US3217246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for determining flaws in the insulation of an insulated wire by passing the wire through a mercury bath
Assignee: General Precision Inc
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Filing: 1962-11-06
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Granted: 1965-11-09
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Expires: 1982-11-06
Abstract
No abstract record available.
Inventors
- 👤 Fred T Kallet
- 👤 Retalis Harry
- 👤 Vincent J Blanco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:22
CPC Classifications
G; G01; G01R; G01R31/00; G01R31/50; G01R31/58; G01R31/59
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
AN APPARATUS FOR DETERMINING FLAWS IN THE INSULATION OF AN INSULATED WIRE, COMPRISING IN COMBINATION, TAKE-UP AND DE-REELING SPOOLS FOR PASSING THE WIRE TO BE TESTED THROUGH THE APPARATUS INCLUDING ELECTRICAL CONTACT MEANS TO WHICH ONE END OF SAID WIRE IS TO BE LINKED AND CAM MEANS ON SAID TAKE-UP SPOOL; A MERCURY BATH ASSEMBLY IN SAID APPARATUS TO PROVIDE AN OPEN CIRCUIT WHEN THE INSULATION ON A PORTION OF THE WIRE IN SAID MERCURY BATH HAS NO FLAWS BUT PROVIDING AN ELECTRICAL OUTPUT WHEN SAID WIRE INSULATION IS DEFECTIVE; A CONTROL CIRCUIT COUPLED TO SAID MERCURY BATH, INCLUDING A CONNECTION TO SAID CONTACT MEANS LINKED TO SAID WIRE; LAMP MEANS ENERGIZED EACH TIME THE ELECTRIC OUTPUT IN SAID CONTROL CIRCUIT REACHES A PREDETERMINED MAGNITUDE AS A RESULT OF FLAWS IN SAID WIRE; PHOTOCELL MEANS ENERGIZED BY SAID LAMP MEANS; COUNTER MEANS ENERGIZED BY SAID PHOTOCELL MEANS, INCLUDING A THYRATRON ENERGIZED BY SAID PHOTOCELL AND A COUNTER ENERGIZED BY SAID THYRATRON; RELAY MEANS FOR DEACTIVATING THE THYRATRON AFTER IT HAS ACTIVATED SAID COUNTER; MEANS FOR VARYING THE RESISTANCE OF SAID CIRCUIT IN A MANNER TO CONTROL THE INSULATION FLAWS WHICH ARE COUNTED;
Claim 2
Independent Claim
192 words
AN APPARATUS FOR DETERMINING FLAWS IN THE INSULATION OF AN INSULATED WIRE, COMPRISING IN COMBINATION, TAKE-UP AND DE-REELING SPOOLS FOR PASSING THE WIRE TO BE TESTED THROUGH THE APPARATUS INCLUDING ELECTRICAL CONTACT MEANS TO WHICH ONE END OF SAID WIRE IS TO BE LINKED AND CAM MEANS ON SAID TAKE-UP SPOOL; A MERCURY BATH ASSEMBLY IN SAID APPARATUS TO PROVIDE AN OPEN CIRCUIT WHEN THE INSULATION ON A PORTION OF THE WIRE IN SAID MERCURY BATH HAS NO FLAWS BUT PROVIDING AN ELECTRICAL OUTPUT WHEN SAID WIRE INSULATION IS DEFECTIVE; A CONTROL CIRCUIT COUPLED TO SAID MERCURY BATH, INCLUDING A CONNECTION TO SAID CONTACT MEANS LINKED TO SAID WIRE; LAMP MEANS ENERGIZED EACH TIME THE ELECTRIC OUTPUT IN SAID CONTROL CIRCUIT REACHES A PREDETERMINED MAGNITUDE AS A RESULT OF FLAWS IN SAID WIRE; PHOTOCELL MEANS ENERGIZED BY SAID LAMP MEANS; COUNTER MEANS ENERGIZED BY SAID PHOTOCELL MEANS, INCLUDING A THYRATRON ENERGIZED BY SAID PHOTOCELL AND A COUNTER ENERGIZED BY SAID THYRATRON; RELAY MEANS FOR DEACTIVATING THE THYRATRON AFTER IT HAS ACTIVATED SAID COUNTER; MEANS FOR VARYING THE RESISTANCE OF SAID CIRCUIT IN A MANNER TO CONTROL THE INSULATION FLAWS WHICH ARE COUNTED;
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) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |