US3821869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joint construction for concrete structures
Assignee: Individual
•
Filing: 1972-03-02
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Granted: 1974-07-02
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Expires: 1992-03-02
Abstract
Abstract A joint between preformed concrete wall and floor panels. The floor slabs, which have smooth bottom surfaces and rough cast upper surfaces, are positioned on the top of the wall panels with shims being provided to maintain spacing between the floor slabs and the tops of the wall panels. A molding strip of, for example, extruded vinyl is affixed to the upper end of the wall panels and engages the lower surface of the floor slabs. Fresh concrete is now poured to form the finished surface of the floor slab and the concrete flows into the space between the floor slab and the upper end of the wall panels, the molding strips retaining the concrete in place. Stopper plates may be provided in the voids of the wall panels to limit the depth to which the concrete flows in the wall panels.
Inventors
- 👤 B Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:35
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/02; E04B1/04; E04B1/043
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
187 words
A joint between a precast wall panel having interior voids extending downwardly from the top surface of the panel and at least one precast floor slab in which the floor slab is positioned above the panel with the lateral edge of the slab offset from the vertical centerline of the panel comprising: means spaced along the top surface of the panel to maintain a vertical separation between the upper surface of the panel and the lower surface of the slab; a plastic molding strip secured to the side of the panel at the upper edge thereof and in contact with the lower surface of the slab sealingly connecting the panel and the slab and defining a region overlapping the bottom surface of the slab and a side surface of the panel; and cast in situ concrete extending from at least the upper portion of the voids of the panels to at least the top surface of the slab and filling the separation between the panel and the slab and entering the region defined by the molding, upper edge of the panel, and bottom surface of the slab.
Claim 2
Dependent Claim
187 words
A joint between a precast wall panel having interior voids extending downwardly from the top surface of the panel and at least one precast floor slab in which the floor slab is positioned above the panel with the lateral edge of the slab offset from the vertical centerline of the panel comprising: means spaced along the top surface of the panel to maintain a vertical separation between the upper surface of the panel and the lower surface of the slab; a plastic molding strip secured to the side of the panel at the upper edge thereof and in contact with the lower surface of the slab sealingly connecting the panel and the slab and defining a region overlapping the bottom surface of the slab and a side surface of the panel; and cast in situ concrete extending from at least the upper portion of the voids of the panels to at least the top surface of the slab and filling the separation between the panel and the slab and entering the region defined by the molding, upper edge of the panel, and bottom surface of the slab.
Claim 3
Dependent Claim
34 words
The joint according to claim 1 wherein the upper surface of the slab is rough cast, the cast in situ concrete extending over the top surface of the slab to form a finished surface.
Claim 4
Dependent Claim
23 words
The joint according to claim 1 further including means to limit the depth of penetration of concrete into the voids of the panel.
Claim 5
Dependent Claim
38 words
The joint according to claim 3 wherein the last mentioned means comprises horizontally extending plates positioned within the void and having upwardly projecting rods extending to the top surface of the slab to retain the plates in position.
Claim 6
Dependent Claim
59 words
The joint according to claim 1 wherein the molding strip has a vertically extending web adapted to contact the side of the panel, a horizontally extending web adapted to contact the lower surface of the slab, and an intermediate web connecting the vertical and horizontal webs, the vertically extending web extending vertically above its connection to the intermediate web.
Claim 7
Dependent Claim
42 words
The joint according to claim 5 further including spring clip means engaging the upper end of the vertical web and the upper end of the wall panel to retain the strip in position, such clip means extending transversely of the wall panel.
Claim 8
Dependent Claim
35 words
The joint according to claim 5 wherein the concrete completely fills the region defined by the intermediate web of the molding strip, the upper edge of the panel, and the bottom surface of the slab.
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) | 1977-07-01 | 1977-12-31 | 1978-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-01 | 1981-12-31 | 1982-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-01 | 1985-12-31 | 1986-07-02 | $7700.00 | Window Closed / Lapsed |