US3734453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tie rod assembly
Assignee: CONCRETE CONSTRUCTORS SERVICES
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Filing: 1970-12-18
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Granted: 1973-05-22
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Expires: 1990-12-18
Abstract
Abstract A system for maintaining laterally spaced form boards for the reception of a concrete pour wherein the tie is of a nonconductive material and H-shaped in cross-section, the opposed brackets being specifically configured so as to bear directly against and provide the sole support for the opposed form boards.
Inventors
- 👤 A Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:01
CPC Classifications
E; E04; E04G; E04G17/00; E04G17/06; E04G17/07; E04G17/0707; E04G17/0721
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
238 words
For use in a forming system incorporating a pair of laterally spaced form boards for the reception of a concrete pour therebetween, an elongated tie rod positionable between the form boards to engage therewith and define a stabilization means therefor, said rod being formed of a non-conductive plastic material, said tie rod having a solid H-shaped cross-section along a major portion of the length thereof, said H-shaped crosssection defining a plurality of angularly related longitudinal faces, said tie rod further having integral enlarged opposite ends, said ends defining inwardly directed shoulders positionable outward of the opposed form boards, and a pair of form board engaging non-conductive plastic brackets positionable outward of the opposed form boards, each bracket comprising a flat panel presenting planar front and rear faces, an inverted keyhole slot defined through said panel, flange means projecting perpendicularly from the front face of the panel peripherally thereabout and transversely thereacross so as to conform to and follow along the edges of the keyhole slot, said flange means tapering transversely across the front face of the panel along the length of the defined slot to define a gradually increasing thickness in the bracket from a first end of the keyhole slot which incorporates an enlarged circular portion capable of receiving the rod end to the second end of the slot which, while capable of accommodating the rod, is too narrow to allow passage of the rod end therethrough.
Claim 2
Dependent Claim
238 words
For use in a forming system incorporating a pair of laterally spaced form boards for the reception of a concrete pour therebetween, an elongated tie rod positionable between the form boards to engage therewith and define a stabilization means therefor, said rod being formed of a non-conductive plastic material, said tie rod having a solid H-shaped cross-section along a major portion of the length thereof, said H-shaped crosssection defining a plurality of angularly related longitudinal faces, said tie rod further having integral enlarged opposite ends, said ends defining inwardly directed shoulders positionable outward of the opposed form boards, and a pair of form board engaging non-conductive plastic brackets positionable outward of the opposed form boards, each bracket comprising a flat panel presenting planar front and rear faces, an inverted keyhole slot defined through said panel, flange means projecting perpendicularly from the front face of the panel peripherally thereabout and transversely thereacross so as to conform to and follow along the edges of the keyhole slot, said flange means tapering transversely across the front face of the panel along the length of the defined slot to define a gradually increasing thickness in the bracket from a first end of the keyhole slot which incorporates an enlarged circular portion capable of receiving the rod end to the second end of the slot which, while capable of accommodating the rod, is too narrow to allow passage of the rod end therethrough.
References Cited (Backward Citations)
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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) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |