US4825620A
Expired / Lapsed
US
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Structural support of interlocking lattice construction
Assignee: Ebert Composites Corp
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Filing: 1987-12-23
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Granted: 1989-05-02
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Expires: 2007-12-23
Abstract
Abstract A structural support is formed from a lattice which is elongated in the direction representing the run of the structural support, and of much smaller dimension such as being two lattice joints across in its other dimensions, with the joints defining the lattice being of a special interlocking construction which creates a quite rigid joint in all dimensions of possible movement without the use of any fasteners or adhesive.
Inventors
- 👤 David W. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:45
CPC Classifications
A; A47; A47B; A47B73/00; A47B47/00; A47B47/04; B; B29; B29C; B29C70/00; B29C70/04; B29C70/28; B29C70/40; B29C70/50; B29C70/52; B29C70/525; E; E04; E04B; E04B1/00; E04B1/18; E04B1/19; E04B2001/1924; E04B2001/1933
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
271 words
A structural support comprising: (a) A reticulated lattice defining orthogonal X, Y, and Z directions; (b) said lattice being comprised of a plurality of elongated structural members formed into an X-directional parallel array, a Y-directional parallel array, and a Z-directional parallel array; (c) said parallel arrays intersecting one another to define joints between said elongated structural members and each of said joints including two of said members from each said X-, Y-, and Z-directional parallel arrays to form said six-member joints, said six-member joints each having three elongated structural members that are only full notched, said full notch being substantially equal to two times the cross-sectional area of each of the three elongated members, two of said members having similar full notches and also having an additional half notch, said half notch being formed at 90 degrees to the full notch and substantially at mid-span of the full notch, the sixth elongated structural member having no notches at said joint and being the key post that holds the remaining five members together as a joint; (d) each of said joints comprising an interlocking joint held together by the interlocking configurations of the elongated structural members themselves such that said lattice is rigid and completely integral without the use of blocks or sockets at the joints; and (e) said reticulated lattice being substantially elongated in one of said directions compared to the other directions, and having substantially more joints in the direction in which it is elongated that in the other directions, such that it defines an elongated member dimensioned to be a structural support such as a beam, girder or post.
Claim 2
Dependent Claim
271 words
A structural support comprising: (a) A reticulated lattice defining orthogonal X, Y, and Z directions; (b) said lattice being comprised of a plurality of elongated structural members formed into an X-directional parallel array, a Y-directional parallel array, and a Z-directional parallel array; (c) said parallel arrays intersecting one another to define joints between said elongated structural members and each of said joints including two of said members from each said X-, Y-, and Z-directional parallel arrays to form said six-member joints, said six-member joints each having three elongated structural members that are only full notched, said full notch being substantially equal to two times the cross-sectional area of each of the three elongated members, two of said members having similar full notches and also having an additional half notch, said half notch being formed at 90 degrees to the full notch and substantially at mid-span of the full notch, the sixth elongated structural member having no notches at said joint and being the key post that holds the remaining five members together as a joint; (d) each of said joints comprising an interlocking joint held together by the interlocking configurations of the elongated structural members themselves such that said lattice is rigid and completely integral without the use of blocks or sockets at the joints; and (e) said reticulated lattice being substantially elongated in one of said directions compared to the other directions, and having substantially more joints in the direction in which it is elongated that in the other directions, such that it defines an elongated member dimensioned to be a structural support such as a beam, girder or post.
Claim 3
Dependent Claim
24 words
Structure according to claim 1 wherein each of said elongated structural members is paired with another contiguous structural member to define structural member pairs.
Claim 4
Dependent Claim
47 words
Structure according to claim 2 wherein each of the elongated structural members in said X-directional array comprises a lath and each lath is one of said elongated members which has a full notch at each joint with the notches facing one another to define a Z-passthrough opening.
Claim 5
Dependent Claim
50 words
Structure according to claim 3 wherein each of the elongated structural members in said Y-directional array comprises a slat and each slat has a full notch at each joint with the notches of the slats facing each other to define an X-passthrough opening, and said laths pass through said openings.
Claim 6
Dependent Claim
108 words
Structure according to claim 4 wherein each said slats has a half-notch cut centrally orthogonally in the side of each of the notches thereof, and said half-notches define Z-passthrough openings, and each of the elongated structural members of the elongated structural member pairs of the Z-directional array comprises a post, a first one of the posts in each pair having a full notch at each joint defining a wide passthrough opening embracing two of said slats in alignment with the half-notches thereof, and the second post of each pair being a key post with no notches, inserted into the joints last to rigidly tie the respective joint together.
Claim 7
Dependent Claim
42 words
Structure according to claim 5 wherein some of said elongated structural members having notches therein have additional stock left in the notches to fill the void that would otherwise lie internally of each joint so that a totally solid joint is produced.
Claim 8
Dependent Claim
32 words
Structure according to claim 6 wherein each of said full notches in each of said slats is E-shaped to define said additional stock to fill the void that would otherwise be produced.
Claim 9
Dependent Claim
68 words
Structure according to claim 2 wherein each of said elongated structural members has a joint region and each of said joint regions has cut into it either no notch at all, a full notch, or a full notch with an orthogonal half-notch centrally cut into the side thereof, such that all of said elongated structural members have only one of the above-stated three configurations at the joint region.
Claim 10
Dependent Claim
85 words
Structure according to claim 6 wherein the elongated structural members of the X-dimensional array are all laths with a full notch at the joint region, all the elongated structural members of the Y-dimensional array are slats having at their joint region a full notch having a half-notch centrally cut into its side, and each pair of elongated structural members in the Z-dimensional array comprises both a first post with a full notch at the joint region and a second post with no notches at all.
Claim 11
Dependent Claim
23 words
Structure according to claim 1 wherein in the directions of said lattice other than said substantially elongated direction said lattice is substantially equidimensional.
Claim 12
Dependent Claim
48 words
Structure according to claim 10 wherein said structural support is for use substantially horizontally extended as a beam and is substantially elongated in the length dimension which is the direction of the run of the beam, and is also of depth dimension substantially greater than the width dimension.
Claim 13
Dependent Claim
27 words
Structure according to claim 11 wherein in the two directions in which said reticulated lattice is not elongated all structural members have a total of two joints.
Claim 14
Dependent Claim
33 words
Structure according to claim 1 in which some of said elongated structural members are in at least two parts having ends which meet at a butt joint within the framework of said lattice.
Claim 15
Dependent Claim
25 words
Structure according to claim 13 wherein said ends which meet at a butt joint are pinned to a contiguous elongated structural member for additional strength.
References Cited (Backward Citations)
US4715503A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-05-01 | 1992-10-31 | 1993-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-01 | 1996-10-31 | 1997-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-01 | 2000-10-31 | 2001-05-02 | $7700.00 | Window Closed / Lapsed |