US4092992A
Expired / Lapsed
US
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Laminated arch members and method of constructing them
Assignee: HOTTEL Corp
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Filing: 1976-02-23
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Granted: 1978-06-06
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Expires: 1996-02-23
Abstract
Abstract Large hollow curved beams and arches are inexpensively produced by curving individual shallow components, such as channels, that are then tiered to form a large laminated member. Smaller beams or arches can be made by tiering the components, curving them all at one time, then fastening them together. Individual layers of curved components are usually fastened together consecutively or in multiple laminations to construct a member with a much higher moment of inertia than the sum of the moments of inertia of the layers in a non-fastened state.
Inventors
- 👤 Carl F. Huddle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:35
CPC Classifications
E; E04; E04H; E04H15/00; E04H15/32; E04H15/34; E04H15/36; E04B; E04B1/00; E04B1/32; E04H15/64; E04H15/642; E04H15/646; E04B2001/3235; E04B2001/3252; Y; Y10; Y10S; Y10S135/00; Y10S135/906; Y10T; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/49623; Y10T29/49826; Y10T29/49863; Y10T29/49867; Y10T29/49869
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
80 words
A substantially, hollow structural encompass or beam member having at least one predetermined curved bight, comprising multiple layers of comparitively twice longitufinal structural components aligned in an assembled layer upon layer to encompas at least one continuous longitudinal tubular cavity having a cross sectional area of at least wice the cross sectional area of the wall material encompassing said tubular cavity, and means for fixing said layers together to attain a high stiffness to weight ratio in said structural member.
Claim 2
Dependent Claim
80 words
A substantially, hollow structural encompass or beam member having at least one predetermined curved bight, comprising multiple layers of comparitively twice longitufinal structural components aligned in an assembled layer upon layer to encompas at least one continuous longitudinal tubular cavity having a cross sectional area of at least wice the cross sectional area of the wall material encompassing said tubular cavity, and means for fixing said layers together to attain a high stiffness to weight ratio in said structural member.
Claim 3
Dependent Claim
17 words
The structural member described in claim 1 wherein at least one of said longitudinal cavities is intermittent.
Claim 4
Dependent Claim
21 words
The structural member described in claim 1 wherein said structural member includes prefabricated structural components of at least two different materials.
Claim 5
Dependent Claim
20 words
The structural member described in claim 1 wherein said longitudinal layers include in cross-section, at least one channel shaped layer.
Claim 6
Dependent Claim
17 words
The structural member described in claim 1 wherein said longitudinal layers include at least one corrugated layer.
Claim 7
Dependent Claim
17 words
The structural member described in claim 1 wherein said longitudinal layers include at least one cellular layer.
Claim 8
Dependent Claim
19 words
The structural member described in claim 1 wherein said longitudinal layers include at least one shallow box type layer.
Claim 9
Dependent Claim
18 words
The structural member described in claim 1 wherein said longitudinal layers are curved, forming a curved structural member.
Claim 10
Dependent Claim
23 words
The structural member described in claim 1 wherein said assembled structural member is internally reinforced by at least one non-continuous structural reinforcing component.
Claim 11
Dependent Claim
23 words
The structural member described in claim 1 with the addition of a membrane attachment means being fixed to at least one structural component.
Claim 12
Dependent Claim
21 words
The structual member described in claim 1 with the addition of a membrane attachment means being incorporated in said structural member.
Claim 13
Dependent Claim
28 words
The structural member described in claim 1 wherein said means to fix said longitudinal layers together includes at least one fastening within the crown of an arch member.
Claim 14
Dependent Claim
31 words
The structural member described in claim 1 wherein said longitudinal layers include prefabricated structural components made from inorganic materials such as metals or inorganic plastics, by extruding, rolling or press forming.
Claim 15
Dependent Claim
28 words
The structural member described in claim 1 wherein said longitudinal layers include prefabricated structural components of organic materials such as plastics, that are reinforced, unreinforced, molded or extruded.
Claim 16
Dependent Claim
21 words
The structural member described in claim 1 wherein said longitudinal layers include at least one layer of elastic rubber type material.
Claim 17
Dependent Claim
27 words
The structural member described in claim 1 wherein said means to fix said layers of structural components together include at least one spot, stitch or continuous weld.
Claim 18
Dependent Claim
26 words
The structural member described in claim 1 wherein said means to fix said layers of structural components together include at least one mechanical lock or fastener.
Claim 19
Dependent Claim
24 words
The structural member described in claim 1 wherein said means to fix said layers of structural components together include bonding by a structural adhesive.
Claim 20
Dependent Claim
21 words
The structural member described in claim 1 wherein said longitudinal layers include in cross section at least one hat shaped layer.
Claim 21
Dependent Claim
22 words
The structural member described in claim 1 wherein said member is constructed in longitudinal segments that are operatively connected to each other.
Claim 22
Dependent Claim
15 words
The combination described in claim 20 wherein said member includes at least one straight segment.
Claim 23
Dependent Claim
13 words
The structural member described in claim 20 wherein said segments have slip joints.
Claim 24
Independent Claim
87 words
The method of constructing a curved structural arch, or a segment thereof, comprising multiple layers of comparatiely thin structural components consecutively stacked on each other, and means to fasten said layers together; that includes the following steps: (a) prefabricating straight structural sections, (b) constructing the first layer of the arch member by bending it to a predetermined shape, (c) bending and stacking each additional layer over the prior layer, (d) fastening each additonal layer to said prior layer, (e) joining segments, if any, to assemble the arch.
Claim 25
Independent Claim
87 words
The method of constructing a curved structural arch, or a segment thereof, comprising multiple layers of comparatiely thin structural components consecutively stacked on each other, and means to fasten said layers together; that includes the following steps: (a) prefabricating straight structural sections, (b) constructing the first layer of the arch member by bending it to a predetermined shape, (c) bending and stacking each additional layer over the prior layer, (d) fastening each additonal layer to said prior layer, (e) joining segments, if any, to assemble the arch.
Claim 26
Dependent Claim
27 words
The method described in claim 23 except that step (b) is omitted, the straight components are stacked together then bent to a predetermined shape in step (c).
Claim 27
Dependent Claim
29 words
The method described in claim 23 except that in step (d) said layers are individually fastened to each prior layer when each layer is stacked on the prior layer.
Claim 28
Dependent Claim
29 words
The method described in claim 23 except that said layers of structural components are pre-bent to an approximate longitudinal contour in step b) and stacked together in step c).
Claim 29
Independent Claim
103 words
The method of constructing a structural arch or beam member having at least one curved bight, comprising multiple layers of comparatively shallow interior space having a cross-sectional area of at least twice the cross-sectional area of the material in said tiered layers, that includes the following steps: (a) Prefabricating said individual layers of longitudinal components in desired cross-sectional shapes and lengths, (b) Preforming said individual layers to their approximate longitudinal contour as required for their assembled position in said structural member, (c) Stacking said individual layers and fixing them together in their assembled position in said structural member or in a segment thereof.
Claim 30
Independent Claim
103 words
The method of constructing a structural arch or beam member having at least one curved bight, comprising multiple layers of comparatively shallow interior space having a cross-sectional area of at least twice the cross-sectional area of the material in said tiered layers, that includes the following steps: (a) Prefabricating said individual layers of longitudinal components in desired cross-sectional shapes and lengths, (b) Preforming said individual layers to their approximate longitudinal contour as required for their assembled position in said structural member, (c) Stacking said individual layers and fixing them together in their assembled position in said structural member or in a segment thereof.
Claim 31
Dependent Claim
34 words
The method described in claim 27 wherein the structural components are tiered after bending to the longitudinal shape required in step (b), then fixed together simultaneously, as a unit, by at least one fastener.
Claim 32
Dependent Claim
40 words
The method of constructing a structural member as described in claim 27 except that said individual layers are curved and stacked consecutively in step b) and consecutively fixed together in step c) as each layer is stacked on prior layers.
Claim 33
Dependent Claim
24 words
The method described in claim 29 wherein the structural components are "over curved" in step (b) to provide for "spring back" after final assembly.
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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) | 1981-06-05 | 1981-12-05 | 1982-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-05 | 1985-12-05 | 1986-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-05 | 1989-12-05 | 1990-06-06 | $7700.00 | Window Closed / Lapsed |