US3057758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for measuring and increasing flow through pipelines
Assignee: Individual
•
Filing: 1960-10-26
•
Granted: 1962-10-09
•
Expires: 1980-10-26
Abstract
No abstract record available.
Inventors
- 👤 Harry H Walker
- 👤 John A Christensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:29
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/704; B; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/04; B08B9/053; B08B9/055; B08B9/0555; B08B9/0556; Y; Y10; Y10S; Y10S116/00; Y10S116/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A METHOD OF CLEANING A PIPELINE WITH SOLUBLE PLUGS OF A SIZSE CORRESPONDING TO THE INTERNAL DIAMET OF A PIPELINE, INCLUDING THE STAEPS OF BYPASSING A PORTION OF THE PETROLEUM PASSING THROUGH A PIPELINE THROUGH A LINE HAVING AN INTERNAL DIAMETER CORRESPONDING TO THE DIAMETER OF THE PIPELINE, HOLDING THE PETROLEUM BYPASSING OUT OF THE MAIN PIPELINE FOR A PRESELECTED INTERVAL OF TIME, INJECTING STEAM INTO THE PETROLEUM BYPASSED, SUBJECTING THE MIXED PETROLEUM AND WATAER VAPOR CONDENSED FROM THE STEAM TO TEMPERATURES BELOW FREEZING AND FOR A PERIOD OF TIME SUFFICIENT TO COAGULATE THE PETROLEUM AND WATER VAPOR INTO A PLUG OF SOLID-LIKE FORMATION ANF OF A SIZE CORRESPONDING TO THE CROSS-SECTAIONAL AREA OF THE PIPELINE, AND THEREAFTER RELEASING SAID PLUG FOR FLOW FROM SAID BYPASS THRAOUGH THE MAIN PORTION OF SAID PIPELINE.
Claim 2
Independent Claim
133 words
A METHOD OF CLEANING A PIPELINE WITH SOLUBLE PLUGS OF A SIZSE CORRESPONDING TO THE INTERNAL DIAMET OF A PIPELINE, INCLUDING THE STAEPS OF BYPASSING A PORTION OF THE PETROLEUM PASSING THROUGH A PIPELINE THROUGH A LINE HAVING AN INTERNAL DIAMETER CORRESPONDING TO THE DIAMETER OF THE PIPELINE, HOLDING THE PETROLEUM BYPASSING OUT OF THE MAIN PIPELINE FOR A PRESELECTED INTERVAL OF TIME, INJECTING STEAM INTO THE PETROLEUM BYPASSED, SUBJECTING THE MIXED PETROLEUM AND WATAER VAPOR CONDENSED FROM THE STEAM TO TEMPERATURES BELOW FREEZING AND FOR A PERIOD OF TIME SUFFICIENT TO COAGULATE THE PETROLEUM AND WATER VAPOR INTO A PLUG OF SOLID-LIKE FORMATION ANF OF A SIZE CORRESPONDING TO THE CROSS-SECTAIONAL AREA OF THE PIPELINE, AND THEREAFTER RELEASING SAID PLUG FOR FLOW FROM SAID BYPASS THRAOUGH THE MAIN PORTION OF SAID PIPELINE.
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) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |