Patent US3372448A successfully refreshed from Google Patents.
US3372448A
Expired / Lapsed
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Apparatus for prestressed concrete members of non-rectilinear shape
Assignee: FABRICATION DE PRODUITS EN BET
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Filing: 1964-11-18
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Granted: 1968-03-12
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Expires: 1984-11-18
Abstract
No abstract record available.
Inventors
- 👤 Neys Georges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:41
CPC Classifications
B; B28; B28B; B28B23/00; B28B23/02; B28B23/022; B28B23/024
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
IN AN APPARATUS FOR CASTING A PRESTRESSED CONCRETE MEMBER WHICH IS OF ELONGATED NON-RECTILINEAR SHAPE COMPRISING: MEANS DEFINING AN ELONGATED NON-RECTILINEAR CONCRETE FORM; MEANS FOR POSITIONING REINFORCING WIRES WITHIN THE CAVITY OF THE FORM LONGITUDINALLY THEREOF INCLUDING MEANS FOR TENSIONING SAID WIRES THE IMPROVEMENTS WHICH CONSIST IN THE PROVISION OF; AT LEAST ONE PERFORATE WIRE-SUPPORTING AND SPACING PLATE DISPOSED IN THE CAVITY OF SAID FORM TRANSVERSELY THEREOF AND RECEIVING SAID TENSIONED WIRES THROUGH THE PERFORATIONS THEREIN, WHEREBY TO SUPPORT THE PRETENSIONED WIRES IN PROPERLY SPACED RELATION ACROSS THE CAVITY DURING THE POURING OF CONCRETE INTO THE FORM AROUND THE PRE-TENSIONED WIRES AND DURING THE SETTING OF SAID CONCRETE; AND MEANS PROJECTING INTO THE CAVITY THROUGH OPPOSITE SIDE WALLS OF SAID FORM AND ENGAGING OPPOSITE SIDES OF SAID PLATE FOR ADJUSTING THE TRANSVERSE POSITIONS OF AND SUPPORTING SAID PLATE IN POSITION THE POURING AND SETTING OF THE CONCRETE.
Claim 2
Dependent Claim
147 words
IN AN APPARATUS FOR CASTING A PRESTRESSED CONCRETE MEMBER WHICH IS OF ELONGATED NON-RECTILINEAR SHAPE COMPRISING: MEANS DEFINING AN ELONGATED NON-RECTILINEAR CONCRETE FORM; MEANS FOR POSITIONING REINFORCING WIRES WITHIN THE CAVITY OF THE FORM LONGITUDINALLY THEREOF INCLUDING MEANS FOR TENSIONING SAID WIRES THE IMPROVEMENTS WHICH CONSIST IN THE PROVISION OF; AT LEAST ONE PERFORATE WIRE-SUPPORTING AND SPACING PLATE DISPOSED IN THE CAVITY OF SAID FORM TRANSVERSELY THEREOF AND RECEIVING SAID TENSIONED WIRES THROUGH THE PERFORATIONS THEREIN, WHEREBY TO SUPPORT THE PRETENSIONED WIRES IN PROPERLY SPACED RELATION ACROSS THE CAVITY DURING THE POURING OF CONCRETE INTO THE FORM AROUND THE PRE-TENSIONED WIRES AND DURING THE SETTING OF SAID CONCRETE; AND MEANS PROJECTING INTO THE CAVITY THROUGH OPPOSITE SIDE WALLS OF SAID FORM AND ENGAGING OPPOSITE SIDES OF SAID PLATE FOR ADJUSTING THE TRANSVERSE POSITIONS OF AND SUPPORTING SAID PLATE IN POSITION THE POURING AND SETTING OF THE CONCRETE.
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) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |