US3233447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leak indicator system
Assignee: Individual
•
Filing: 1963-04-24
•
Granted: 1966-02-08
•
Expires: 1983-04-24
Abstract
No abstract record available.
Inventors
- 👤 Earl J Horrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 22:14
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A METHOD FOR LOCATING AND EVALUATING LEAKAGE IN AN HYDRAULIC ACTUATOR SYSTEM OF THE TYPE HAVING COMPONENT GROUPS OF HYDRAULIC OPERATIONAL MEMBERS INTERCONNECTED BY PRESSURE LINES AND HAVING, IN A SELECTED PRESSURE LINE, A SHUT-OFF MEANS AND A DIRECTIONAL, FLOWMEASURING BYPASS MEANS SHUNTING THE SHUT-OFF MEANS AND INCLUDING THE STEPS OF: (A) ESTABLISHING THE SYSTEM AT A STATE OF PRESSURIZED STATIC EQUILIBRIUM, WHEREIN ALL FLOW THROUGH THE LINES IS HALTED EXCEPT FOR FLOW FROM LEAKAGE EFFECTS; (B) CLOSING THE SHUT-OFF MEANS IN SAID SELECTED PRESSURE LINE TO FORCE ANY LEAKAGE-EFFECT FLOW IN THE LINE THROUGH THE BYPASS; AND (C) MEASURING THE AMOUNT AND DIRECTION OF THE LEAKAGE-EFFECT FLOW IN SAID BYPASS.
Claim 2
Independent Claim
111 words
A METHOD FOR LOCATING AND EVALUATING LEAKAGE IN AN HYDRAULIC ACTUATOR SYSTEM OF THE TYPE HAVING COMPONENT GROUPS OF HYDRAULIC OPERATIONAL MEMBERS INTERCONNECTED BY PRESSURE LINES AND HAVING, IN A SELECTED PRESSURE LINE, A SHUT-OFF MEANS AND A DIRECTIONAL, FLOWMEASURING BYPASS MEANS SHUNTING THE SHUT-OFF MEANS AND INCLUDING THE STEPS OF: (A) ESTABLISHING THE SYSTEM AT A STATE OF PRESSURIZED STATIC EQUILIBRIUM, WHEREIN ALL FLOW THROUGH THE LINES IS HALTED EXCEPT FOR FLOW FROM LEAKAGE EFFECTS; (B) CLOSING THE SHUT-OFF MEANS IN SAID SELECTED PRESSURE LINE TO FORCE ANY LEAKAGE-EFFECT FLOW IN THE LINE THROUGH THE BYPASS; AND (C) MEASURING THE AMOUNT AND DIRECTION OF THE LEAKAGE-EFFECT FLOW IN SAID BYPASS.
References Cited (Backward Citations)
US2831351A
Cited
US2936611A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |