Patent US4044520A successfully refreshed from Google Patents.
US4044520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building panel
Assignee: Individual
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Filing: 1975-07-21
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Granted: 1977-08-30
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Expires: 1995-07-21
Abstract
Abstract The panel includes a square base of expanded polystyrene, and has two projecting sides which mate with the undercut sides of two identical adjacent panels. All four sides of the base are bevelled slightly, and the front face defines intersecting grooves so that a polymer fortified concrete facing can be applied to the front of the base without warping the base as the concrete shrinks during hardening. An acrylic binder, with quartz granules carried thereon is provided over the concrete facing to enhance the appearance of the panel, and to improve its resistance to impact.
Inventors
- 👤 Albert G. Barrows
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:01
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/26; E04C2/284; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24777
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
186 words
An exterior wall panel adapted for assembly with other similar panels, and comprising a base of heat insulating material, said base having a generally regular polygonal configuration and having at least one side defining a projecting edge adapted to mate with a cavity defined in the adjacent side of an identical adjacent panel, said base having a rear face adapted for attachment to a structure or the like, and having a front face defining grooves oriented generally perpendicularly with respect to said projecting edge, and a polymer fortified cementitious facing on said front face of said base, said facing having a thickness in the range of 1/8to 1/2 inch, said facing including rearwardly projecting ribs integrally formed in the facing which ribs fill said grooves in the base to a depth at least as great as that of said facing thickness, and a layer of polymer material adhered to the facing, said front face of said base has a bevelled edge, and wherein said facing also includes a bevelled edge such that an overhanging portion of the facing projects inwardly thereof to further reinforce the base.
Claim 2
Dependent Claim
186 words
An exterior wall panel adapted for assembly with other similar panels, and comprising a base of heat insulating material, said base having a generally regular polygonal configuration and having at least one side defining a projecting edge adapted to mate with a cavity defined in the adjacent side of an identical adjacent panel, said base having a rear face adapted for attachment to a structure or the like, and having a front face defining grooves oriented generally perpendicularly with respect to said projecting edge, and a polymer fortified cementitious facing on said front face of said base, said facing having a thickness in the range of 1/8to 1/2 inch, said facing including rearwardly projecting ribs integrally formed in the facing which ribs fill said grooves in the base to a depth at least as great as that of said facing thickness, and a layer of polymer material adhered to the facing, said front face of said base has a bevelled edge, and wherein said facing also includes a bevelled edge such that an overhanging portion of the facing projects inwardly thereof to further reinforce the base.
Claim 3
Dependent Claim
18 words
The exterior wall panel defined in claim 1 wherein said base is fabricated of an expanded polystyrene material.
Claim 4
Dependent Claim
19 words
The exterior wall panel of claim 1 further characterized by particles of stonelike consistency provided in said polymer material.
Claim 5
Dependent Claim
50 words
An exterior wall panel as defined in claim 1 wherein said regular polygonal configuration comprises a rectangular shape with at least one pair or adjacent sides of the rectangle defining said projecting edges, the other two adjacent sides defining complementary cavities for receiving the projecting edges of said adjacent panel.
Claim 6
Dependent Claim
47 words
The exterior wall panel defined in claim 1 wherein said regular polygonal configuration of said panel comprises a square equilateral shape with two adjacent sides defining said projecting edges and the other two adjacent sides defining complementary cavities for receiving the projecting edges of said adjacent panels.
Claim 7
Dependent Claim
49 words
The exterior wall panel defined in claim 4 wherein an additional set of grooves are oriented perpendicular to one of said cavity defining edges and perpendicular said first set of grooves oriented perpendicular said projecting edge whereby all of said grooves intersect one another in a grid like pattern.
Claim 8
Dependent Claim
157 words
An exterior wall panel adapted for assembly with other similar panels, and comprising a base of heat insulating material said base having a generally regular polygonal configuration and having at least one side defining a projecting edge adapted to mate with a cavity defined in the adjacent side of an identical adjacent panel, said base having a rear face adapted for attachment to a structure or the like, and having a front face defining grooves oriented generally perpendicularly with respect to said projecting edge, and a polymer fortified cementitious facing on said front face of said base, said facing having a thickness in the range of 1/8 to 1/2inch, said facing including rearwardly projecting ribs integrally formed in the facing which ribs fill said grooves in the base to a depth at least as great as that of said facing thickness, and a layer of binder material adhered to the facing, and granules entrained in said layer.
Claim 9
Dependent Claim
157 words
An exterior wall panel adapted for assembly with other similar panels, and comprising a base of heat insulating material said base having a generally regular polygonal configuration and having at least one side defining a projecting edge adapted to mate with a cavity defined in the adjacent side of an identical adjacent panel, said base having a rear face adapted for attachment to a structure or the like, and having a front face defining grooves oriented generally perpendicularly with respect to said projecting edge, and a polymer fortified cementitious facing on said front face of said base, said facing having a thickness in the range of 1/8 to 1/2inch, said facing including rearwardly projecting ribs integrally formed in the facing which ribs fill said grooves in the base to a depth at least as great as that of said facing thickness, and a layer of binder material adhered to the facing, and granules entrained in said layer.
Claim 10
Dependent Claim
25 words
The exterior wall panel of claim 7 wherein said binder material comprises an acrylic compound, and wherein said granules comprise an aggregate of stonelike consistency.
Claim 11
Dependent Claim
188 words
An exterior wall panel adapted for assembly with other similar panels, and comprising a base of heat insulating material, said base having a generally regular polygonal configuration and having at least one side defining a projecting edge adapted to mate with a cavity defined in the adjacent side of an identical adjacent panel, said base having a rear face adapted for attachment to a structure or the like, and having a front face defining grooves oriented generally perpendicularly with respect to said projecting edge, and a polymer fortified cementitious facing on said front face of said base, said facing having a thickness in the range of 1/8 to 1/2 inch, said facing including rearwardly projecting ribs integrally formed in the facing which ribs fill said grooves in the base to a depth at least as great as that of said facing thickness, said front face of said base has a bevelled edge, and wherein said facing also facing projects inwardly thereof to further reinforce the base and said bevelled edge including a concave or grooved portion, said bevelled edge of said facing being of complementary convex cross section.
Claim 12
Dependent Claim
188 words
An exterior wall panel adapted for assembly with other similar panels, and comprising a base of heat insulating material, said base having a generally regular polygonal configuration and having at least one side defining a projecting edge adapted to mate with a cavity defined in the adjacent side of an identical adjacent panel, said base having a rear face adapted for attachment to a structure or the like, and having a front face defining grooves oriented generally perpendicularly with respect to said projecting edge, and a polymer fortified cementitious facing on said front face of said base, said facing having a thickness in the range of 1/8 to 1/2 inch, said facing including rearwardly projecting ribs integrally formed in the facing which ribs fill said grooves in the base to a depth at least as great as that of said facing thickness, said front face of said base has a bevelled edge, and wherein said facing also facing projects inwardly thereof to further reinforce the base and said bevelled edge including a concave or grooved portion, said bevelled edge of said facing being of complementary convex cross section.
Claim 13
Dependent Claim
49 words
The exterior wall panel defined in claim 9 wherein an additional set of grooves are oriented perpendicular to one of said cavity defining edges and perpendicular said first set of grooves oriented perpendicular said projecting edge whereby all of said grooves intersect one another in a grid like pattern.
Claim 14
Dependent Claim
32 words
The exterior wall panel defined in claim 10 wherein said base bevelled edges all include concave or grooved portions, and said bevelled edge of said facing being of complementary convex cross section.
Claim 15
Dependent Claim
19 words
The exterior wall panel of claim 9 further characterized by a layer of polymer material adhered to the facing.
Claim 16
Dependent Claim
25 words
The exterior wall panel of claim 9 further characterized by a layer of binder material adhered to the facing, and granules entrained in said layer.
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) | 1980-08-29 | 1981-02-28 | 1981-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-29 | 1985-02-28 | 1985-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-29 | 1989-02-28 | 1989-08-30 | $7700.00 | Window Closed / Lapsed |