US3315348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vessel lining method
Assignee: Dow Chemical Co
•
Filing: 1964-01-10
•
Granted: 1967-04-25
•
Expires: 1984-01-10
Abstract
No abstract record available.
Inventors
- 👤 John T Donovan
- 👤 William F Mick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:34
CPC Classifications
B; B29; B29C; B29C63/00; B29C63/0065; B29C63/0069; B29C63/48; Y; Y10; Y10S; Y10S228/00; Y10S228/903; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49906; Y10T29/49908; Y10T29/49925; Y10T29/49927
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
AN IMPROVED METHOD FOR BONDING A SYNTHETIC RESILIENT PLASTIC LINER TO THE INSIDE SURFACE OF A TUBULAR SHAPED UNIFORMLY METAL CONTAINING VESSEL COMPRISING THE STEPS OF SCORING THE INSIDE SURFACE OF SAID VESSEL TO FORM INDENTATIONS THEREON, INSERTING A TUBULAR SYNTHETIC RESILIENT PLASTIC LINER WITHIN SAID VESSEL, SWAGING THE VESSEL ONTO SAID LINER TO CAUSE COMPRESSIVE STRESSES WITHIN SAID LINER, HEATING SAID VESSEL AND SAID LINER AT A RATE SUFFICIENT TO MELT THE INTERFACE LAYER OF THE LINER ADJACENT SAID VESSEL TO CAUSE A SYNETHETIC RESILINT FLOW OF SAID INTERFACE LAYER INTO THE SCORED IDENTATIONS BUT INSUFFICIENT TO RELAX SAID COMPRESSIVE STRESSES WITHIN SAID LINER TO EFFECT A PERMANENT BOND OF SAID LINER TO SAID VESSEL.
Claim 2
Dependent Claim
116 words
AN IMPROVED METHOD FOR BONDING A SYNTHETIC RESILIENT PLASTIC LINER TO THE INSIDE SURFACE OF A TUBULAR SHAPED UNIFORMLY METAL CONTAINING VESSEL COMPRISING THE STEPS OF SCORING THE INSIDE SURFACE OF SAID VESSEL TO FORM INDENTATIONS THEREON, INSERTING A TUBULAR SYNTHETIC RESILIENT PLASTIC LINER WITHIN SAID VESSEL, SWAGING THE VESSEL ONTO SAID LINER TO CAUSE COMPRESSIVE STRESSES WITHIN SAID LINER, HEATING SAID VESSEL AND SAID LINER AT A RATE SUFFICIENT TO MELT THE INTERFACE LAYER OF THE LINER ADJACENT SAID VESSEL TO CAUSE A SYNETHETIC RESILINT FLOW OF SAID INTERFACE LAYER INTO THE SCORED IDENTATIONS BUT INSUFFICIENT TO RELAX SAID COMPRESSIVE STRESSES WITHIN SAID LINER TO EFFECT A PERMANENT BOND OF SAID LINER TO SAID VESSEL.
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) | 1970-04-24 | 1970-10-24 | 1971-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-24 | 1974-10-24 | 1975-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-24 | 1978-10-24 | 1979-04-25 | $7700.00 | Window Closed / Lapsed |