Patent US3765138A successfully refreshed from Google Patents.
US3765138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corner control system for plaster walls
Assignee: Individual
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Filing: 1971-07-08
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Granted: 1973-10-16
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Expires: 1991-07-08
Abstract
Abstract An expansion joint system for corners of plastered walls comprising a pair of angularly related and allochirally arranged casing beads extending longitudinally along and defining such a corner, the casing beads providing outwardly extending first flange portions terminating in close adjacency to define a corner seam and a corner space. A longitudinally extending connector member having an L-shaped cross section is disposed within the corner space defined by the first flange portions, this member having a longitudinally extending apex and inwardly and longitudinally extending leg sections, one of the leg sections abutting each first flange portion and the apex being disposed in close adjacency to the seam. Each casing bead also provides a clip portion positioned and arranged to engage and hold the adjacent leg section against its said first flange portion.
Inventors
- 👤 R Bentle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:17
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/30; E04C2/38; E04C2/384; E04B; E04B1/00; E04B1/38; E04B1/61; E04B1/6108; E04B1/6116; E04B1/62; E04B1/66; E04B1/68; E04B1/6809
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
200 words
Expansion joint structure for plastered walls, said structure comprising walls intersecting at right angles to define an interior corner, a pair of elongated cooperating casing beads extending longitudinally along said corner and attached to said walls, one of said casing beads extending away from said corner against each said wall, each of said casing beads providing an outwardly and longitudinally extending first flange portion terminating with a longitudinally extending first edge and a second longitudinal flange portion extending away from said first edge and said corner, each second flange portion terminating with a longitudinally extending second edge, said first edges being disposed in close adjacency to define a corner seam, a longitudinally extending connector member having an L-shaped cross section conformingly disposed in the space defined by said first flange portions, said connector member having a longitudinally extending apex and inwardly and longitudinally extending leg sections, one of said leg sections abutting each said first flange portion and said apex being disposed in close adjacency to said first edges, and each of said casing beads also providing a longitudinally extending spring-like clip portion positioned and arranged to engage and hold the adjacent leg section against its said first flange portion.
Claim 2
Dependent Claim
200 words
Expansion joint structure for plastered walls, said structure comprising walls intersecting at right angles to define an interior corner, a pair of elongated cooperating casing beads extending longitudinally along said corner and attached to said walls, one of said casing beads extending away from said corner against each said wall, each of said casing beads providing an outwardly and longitudinally extending first flange portion terminating with a longitudinally extending first edge and a second longitudinal flange portion extending away from said first edge and said corner, each second flange portion terminating with a longitudinally extending second edge, said first edges being disposed in close adjacency to define a corner seam, a longitudinally extending connector member having an L-shaped cross section conformingly disposed in the space defined by said first flange portions, said connector member having a longitudinally extending apex and inwardly and longitudinally extending leg sections, one of said leg sections abutting each said first flange portion and said apex being disposed in close adjacency to said first edges, and each of said casing beads also providing a longitudinally extending spring-like clip portion positioned and arranged to engage and hold the adjacent leg section against its said first flange portion.
Claim 3
Dependent Claim
85 words
The structure of claim 1 in which each casing bead is formed to provide a third longitudinal flange portion extending away from the inner edge of said first flange portion and such a corner and parallel to said second flange portion, and in which said clip portion includes a longitudinally extending clip member fastened to the inner surface of said third flange portion, said clip member including an outwardly extending resilient spring arranged to urge the adjacent leg section against its associated first flange portion.
Claim 4
Dependent Claim
31 words
The structure of claim 2 in which each outwardly extending resilient spring is reversely bent at its distal edge to provide a longitudinal tab extending diagonally inwardly toward such a corner.
Claim 5
Dependent Claim
30 words
The structure of claim 2 in which each said outwardly extending resilient spring is reversely bent to provide an inwardly and longitudinally extending tab for engaging the adjacent leg secTion.
Claim 6
Dependent Claim
30 words
The structure of claim 4 in which said spring is reversely bent at a radius to provide a longitudinally extending curved surface contacting said leg section along a contact line.
Claim 7
Dependent Claim
33 words
The structure of claim 5 in which said contact line is closer to the outer edge portion of said leg section than it is to the inner edge portion of said leg section.
Claim 8
Dependent Claim
52 words
The structure of claim 1 in which said clip portion includes a longitudinally extending clip member arranged to urge the adjacent leg section against its associated first flange portion, said clip member including a spring extending outwardly and, in its free state, toward said first flange portion to engage said leg section.
Claim 9
Dependent Claim
46 words
The structure of claim 7 in which said spring is bent at a radius adjacent its distal edge to provide a longitudinal tab extending diagonally inwardly toward such a corner, said radius providing a longitudinally extending curved surface contacting said leg section along a contact line.
Claim 10
Dependent Claim
162 words
An expansion joint structure for plastered walls comprising walls intersecting at right angles to define an interior corner, a pair of angularly related and allochirally arranged casing beads extending longitudinally along and defining a seam for said corner, said casing beads being attached to said walls, said casing beads providing outwardly extending first flange portions terminating in close adjacency to define said corner seam and a corner space between said first flange portions and said intersecting walls, and a longitudinally extending connector member having an L-shaped cross section disposed within the corner space defined by said first flange portions, said member having a longitudinally extending apex and inwardly and longitudinally extending leg sections, one of said leg sections abutting each said first flange portion and said apex being disposed in close adjacency to said seam, and each casing bead also providing a spring-like clip portion positioned and arranged to engage and hold the adjacent leg section against its said first flange portion.
Claim 11
Dependent Claim
162 words
An expansion joint structure for plastered walls comprising walls intersecting at right angles to define an interior corner, a pair of angularly related and allochirally arranged casing beads extending longitudinally along and defining a seam for said corner, said casing beads being attached to said walls, said casing beads providing outwardly extending first flange portions terminating in close adjacency to define said corner seam and a corner space between said first flange portions and said intersecting walls, and a longitudinally extending connector member having an L-shaped cross section disposed within the corner space defined by said first flange portions, said member having a longitudinally extending apex and inwardly and longitudinally extending leg sections, one of said leg sections abutting each said first flange portion and said apex being disposed in close adjacency to said seam, and each casing bead also providing a spring-like clip portion positioned and arranged to engage and hold the adjacent leg section against its said first flange portion.
Claim 12
Dependent Claim
31 words
The structure of claim 9 in which said clip portion includes a longitudinally and outwardly extending spring clip engaging and urging the adjacent leg section against its associated first flange portion.
Claim 13
Dependent Claim
80 words
The structure of claim 9 in which each said casing bead includes an elongated sheet metal strip formed at one edge portion to provide said first flange portion, at its intermediate portion to provide a reversely bent spring portion extending outwardly and toward said first flange portion to serve as said clip portion and at its opposite edge portion to provide a mounting flange strip extending away from such a corner and the inner edge of said first flange portion.
Claim 14
Dependent Claim
35 words
The structure of claim 11 in which the distal edge of said one edge portion is bent at a right angle to extend away from such a seam and parallel to said mounting flange strip.
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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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |