US3230447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic plating monitoring device
Assignee: Bunker Ramo Corp
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Filing: 1961-11-01
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Granted: 1966-01-18
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Expires: 1981-11-01
Abstract
No abstract record available.
Inventors
- 👤 Cann Leopold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:54
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/1601; C23C18/1633; C23C18/1675; C23C18/1619; C23C18/1628
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A DEVICE FOR MONITORING THE MAGNETIC QUALITIES OF A MAGNETIC MATERIAL PLATED FROM AN ELECTROLESS BATH ON THE SURFACE OF A BASE MEMBER DURING THE PLATING PROCESS, COMPRISING A TEST ELEMENT OF THE SAME MATERIAL AND HAVING A SURFACE PREPARED FOR PLATING IN THE SAME FASHION AS THE BASE MEMBER, AN ARRANGEMENT FOR IMMERSING THE TEST ELEMENT IN A BATH HAVING THE SAME COMPOSITION AS THE ELECTROLESS BATH, AND A B-H LOOP TRACER COIL POSITIONED SO AS TO ENCOMPASS THE TEST ELEMENT IN A MAGNETIC FIELD ORIGINATING IN THE TRACER COIL, THE COIL INCLUDING INSULATING MEANS FOR PROTECTION FROM SAID ELECTROLESS BATH, IN ORDER THAT THE COIL MAY BE ENERGIZED IN CONJUCTION WITH AN OSCILLOSCOPE UPON APPLICATION OF AN ELECTRIC DRIVE TO INDICATE THE HYSTERESIS LOOP CHARACTERISTIC OF A MAGNETIC COATING BEING PLATED ON SAID TEST ELEMENT.
Claim 2
Independent Claim
137 words
A DEVICE FOR MONITORING THE MAGNETIC QUALITIES OF A MAGNETIC MATERIAL PLATED FROM AN ELECTROLESS BATH ON THE SURFACE OF A BASE MEMBER DURING THE PLATING PROCESS, COMPRISING A TEST ELEMENT OF THE SAME MATERIAL AND HAVING A SURFACE PREPARED FOR PLATING IN THE SAME FASHION AS THE BASE MEMBER, AN ARRANGEMENT FOR IMMERSING THE TEST ELEMENT IN A BATH HAVING THE SAME COMPOSITION AS THE ELECTROLESS BATH, AND A B-H LOOP TRACER COIL POSITIONED SO AS TO ENCOMPASS THE TEST ELEMENT IN A MAGNETIC FIELD ORIGINATING IN THE TRACER COIL, THE COIL INCLUDING INSULATING MEANS FOR PROTECTION FROM SAID ELECTROLESS BATH, IN ORDER THAT THE COIL MAY BE ENERGIZED IN CONJUCTION WITH AN OSCILLOSCOPE UPON APPLICATION OF AN ELECTRIC DRIVE TO INDICATE THE HYSTERESIS LOOP CHARACTERISTIC OF A MAGNETIC COATING BEING PLATED ON SAID TEST ELEMENT.
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) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |