US3563825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for insulating pipelines wherein more insulating material is above the center line of the pipe than below the center line
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1965-01-26
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Granted: 1971-02-16
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Expires: 1985-01-26
Abstract
Abstract A METHOD OF APPLYING A POURABLE OR FOAMABLE INSULATION TO A PIPE WHEREIN THE INSULATION IS FLOWED INTO AN OUTER WRAPPER SHEET UNDERLYING THE PIPE, AND THE WRAPPER SHEET IS THEREAFTER JOINED ALONG ITS LONGITUDINALLY EDGES TO TIGHTLY ENCLOSES THE INSULATION ABOUT THE PIPE. THE METHOD MAY INCLUDE THE PRELIMINARY STEP OF ALSO HELICALLY WRAPPING THE PIPE WITH AN INSULAION TAPE. PREFERABLY, THE IN- SULATION IS FLOWED INTO THE WRAPPER IN SUCH A WAY AS TO PLACE A GREATER PROPORTION OF THE INSULATION ON ONE SIDE OF THE PIPE THAN ON THE OTHER TO THEREBY OBTAIN MAXIMUM INSULATION VALUE PER UNIT MASS OF INSULATION.
Inventors
- 👤 Marnell Albin Segura
- 👤 Howard T Oakley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:47
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/10; F16L59/04; F16L59/14; F16L59/143; F16L59/15; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T156/1033; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1376; Y10T428/24; Y10T428/24479; Y10T428/24488; Y10T428/24744
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |