Patent US3206964A successfully refreshed from Google Patents.
US3206964A
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Apparatus and method for helically winding strip material
Assignee: General Electric Co
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Filing: 1962-01-02
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Granted: 1965-09-21
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Expires: 1982-01-02
Abstract
No abstract record available.
Inventors
- 👤 Benjamin F Hart
- 👤 Roland P Carlson
- 👤 Zubal Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:06
CPC Classifications
B; B21; B21D; B21D11/00; B21D11/06; H; H02; H02K; H02K15/00; H02K15/02; H02K15/021; H02K15/026; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071; Y10T29/4935; Y10T29/49377; Y10T29/49378; Y10T29/49382; Y10T29/53; Y10T29/5313; Y10T29/53143; Y10T29/53161
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A METHOD FOR FORMING A HELIX FROM AN ELONGATED RELATIVELY THIN METAL STRIP OF MATERIAL HAVING A SOLID PORTION WITH A PLURALITY OF SPACED APART SLOTS IN COMMUNICATION WITH ONE EDGE THEREOF, COMPRISING THE STEPS: SUCCESSIVELY PLACING A SERIES OF MOVABLE PINS INTO THE SLOTS IN ENGAGEMENT WITH THE STRIP, DRIVING THE STRIP THROUGH A CONFINED ARCUATE PATH BY CONCURRENT ANGULAR MOVEMENT OF SAID PINS, REDUCING THE RADIAL WIDTH TRANSVERSELY ACROSS OF AT LEAST THE SOLID PORTION OF THE STRIP THEREBY BENDING THE STRIP INTO AN ARCUATE FORM HAVING A GENERALLY UNIFORM THICKNESS AND CONCURRENTLY APPLYING A SUBSTANTIALLY CONSTANT LATERAL COMPRESSIVE FORCE TO AT LEAST THE SIDES OF THE SOLID PORTION OF THE STRIP THEREBY PREVENTING BUCKLING OF THE MATERIAL AS THE STRIP TRAVELS THROUGH SAID PATH, RETRACTING THE PINS FROM ENGAGEMENT WITH THE STRIP, AND DISCONTINUING THE COMPRESSIVE FORCE AFTER THE PINS HAVE BEEN IN ENGAGEMENT THEREWITH THROUGH A PREDETERMINED ANGLE OF TRAVEL.
Claim 2
Independent Claim
154 words
A METHOD FOR FORMING A HELIX FROM AN ELONGATED RELATIVELY THIN METAL STRIP OF MATERIAL HAVING A SOLID PORTION WITH A PLURALITY OF SPACED APART SLOTS IN COMMUNICATION WITH ONE EDGE THEREOF, COMPRISING THE STEPS: SUCCESSIVELY PLACING A SERIES OF MOVABLE PINS INTO THE SLOTS IN ENGAGEMENT WITH THE STRIP, DRIVING THE STRIP THROUGH A CONFINED ARCUATE PATH BY CONCURRENT ANGULAR MOVEMENT OF SAID PINS, REDUCING THE RADIAL WIDTH TRANSVERSELY ACROSS OF AT LEAST THE SOLID PORTION OF THE STRIP THEREBY BENDING THE STRIP INTO AN ARCUATE FORM HAVING A GENERALLY UNIFORM THICKNESS AND CONCURRENTLY APPLYING A SUBSTANTIALLY CONSTANT LATERAL COMPRESSIVE FORCE TO AT LEAST THE SIDES OF THE SOLID PORTION OF THE STRIP THEREBY PREVENTING BUCKLING OF THE MATERIAL AS THE STRIP TRAVELS THROUGH SAID PATH, RETRACTING THE PINS FROM ENGAGEMENT WITH THE STRIP, AND DISCONTINUING THE COMPRESSIVE FORCE AFTER THE PINS HAVE BEEN IN ENGAGEMENT THEREWITH THROUGH A PREDETERMINED ANGLE OF TRAVEL.
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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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |