Patent US3977647A successfully refreshed from Google Patents.
US3977647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for connecting abutting form panels and for mounting a tie rod
Assignee: WILLIAMS FORM ENGINEERING Corp A MI CORP
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Filing: 1975-02-11
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Granted: 1976-08-31
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Expires: 1995-02-11
Abstract
Abstract Metal wall form sections are adapted to a bolted tie system providing accurate spacing of the opposite panels defining a space to receive poured concrete. In the preferred form of the invention, interengagement of the form structure and the tie system (providing the spacing feature) is also used to secure the form sections laterally to each other. In another form of the invention, wedges transversely engaging the bolts bridge across and bear on the flanges of marginal beams of adjacent form sections to establish relative placement against the pressure of the concrete.
Inventors
- 👤 Chester I. Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:16
CPC Classifications
E; E04; E04G; E04G9/00; E04G9/02; E04G17/00; E04G17/06; E04G17/07; E04G17/0728; E04G17/0742
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
158 words
A modular form system including a plurality of units assembled edge-to-edge in coplanar relationship each including a panel adapted to confine poured concrete, marginal beams adjacent the vertical edges of said panel and secured thereto, said beams each having a web portion normal to said panel and flanges along said web portion generally parallel to said panel, and a plurality of tie assemblies including bolt means traversing said panels and secured with respect thereto, wherein the improvement comprises: laterally-offset web portions on said marginal beams and panel on the edges thereof defining the edge periphery of each of said units, said laterally-offset web portions on adjacent beams and panels together defining an opening receiving said bolt means at least at positions intermediate the corners of said units, said opening conforming closely to the cross-sectional configuration of said bolt means, and said flanges being absent at the laterally-offset web portions; and means securing said units laterally in edge-to-edge relationship.
Claim 2
Dependent Claim
158 words
A modular form system including a plurality of units assembled edge-to-edge in coplanar relationship each including a panel adapted to confine poured concrete, marginal beams adjacent the vertical edges of said panel and secured thereto, said beams each having a web portion normal to said panel and flanges along said web portion generally parallel to said panel, and a plurality of tie assemblies including bolt means traversing said panels and secured with respect thereto, wherein the improvement comprises: laterally-offset web portions on said marginal beams and panel on the edges thereof defining the edge periphery of each of said units, said laterally-offset web portions on adjacent beams and panels together defining an opening receiving said bolt means at least at positions intermediate the corners of said units, said opening conforming closely to the cross-sectional configuration of said bolt means, and said flanges being absent at the laterally-offset web portions; and means securing said units laterally in edge-to-edge relationship.
Claim 3
Dependent Claim
27 words
A form system as defined in claim 1, additionally including locating means intersecting said web at said offset portions and also intersecting said bolt means disposed therein.
Claim 4
Dependent Claim
23 words
A form system as defined in claim 2, wherein said locating means is a pin disposed at a substantial angle to the horizontal.
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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) | 1979-08-31 | 1980-03-01 | 1980-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-31 | 1984-03-01 | 1984-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-31 | 1988-03-01 | 1988-08-31 | $7700.00 | Window Closed / Lapsed |