US2823154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spiral winding process and apparatus therefor
Assignee: Individual
•
Filing: 1955-12-12
•
Granted: 1958-02-11
•
Expires: 1975-12-12
Abstract
No abstract record available.
Inventors
- 👤 Hugh M Archer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:36
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/60
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
90 words
A MACHINE FOR WINDING PLASTIC SPIRAL COMPRISING A THREADED MANDREL, MEANS FOR ROTATING SAID MANDREL IN ONE DIRECTION, PLASTIC STRIP WINDING MEANS ADJACENT SAID MANDREL FOR WINDING THE STRIP ONTO THE MANDREL AT AN ANGLE TO THE MANDREL AXIS, MEANS FOR ROTATING SAID WINDING MEANS IN THE OPPOSITE DIRECTION FROM SAID MANDREL, PLASTIC SPIRAL HEATER MEANS DOWNSTREAM FROM THE WINDING MEANS FOR RELIEVING STRESS IN THE TRIP DUE TO ROTATIONAL INFLUENCES FROM THE WINDING MEANS, AND RADIALLY ACTING PRESSURE MEANS ENGAGEABLE WITH THE SPIRL STRIP DOWNSTREAM FROM THE HEATER MEANS.
References Cited (Backward Citations)
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |