US3270176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impeder device for improving radio-frequency induction welding
Assignee: Continental Can Co Inc
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Filing: 1964-08-18
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Granted: 1966-08-30
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Expires: 1984-08-18
Abstract
No abstract record available.
Inventors
- 👤 Roger M O'neill
- 👤 Glenn R Mohr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:31
CPC Classifications
B; B23; B23K; B23K13/00; B23K13/01; B23K13/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
IN A RADIO-FREQUENCY WELDING APPARATUS HAVING AN INDUCTION COIL AND A HORN ABOUT WHICH OPPOSITE EDGE PORTIONS OF CONTINUOUS STRIP MATERIAL ARE POSITIONED FOR WELDING ONE TO ANOTHER AND FOR SUPPORTING THE FIRST OF A PAIR OF FORGING ROLLS, THE IMPROVEMENT COMPRISING A HOUSING FOR SAID FIRST FORGING ROLL CONSTRUCTED OF A MATERIAL HAVING A HIGH MAGNETIC PERMEABILITY AND LOW ELECTRICAL CONDUCTIVITY.
Claim 2
Dependent Claim
62 words
IN A RADIO-FREQUENCY WELDING APPARATUS HAVING AN INDUCTION COIL AND A HORN ABOUT WHICH OPPOSITE EDGE PORTIONS OF CONTINUOUS STRIP MATERIAL ARE POSITIONED FOR WELDING ONE TO ANOTHER AND FOR SUPPORTING THE FIRST OF A PAIR OF FORGING ROLLS, THE IMPROVEMENT COMPRISING A HOUSING FOR SAID FIRST FORGING ROLL CONSTRUCTED OF A MATERIAL HAVING A HIGH MAGNETIC PERMEABILITY AND LOW ELECTRICAL CONDUCTIVITY.
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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |