US2805180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric cable
Assignee: Balfour Beatty PLC
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Filing: 1955-05-16
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Granted: 1957-09-03
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Expires: 1975-05-16
Abstract
No abstract record available.
Inventors
- 👤 Burr Harvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:06
CPC Classifications
H; H01; H01B; H01B13/00; H01B13/06; H01B13/18; H01B13/20; H01B13/206; B; B29; B29C; B29C53/00; B29C53/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
APPARATUS FOR APPLYING A FLAT THERMO-PLASTIC STRIP ABOUT A LONGITUDINALLY ADVANCING WIRE AS AN OPEN-TURN HELICAL FIN IN CONTACT WITH, AND EXTENDING RADIALLY FROM, THE WIRE, COMPRISING A MOULD CO-AXIAL WITH AND ROTATABLE ABOUT THE PATH OF THE WIRE, AXIALLY SEPARATED PARTS OF SAID MOULD EXTENDING HELICALLY TO DEFINE BETWEEN THEM A HELICAL PASSAGE WHICH IS OPEN THROUGHOUT THE LENGTH OF THE MOULD TO THE PATH OF THE WIRE AND PROVIDING OPPOSED RADIALLY EXTENDING SUPPORT-SURFACES FOR THE MAJOR SURFACES OF THE STRIP, A SOURCE OF SUPPLY OF STRIP AND, BETWEEN SAID SOURCE AND SAID MOULD, A FORMING GUIDE FOR PREFORMING THE STRIP INTO THE HELICAL FORM AND ADVANCING IT FROM THE SOURCE TO THE MOULD, MEANS FOR HEATING THE STRIP IN THE MOULD, MEAND FOR COOLING THE WINDING OF STRIP AS IT LEASVS THE MOULD AND MEANS FOR ROTATING THE MOULD, THE FORMING GUIDE AND THE SOURCE OF SUPPLY TOGETHER ABOUT THE ADVANCING WIRE.
Claim 2
Dependent Claim
154 words
APPARATUS FOR APPLYING A FLAT THERMO-PLASTIC STRIP ABOUT A LONGITUDINALLY ADVANCING WIRE AS AN OPEN-TURN HELICAL FIN IN CONTACT WITH, AND EXTENDING RADIALLY FROM, THE WIRE, COMPRISING A MOULD CO-AXIAL WITH AND ROTATABLE ABOUT THE PATH OF THE WIRE, AXIALLY SEPARATED PARTS OF SAID MOULD EXTENDING HELICALLY TO DEFINE BETWEEN THEM A HELICAL PASSAGE WHICH IS OPEN THROUGHOUT THE LENGTH OF THE MOULD TO THE PATH OF THE WIRE AND PROVIDING OPPOSED RADIALLY EXTENDING SUPPORT-SURFACES FOR THE MAJOR SURFACES OF THE STRIP, A SOURCE OF SUPPLY OF STRIP AND, BETWEEN SAID SOURCE AND SAID MOULD, A FORMING GUIDE FOR PREFORMING THE STRIP INTO THE HELICAL FORM AND ADVANCING IT FROM THE SOURCE TO THE MOULD, MEANS FOR HEATING THE STRIP IN THE MOULD, MEAND FOR COOLING THE WINDING OF STRIP AS IT LEASVS THE MOULD AND MEANS FOR ROTATING THE MOULD, THE FORMING GUIDE AND THE SOURCE OF SUPPLY TOGETHER ABOUT THE ADVANCING WIRE.
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) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |