US4981003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall system
Assignee: Beaver Plastics Ltd
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Filing: 1989-07-24
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Granted: 1991-01-01
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Expires: 2009-07-24
Abstract
Abstract A unique wall panel is constructed from expanded polystyrene beads in an expanded polystyrene mold with structural members embedded in it during the molding process. The structural members are in the form of two by four studs placed at sixteen inch centers. Adjacent panels have interlocking grooves and ridges which fit together. The advantage of the present invention is that a total insulated wall is created with no cracks or spaces in the insulation. These lightweight panels can be carried to the building site, where base and top plates are applied and the panels interlocked to form a perfectly insulated wall.
Inventors
- 👤 Grant McCarthy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:29
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/20; E04C2/205
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
126 words
A one-piece molded wall panel for use as an outside load bearing wall constructed from foam insulating thermoplastics and a plurality of structural support members: said panel including a thickness being defined by front and back faces thereof, and including a length being defined by top and bottom ends thereof, and including a width being defined by first and second side edges therof; said structural members being constructed from wood and being surrounded by foam insulating thermoplastics, molded in situ, to substantially eliminate any void spaces between said wooden structural members and said foam insulating thermoplastics; said wooden structural members being aligned substantially parallel to one another and substantially parallel to said side edges, and said wooden structural members extending the entire length of said panel.
Claim 2
Dependent Claim
126 words
A one-piece molded wall panel for use as an outside load bearing wall constructed from foam insulating thermoplastics and a plurality of structural support members: said panel including a thickness being defined by front and back faces thereof, and including a length being defined by top and bottom ends thereof, and including a width being defined by first and second side edges therof; said structural members being constructed from wood and being surrounded by foam insulating thermoplastics, molded in situ, to substantially eliminate any void spaces between said wooden structural members and said foam insulating thermoplastics; said wooden structural members being aligned substantially parallel to one another and substantially parallel to said side edges, and said wooden structural members extending the entire length of said panel.
Claim 3
Dependent Claim
21 words
A wall panel as claimed in claim 1, wherein said wooden structural members are evenly spaced apart on 16 inch centers.
Claim 4
Dependent Claim
21 words
A wall panel as claimed in claim 1, wherein said wooden structural members are evenly spaced apart on 12 inch centers.
Claim 5
Dependent Claim
21 words
A wall panel as claimed in claim 1, wherein said wooden structural members are evenly spaced apart on 24 inch centers.
Claim 6
Dependent Claim
40 words
A wall panel as claimed in claim 2, comprising three wooden structural members wherein a middle member runs from the midpoint of the top end of said wall panel to the midpoint of the bottom end of said wall panel.
Claim 7
Dependent Claim
17 words
A wall panel as claimed in claim 1, wherein said foam insulating thermoplastic is expanded polystyrene beads.
Claim 8
Dependent Claim
59 words
A wall panel as claimed in claim 1, wherein one side edge includes at least one groove and the opposite side edge includes at least one ridge; said groove and said ridge extending substantially the entire length of said side edges, and being adapted to engage side edges of adjacent wall panels in an interlocking manner, when in operation.
Claim 9
Dependent Claim
41 words
A wall panel as claimed in claim 1, wherein the bottom end and the top end of said panel are square and adapted to be fitted with a base plate and top plate member, respectively, during the construction of a structure.
Claim 10
Dependent Claim
42 words
A wall panel as claimed in claim 8, wherein, when said top end and bottom end are fitted with said top plate and said base plate, said wall panel has outside dimensions substantially similar to a foot by 8 foot rectangular panel.
Claim 11
Dependent Claim
46 words
A wall panel as claimed in claim 1, wherein said wooden structural members are 2 inch by 4 inch studs positioned with said 2 inch dimension perpendicular to the front and rear faces of said panel to provide anchor points for inner and outer covering materials.
Claim 12
Dependent Claim
122 words
A one-piece molded wall panel for use as an outside load bearing wall constructed from foam insulating thermoplastics and a plurality of structural support studs: said panel including a thickness being defined by front and back faces thereof, and including a length being defined by top and bottom ends thereof, and including a width being defined by first and second side edges thereof; said structural support studs being surrounded by foam insulating thermoplastics, molded in situ, to substantially eliminate any void spaces between said structural support studs and said foam insulating thermoplastics; said structural support studs being aligned substantially parallel to one another and substantially parallel to said side edges, and said structural support studs extending the entire length of said panel.
Claim 13
Dependent Claim
122 words
A one-piece molded wall panel for use as an outside load bearing wall constructed from foam insulating thermoplastics and a plurality of structural support studs: said panel including a thickness being defined by front and back faces thereof, and including a length being defined by top and bottom ends thereof, and including a width being defined by first and second side edges thereof; said structural support studs being surrounded by foam insulating thermoplastics, molded in situ, to substantially eliminate any void spaces between said structural support studs and said foam insulating thermoplastics; said structural support studs being aligned substantially parallel to one another and substantially parallel to said side edges, and said structural support studs extending the entire length of said panel.
References Cited (Backward Citations)
CA699650A
Cited
CA756795A
Cited
CA884058A
Cited
US2376653A
Cited
US3353315A
Cited
US3449879A
Cited
US3778949A
Cited
CA961427A
Cited
CA977119A
Cited
DE2447845A1
Cited
CA1047730A
Cited
CA1041728A
Cited
CA1049217A
Cited
CA1085131A
Cited
CA1116371A
Cited
CA1182265A
Cited
CA1176815A
Cited
CA1207972A
Cited
US4471591A
Cited
CA1169625A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-12-31 | 1994-07-02 | 1995-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-31 | 1998-07-02 | 1999-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-31 | 2002-07-02 | 2003-01-01 | $7700.00 | Window Closed / Lapsed |