US3346809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cable insulation test apparatus including a fluid containing cylindrical test bushing having a plurality of electrodes and condenser stacks positioned along a pair of insulating tubes connecting the electrodes
Assignee: General Cable Corp
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Filing: 1966-06-28
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Granted: 1967-10-10
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Expires: 1986-06-28
Abstract
No abstract record available.
Inventors
- 👤 Bader George
- 👤 Jr George S Eager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:50
CPC Classifications
G; G01; G01R; G01R31/00; G01R31/50; G01R31/58; G01R31/59
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
APPARATUS FOR CONTINUOUSLY MEASURING THE IONIZATION INCEPTION VOLTAGE OR THE IONIZATION EXTINCTION VOLTAGE OF AN INSULATED CONDUCTOR AS THE CONDUCTOR IS MOVED LONGITUDINALLY THROUGH THE APPARATUS COMPRISING, IN COMBINATION, A CYLINDRICAL TEST BUSHING INCLUDING A CENTRALLY LOCATED HIGH VOLTAGE CYLINDER ELECTRODE AND TWO GROUNDED CYLINDRICAL ELECTRODES ARRANGED IN ALIGNED RELATION WITH SAID SPACED FROM THE HIGH VOLTAGE ELECTRODE ON OPPOSITE SIDES THEREOF, A HIGH VOLTAGE POWER FREQUENCY SOURCE CONNECTED BETWEEN THE HIGH VOLTAGE ELECTRODE AND GROUND, INSULATING TUBES EXTENDING BETWEEN THE HIGH VOLTAGE ELECTRODE AND THE GROUNDED ELECTRODES AND CONNECTED THERETO IN FLUID-TIGHT RELATION, CLOSURES FOR THE ENDS OF THE TEST BUSHING PROVIDED WITH MEANS TO PERMIT AN INSULATED CONDUCTOR TO BE MOVED COAXIALLY THROUGH THE TEST BUSHING, HIGH ELECTRIC CONSTANT LIQUID FILLING THE SPACE WITHIN THE TEST BUSHING THROUGH WICH THE INSULATED CONDUCTOR MOVES, IONIZATION VOLTAGE MEASURING APPARATUS, CON-
Claim 2
Dependent Claim
140 words
APPARATUS FOR CONTINUOUSLY MEASURING THE IONIZATION INCEPTION VOLTAGE OR THE IONIZATION EXTINCTION VOLTAGE OF AN INSULATED CONDUCTOR AS THE CONDUCTOR IS MOVED LONGITUDINALLY THROUGH THE APPARATUS COMPRISING, IN COMBINATION, A CYLINDRICAL TEST BUSHING INCLUDING A CENTRALLY LOCATED HIGH VOLTAGE CYLINDER ELECTRODE AND TWO GROUNDED CYLINDRICAL ELECTRODES ARRANGED IN ALIGNED RELATION WITH SAID SPACED FROM THE HIGH VOLTAGE ELECTRODE ON OPPOSITE SIDES THEREOF, A HIGH VOLTAGE POWER FREQUENCY SOURCE CONNECTED BETWEEN THE HIGH VOLTAGE ELECTRODE AND GROUND, INSULATING TUBES EXTENDING BETWEEN THE HIGH VOLTAGE ELECTRODE AND THE GROUNDED ELECTRODES AND CONNECTED THERETO IN FLUID-TIGHT RELATION, CLOSURES FOR THE ENDS OF THE TEST BUSHING PROVIDED WITH MEANS TO PERMIT AN INSULATED CONDUCTOR TO BE MOVED COAXIALLY THROUGH THE TEST BUSHING, HIGH ELECTRIC CONSTANT LIQUID FILLING THE SPACE WITHIN THE TEST BUSHING THROUGH WICH THE INSULATED CONDUCTOR MOVES, IONIZATION VOLTAGE MEASURING APPARATUS, CON-
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) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |