US3223114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic shut-off for pipeline
Assignee: Individual
•
Filing: 1963-03-19
•
Granted: 1965-12-14
•
Expires: 1983-03-19
Abstract
No abstract record available.
Inventors
- 👤 Homer J Shafer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:35
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/122; F16K31/36; F16K31/363; F16K47/00; F16K47/02; F16K47/023; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
AN AUTOMATIC SHUT-OFF SYSTEM FOR A LIQUID TRANSPORTING PIPELINE COMPRISING, A VALVE MOUNTED ON SAID PIPELINE, A HYDRAULIC PISTON MOTOR OPERATIVELY CONNECTED TO SAID VALVE FOR SELECTIVELY CONTROLLING THE FLOW OF LIQUID IN SAID PIPELINE, A PRESSURE SENSING CYLINDER HAVING A PISTON THEREIN, A CONDUIT CONNECTING SAID PRESSURE SENSING CYLIDNER AND SAID PIPELINE AT A POINT UPSTREAM OF SAID VALVE, A SECOND CONDUIT CONNECTING SAID PRESSURE SENSING CYLINDER AND SAID HYDRALIC PISTON MOTOR, A HYDRAULIC RESERVOIR CYLINDER HAVING A PISTON THEREIN, A CONDUIT CONNECTING SAID HYDRAULIC RESERVOIR CYLINDER
Claim 2
Dependent Claim
88 words
AN AUTOMATIC SHUT-OFF SYSTEM FOR A LIQUID TRANSPORTING PIPELINE COMPRISING, A VALVE MOUNTED ON SAID PIPELINE, A HYDRAULIC PISTON MOTOR OPERATIVELY CONNECTED TO SAID VALVE FOR SELECTIVELY CONTROLLING THE FLOW OF LIQUID IN SAID PIPELINE, A PRESSURE SENSING CYLINDER HAVING A PISTON THEREIN, A CONDUIT CONNECTING SAID PRESSURE SENSING CYLIDNER AND SAID PIPELINE AT A POINT UPSTREAM OF SAID VALVE, A SECOND CONDUIT CONNECTING SAID PRESSURE SENSING CYLINDER AND SAID HYDRALIC PISTON MOTOR, A HYDRAULIC RESERVOIR CYLINDER HAVING A PISTON THEREIN, A CONDUIT CONNECTING SAID HYDRAULIC RESERVOIR CYLINDER
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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) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |