Patent US3135311A successfully refreshed from Google Patents.
US3135311A
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Method and apparatus for the manufacture of louvred corrugated sheeting
Assignee: VENTREX ROOFING Ltd
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Filing: 1961-05-17
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Granted: 1964-06-02
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Expires: 1981-05-17
Abstract
No abstract record available.
Inventors
- 👤 Green Edward Ramsay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:59
CPC Classifications
B; B21; B21D; B21D13/00; B21D13/04; B21D13/045; B23; B23D; B23D27/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A METHOD OF MANUFACTURING LOUVRED CORRUGATED SHEETING WHICH CONSISTS IN CONTINOUSLY FEEDING A CORRUGATED SHEET BETWEEN A FIXED SUPPORT AND A ROTATING PART CARRYING AT LEAST ONE TOOL WHICH SUPPORT AND TOOL ARE ARRANGED TO SHEAR THE MATERIAL OF THE SHEET TO FORM A SLIT TRANSVERSELY TO THE DIRECTION OF TRAVEL OF THE SHEET ACROSS A CORRUGATION AND WHICH SHEET IS THEN MOVED BETWEEN ROTATING PARTS EACH FORMED WITH AT LEAST ONE TOOL WHICH TOOLS ON THE ROTATING PARTS CO-OPERATE WITH ONE ANOTHER TO PRESS MATERIAL FROM ONE SIDE OF THE SLIT TO FORM A HOOD-LIKE LOUVRE.
Claim 2
Independent Claim
97 words
A METHOD OF MANUFACTURING LOUVRED CORRUGATED SHEETING WHICH CONSISTS IN CONTINOUSLY FEEDING A CORRUGATED SHEET BETWEEN A FIXED SUPPORT AND A ROTATING PART CARRYING AT LEAST ONE TOOL WHICH SUPPORT AND TOOL ARE ARRANGED TO SHEAR THE MATERIAL OF THE SHEET TO FORM A SLIT TRANSVERSELY TO THE DIRECTION OF TRAVEL OF THE SHEET ACROSS A CORRUGATION AND WHICH SHEET IS THEN MOVED BETWEEN ROTATING PARTS EACH FORMED WITH AT LEAST ONE TOOL WHICH TOOLS ON THE ROTATING PARTS CO-OPERATE WITH ONE ANOTHER TO PRESS MATERIAL FROM ONE SIDE OF THE SLIT TO FORM A HOOD-LIKE LOUVRE.
References Cited (Backward Citations)
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Cited
US717049A
Cited
US997946A
Cited
US1295769A
Cited
US1890077A
Cited
US1793352A
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US3059685A
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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) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |