US3306798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and device for producing electrical thin-foil capacitors
Assignee: Siemens and Halske AG
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Filing: 1962-10-30
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Granted: 1967-02-28
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Expires: 1982-10-30
Abstract
No abstract record available.
Inventors
- 👤 Gaenge Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:30
CPC Classifications
H; H01; H01G; H01G13/00; H01G13/02; H01G4/00; H01G4/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
IN THE ART OF MAKING WRAPPED ELECTRICAL THIN-FOIL CAPACITORS EMPLOYING A PLURALITY OF THIN FOIL BANDS WHICH ARE PRODUCED BY PLACING UPON AUXILIARY CARRIER FOILS VARNISH LAYERS ON WHICH ARE VAPORIZED METAL COATINGS AND FROM WHICH COATINGS THE CARRIER FOILS ARE REMOVED PRIOR TO THE WRAPPING OPERATION, THE METHOD OF PREPARING SAID THIN FOIL BANDS FOR WRAPPING COMPRISING THE STEPS OF SUPPORTING AT LEAST TWO THIN FOIL BANDS WHILE IN UNWRAPPED STRIP FORM WITH A FACE OF THE RESPECTIVE VARNISH LAYER OF ONE BAND IN CONTACTING RELATION WITH A FACE OF ANOTHER SUCH BAND, AND APPLYING HEAT TO AT LEAST ONE OF SAID BANDS WHILE IN SUCH UNWOUND CONTACTING RELATION TO EFFECT A BONDING BETWEEN THE CONTACTING FACES OF SAID BANDS PRIOR TO THE WINDING THEREOF TO FORM A CAPACITOR.
Claim 2
Dependent Claim
130 words
IN THE ART OF MAKING WRAPPED ELECTRICAL THIN-FOIL CAPACITORS EMPLOYING A PLURALITY OF THIN FOIL BANDS WHICH ARE PRODUCED BY PLACING UPON AUXILIARY CARRIER FOILS VARNISH LAYERS ON WHICH ARE VAPORIZED METAL COATINGS AND FROM WHICH COATINGS THE CARRIER FOILS ARE REMOVED PRIOR TO THE WRAPPING OPERATION, THE METHOD OF PREPARING SAID THIN FOIL BANDS FOR WRAPPING COMPRISING THE STEPS OF SUPPORTING AT LEAST TWO THIN FOIL BANDS WHILE IN UNWRAPPED STRIP FORM WITH A FACE OF THE RESPECTIVE VARNISH LAYER OF ONE BAND IN CONTACTING RELATION WITH A FACE OF ANOTHER SUCH BAND, AND APPLYING HEAT TO AT LEAST ONE OF SAID BANDS WHILE IN SUCH UNWOUND CONTACTING RELATION TO EFFECT A BONDING BETWEEN THE CONTACTING FACES OF SAID BANDS PRIOR TO THE WINDING THEREOF TO FORM A CAPACITOR.
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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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |