US3328554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire heater
Assignee: AT&T Inc
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Filing: 1964-09-25
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Granted: 1967-06-27
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Expires: 1984-09-25
Abstract
No abstract record available.
Inventors
- 👤 Merle C Biskeborn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:43
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/52; C21D9/54; C21D9/56; C21D9/60; Y; Y02; Y02P; Y02P10/00; Y02P10/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
AN APPARATUS FOR HEATING A MOVING WIRE, COMPRISING ELECTRICALLY-CONDUCTIVE WIRE CONTACTING MEANS FOR GUIDING THE WIRE, LOOPING MEANS FOR GUIDING THE WIRE OFF THE CONTACTING MEANS AND BACK TO THE CONTACTING MEANS TO FORM A LOOP, AND ELECTRICAL MEANS INDUCTIVELY LINKED WITH THE WIRE BETWEEN THE LOOPING MEANS AND CONTACTING MEANS FOR INDUCING HEATING CURRENT IN THE WIRE, SAID CONTACTING MEANS DEFINING TWO CYCLICALLY-MOVABLE ELECTRICALLY-INTERCONNECTED AND ELECTRICALLY-CONDUCTIVE ENDLESS PORTIONS JOINED FOR MOVEMENT IN UNISON, ONE OF SAID PORTIONS CONTACTING THE WIRE BEFORE SAID LOOPING MEANS, THE OTHER OF SAID PORTIONS CONTACTING THE WIRE AFTER AND LOOPING MEANS, SAID PORTIONS BEING HEAT-ISOLATED FROM EACH OTHER BUT INDIVIDUALLY HEAT EXPANSIBLE.
Claim 2
Independent Claim
108 words
AN APPARATUS FOR HEATING A MOVING WIRE, COMPRISING ELECTRICALLY-CONDUCTIVE WIRE CONTACTING MEANS FOR GUIDING THE WIRE, LOOPING MEANS FOR GUIDING THE WIRE OFF THE CONTACTING MEANS AND BACK TO THE CONTACTING MEANS TO FORM A LOOP, AND ELECTRICAL MEANS INDUCTIVELY LINKED WITH THE WIRE BETWEEN THE LOOPING MEANS AND CONTACTING MEANS FOR INDUCING HEATING CURRENT IN THE WIRE, SAID CONTACTING MEANS DEFINING TWO CYCLICALLY-MOVABLE ELECTRICALLY-INTERCONNECTED AND ELECTRICALLY-CONDUCTIVE ENDLESS PORTIONS JOINED FOR MOVEMENT IN UNISON, ONE OF SAID PORTIONS CONTACTING THE WIRE BEFORE SAID LOOPING MEANS, THE OTHER OF SAID PORTIONS CONTACTING THE WIRE AFTER AND LOOPING MEANS, SAID PORTIONS BEING HEAT-ISOLATED FROM EACH OTHER BUT INDIVIDUALLY HEAT EXPANSIBLE.
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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |