAMETER AND A LOWER CIRCUMFERENTIAL PORTION OF SMALLER DIAMETER TO FIT INTO A SMALLER COPPER SOIL PIPE, WHEREBY THE SEALING DEVICE MAY BE USED WITH THE TWO SIZES OF SOIL PIPE INTERCHANGEABLY, THE UPPER CIRCUMFERENTIAL PORTION OF THE FERRULE HAVING AT LEAST ONE INTEGRAL OUTER CIRCUMFERENTIAL FLANGE FOR SEALING ENGAGEMENT WITH THE INNER SURFACE OF THE LARGER SOIL PIPE. THE LOWER CIRCUMFERENTIAL PORTION OF THE FERRULE HAVING AT LEAST ONE INTEGRAL OUTER CIRCUMFERENTIAL FLANGE FOR SEALING ENGAGEMENT WITH THE INNER SURFACE OF THE SMALLER SOIL PIPE.
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) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |