US4787189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building blocks
Assignee: Baldina Pty Ltd
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Filing: 1984-11-08
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Granted: 1988-11-29
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Expires: 2004-11-08
Abstract
Abstract A building construction comprised of blocks of substantially rectangular prismatic configuration. The first pair of opposite edges of the blocks are each formed with a first tongue and a first groove of complementary configuration extending in parallel relationship along each edge wherein the first tongue of one edge is opposite the first groove of the other edge. Each of said first pair of edges is formed with a land portion extending between the sides of said edge and the adjacent first tongue or groove. The height of said first tongue above said land portion is greater than the depth of the first groove below said land portion such that on a pair of blocks abutting whereby the first tongue of one edge is snugly received within the first groove of the other edge of another block, the opposing land portions of the blocks are spaced from each other to receive an adhesive for fixing the blocks to each other. The second pair of edges are formed whereby one edge has a second tongue extending along its edge and the portion of the one edge to each side of the second tongue is formed with raised land portions. The other edge of said second pair of edges is formed with a second groove of complementary configuration to said second tongue wherein the height of the second tongue above the land portions is equal to the depth of the second groove.
Inventors
- 👤 Erik M. Haug
- 👤 Erling G. Haug
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:29
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/02; E04B2/14; E04B2/16; E04B2/18; E04B2002/0202; E04B2002/0204; E04B2002/0208; E04B2002/0226
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
265 words
A building construction comprised of blocks of substantially rectangular prismatic configuration wherein the first pair of opposite edges of each block are each formed with a first tongue and a first groove of complementary configuration extending in parallel relationship along each edge wherein the first tongue of one edge is opposite the first groove of the other edge, each of said first pair of edges being formed with a land portion extending between sides of said edge and the adjacent first tongue or groove, the height of said first tongue above said land portion being greater than the depth of the first groove below said land portion such that on a pair of blocks abutting whereby the first tongue of one edge is snugly received within the first groove of the other edge of another block,, the opposing land portions of the blocks are spaced from each other and a gap is formed between said land portions outwardly of said first tongue and said groove, the second pair of edges being formed whereby one edge has a second tongue extending along its edge and the portion of the one edge to each side of the second tongue being formed with raised land portions, and the other edge of said second pair of edges is formed with a second groove of complementary configuration to said second tongue wherein the height of the second tongue above the land portions is equal to the depth of the second groove, and a bonding adhesive filling solely the gap between said land portions for affixing said blocks to each other.
Claim 2
Dependent Claim
265 words
A building construction comprised of blocks of substantially rectangular prismatic configuration wherein the first pair of opposite edges of each block are each formed with a first tongue and a first groove of complementary configuration extending in parallel relationship along each edge wherein the first tongue of one edge is opposite the first groove of the other edge, each of said first pair of edges being formed with a land portion extending between sides of said edge and the adjacent first tongue or groove, the height of said first tongue above said land portion being greater than the depth of the first groove below said land portion such that on a pair of blocks abutting whereby the first tongue of one edge is snugly received within the first groove of the other edge of another block,, the opposing land portions of the blocks are spaced from each other and a gap is formed between said land portions outwardly of said first tongue and said groove, the second pair of edges being formed whereby one edge has a second tongue extending along its edge and the portion of the one edge to each side of the second tongue being formed with raised land portions, and the other edge of said second pair of edges is formed with a second groove of complementary configuration to said second tongue wherein the height of the second tongue above the land portions is equal to the depth of the second groove, and a bonding adhesive filling solely the gap between said land portions for affixing said blocks to each other.
Claim 3
Dependent Claim
64 words
A building block as claimed at claim 1 wherein the blocks are associated with an elongate base strip having a length greater than at least two blocks and having a planar undersurface and an upper surface having a complementary configuration to the other edge of said second pair of edges to said block, the land portions of said base strip being formed with rebates.
Claim 4
Dependent Claim
47 words
A building block as claimed at claim 1 wherein the blocks are associated with an elongate capping strip having a length at least equal to two blocks and having an undersurface of complementary configuration to the one edge of the said pair of edges of said blocks.
Claim 5
Dependent Claim
26 words
A building block as claimed at claim 1 wherein the blocks are formed with a set of spaced passageways extending between the second pair of edges.
Claim 6
Dependent Claim
36 words
A building block as claimed at claim 4 wherein the passageways through the block are symmetrically located at equally spaced intervals to each side of the central axis extending between said other edges of the block.
Claim 7
Dependent Claim
44 words
A building block as claimed at claim 5 wherein the set of passageways to each side of the central axis are spaced from each other a distance equal to the spacing between the end-most passageways of a pair of abutting blocks, when in position.
Claim 8
Dependent Claim
47 words
A building block as set forth in claim 5 wherein the upper and lower edges are formed with raised, spaced apart land portions adapted to engage each other when the building blocks are supported one upon the other and defining interposed gaps to receive a bonding adhesive.
Claim 9
Dependent Claim
47 words
A building block as claimed at claim 2 wherein the blocks are associated with an elongate capping strip having a length at least equal to two blocks and having an undersurface of complementary configuration to the one edge of the said pair of edges of said blocks.
Claim 10
Dependent Claim
26 words
A building block as claimed at claim 8, wherein the blocks are formed with a set of spaced passageways extending between the second pair of edges.
Claim 11
Dependent Claim
26 words
A building block as claimed at claim 2 wherein the blocks are formed with a set of spaced passageways extending between the second pair of edges.
Claim 12
Dependent Claim
26 words
A building block as claimed at claim 3 wherein the blocks are formed with a set of spaced passageways extending between the second pair of edges.
Claim 13
Dependent Claim
36 words
A building block as claimed at claim 11 wherein the passageways through the block are symmetrically located at equally spaced intervals to each side of the central axis extending between said other edges of the block.
Claim 14
Dependent Claim
36 words
A building block as claimed at claim 9 wherein the passageways through the block are symmetrically located at equally spaced intervals to each side of the central axis extending between said other edges of the block.
Claim 15
Dependent Claim
36 words
A building block as claimed at claim 10 wherein the passageways through the block are symmetrically located at equally spaced intervals to each side of the central axis extending between said other edges of the block.
Claim 16
Dependent Claim
44 words
A building block as claimed at claim 14 wherein the set of passageways to each side of the central axis are spaced from each other a distance equal to the spacing between the end-most passageways of a pair of abutting blocks, when in position.
Claim 17
Dependent Claim
44 words
A building block as claimed at claim 12 wherein the set of passageways to each side of the central axis are spaced from each other a distance equal to the spacing between the end-most passageways of a pair of abutting blocks, when in position.
Claim 18
Dependent Claim
44 words
A building block as claimed at claim 13 wherein the set of passageways to each side of the central axis are spaced from each other a distance equal to the spacing between the end-most passageways of a pair of abutting blocks, when in position.
Claim 19
Dependent Claim
47 words
A building block as set forth in claim 1 wherein the upper and lower edges are formed with raised, spaced apart land portions adapted to engage each other when the building blocks are supported one upon the other and defining interposed gaps to receive a bonding adhesive.
Claim 20
Dependent Claim
47 words
A building block as set forth in claim 2 wherein the upper and lower edges are formed with raised, spaced apart land portions adapted to engage each other when the building blocks are supported one upon the other and defining interposed gaps to receive a bonding adhesive.
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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) | 1991-11-29 | 1992-05-30 | 1992-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-29 | 1996-05-30 | 1996-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-29 | 2000-05-30 | 2000-11-29 | $7700.00 | Window Closed / Lapsed |