US3103571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
To pulling
Assignee: —
•
Filing: —
•
Granted: 1963-09-10
•
Expires: 1980-09-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:22
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
172 words
A DEVICE FOR ELECTRICALLY HEATING SUCCESSIVE PORTIONS OF A BENDABLE BLANK METALLIC CONDUCTOR IN A CONTINUOUS OPERATION, SAID DEVICE COMPRISING A TRANSFORMER HAVING AN IRON CORE AND A PRIMARY WINDING UPON SAID CORE, AN ANNULAR MEMBER MADE OF HIGH RESISTANCE MATERIAL ENCOMPASSING PART OF SAID CORE, MEANS SUPPORTING SAID MEMBER ROTATABLE ABOUT THE ENCOMPASSED CORE PART, A PLURALITY OF ELONGATED MEMBERS MADE OF ELECTRICALLY CONDUCTIVE NON-MAGNETIC METAL DISPOSED AT THE OUTER PERIPHERAL SIDE OF SAID ANNULAR MEMBER CIRCUMFERENTIALLY SPACED AND ORIENTED SUBSTANTIALLY PARALLEL WITH THE ROTATIONAL AXIS OF SAID ANNULAR MEMBER, SAID ELONGATED MEMBERS BEING ELECTRICALLY INSULATED FROM EACH OTHER AND THE ANNULAR MEMBER, WHEREBY, UPON EXCITING SAID TRANSFORMER WINDING AND WINDING SUCCESSIVE TURNS OF SAID CONDUCTOR ON AND OFF SAID ANNULAR MEMBER, ELONGATED MEMBERS IN CONTACT WITH A CONDUCTOR TURN SHORT CIRCUIT SUCH TURN BY BRIDGING CONDUCTOR PORTIONS JUXTAPOSED ON THE ANNULAR MEMBER, SAID BRIDGES FORMING A CURRENT PATH SUBSTANTIALLY PARALLEL TO THE ROTATIONAL AXIS OF THE ANNULAR MEMBER AND CONSTITUTING A LAYER CONCENTRIC WITH THE PERIPHERY OF SAID ANNULAR MEMBER.
Claim 2
Independent Claim
172 words
A DEVICE FOR ELECTRICALLY HEATING SUCCESSIVE PORTIONS OF A BENDABLE BLANK METALLIC CONDUCTOR IN A CONTINUOUS OPERATION, SAID DEVICE COMPRISING A TRANSFORMER HAVING AN IRON CORE AND A PRIMARY WINDING UPON SAID CORE, AN ANNULAR MEMBER MADE OF HIGH RESISTANCE MATERIAL ENCOMPASSING PART OF SAID CORE, MEANS SUPPORTING SAID MEMBER ROTATABLE ABOUT THE ENCOMPASSED CORE PART, A PLURALITY OF ELONGATED MEMBERS MADE OF ELECTRICALLY CONDUCTIVE NON-MAGNETIC METAL DISPOSED AT THE OUTER PERIPHERAL SIDE OF SAID ANNULAR MEMBER CIRCUMFERENTIALLY SPACED AND ORIENTED SUBSTANTIALLY PARALLEL WITH THE ROTATIONAL AXIS OF SAID ANNULAR MEMBER, SAID ELONGATED MEMBERS BEING ELECTRICALLY INSULATED FROM EACH OTHER AND THE ANNULAR MEMBER, WHEREBY, UPON EXCITING SAID TRANSFORMER WINDING AND WINDING SUCCESSIVE TURNS OF SAID CONDUCTOR ON AND OFF SAID ANNULAR MEMBER, ELONGATED MEMBERS IN CONTACT WITH A CONDUCTOR TURN SHORT CIRCUIT SUCH TURN BY BRIDGING CONDUCTOR PORTIONS JUXTAPOSED ON THE ANNULAR MEMBER, SAID BRIDGES FORMING A CURRENT PATH SUBSTANTIALLY PARALLEL TO THE ROTATIONAL AXIS OF THE ANNULAR MEMBER AND CONSTITUTING A LAYER CONCENTRIC WITH THE PERIPHERY OF SAID ANNULAR MEMBER.
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) | 1966-09-09 | 1967-03-11 | 1967-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-09 | 1971-03-11 | 1971-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-09 | 1975-03-11 | 1975-09-10 | $7700.00 | Window Closed / Lapsed |