Patent US3810342A successfully refreshed from Google Patents.
US3810342A
Expired / Lapsed
US
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Dome joint
Assignee: WESTERN WOOD STRUCTURES Inc
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Filing: 1972-12-26
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Granted: 1974-05-14
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Expires: 1992-12-26
Abstract
Abstract At both top and bottom of end portions of beams, welded steel plate connector assemblies having side straps are bolted to the beams, a bridge plate welded to the side straps and one or more threaded studs welded to the bridge plate and extending through and nuts tightened behind a facet plate of a separate polygonal hub assembly. The central hub assembly includes a polygonal tube and stiffening plates and gussets in the tube. A clearance between the connector assemblies and the central hub effects a joint where the beam remains in abutment with its facet of the hub for tension forces as well as compression forces. The beams have daps and/or kerfs, and also clearance grooves for the studs to permit the connectors to be slid from retracted positions to positions in which the studs extend through the bolt holes in the hub.
Inventors
- 👤 H Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:05
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/32; E04B1/18; E04B1/19; E04B1/1903; E04B1/1909; E04B2001/0053; E04B2001/0084; E04B1/26; E04B1/2604; E04B2001/2676; E04B2001/3235; E04B2001/3241; E04B2001/3247; Y; Y10; Y10T; Y10T403/00; Y10T403/34; Y10T403/341; Y10T403/344
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
81 words
In a joint connecting beams together, a tubular hub, a plurality of beams, a plurality of straps secured to the end portions of the beams, a plurality of bridge means joining pluralities of the straps together, a plurality of threaded fastener means secured to the bridge means and engaging the inner faces of the hub to hold the ends of the beams in abutment with the outer faces of the hub and hold the beams against movement relative to the hub.
Claim 2
Dependent Claim
81 words
In a joint connecting beams together, a tubular hub, a plurality of beams, a plurality of straps secured to the end portions of the beams, a plurality of bridge means joining pluralities of the straps together, a plurality of threaded fastener means secured to the bridge means and engaging the inner faces of the hub to hold the ends of the beams in abutment with the outer faces of the hub and hold the beams against movement relative to the hub.
Claim 3
Dependent Claim
32 words
The joint of claim 1 wherein the fastener means includes bolt members secured to the bridge means and nuts screwed onto the bolt members and engaging the inner face of The hub.
Claim 4
Dependent Claim
16 words
The joint of claim 2 wherein the hub has holes through which the bolt members extend.
Claim 5
Dependent Claim
23 words
The joint of claim 2 wherein the bridge means includes cross-strap members connecting pairs of the straps and secured to the bolt members.
Claim 6
Dependent Claim
19 words
The joint of claim 4 wherein the end portions of the beams have clearance grooves receiving the bolt members.
Claim 7
Dependent Claim
10 words
The joint of claim 1 wherein the hub is polygonal.
Claim 8
Dependent Claim
10 words
The joint of claim 6 wherein the hub is hexagonal.
Claim 9
Dependent Claim
20 words
The joint of claim 1 including stiffening discs in the hub and gussets secured to the hub and the discs.
Claim 10
Dependent Claim
89 words
In a dome joint, a tubular hub, a beam having an end in abutment with one side of the hub, a plurality of straps, bolt means fastening the straps to the beam in positions extending along the beam with the ends of the straps spaced somewhat from the hub, a plurality of studs extending through the hub and along the beam, connecting means connecting the studs to the straps, and nuts on the studs and tensioning the studs to pull the end of the beam tightly against the hub.
Claim 11
Dependent Claim
89 words
In a dome joint, a tubular hub, a beam having an end in abutment with one side of the hub, a plurality of straps, bolt means fastening the straps to the beam in positions extending along the beam with the ends of the straps spaced somewhat from the hub, a plurality of studs extending through the hub and along the beam, connecting means connecting the studs to the straps, and nuts on the studs and tensioning the studs to pull the end of the beam tightly against the hub.
Claim 12
Dependent Claim
46 words
The dome joint of claim 9 wherein the connecting means comprises a bridge member connected to the straps for shear and tension and connected to the studs, the bridge member being spaced away from the hub so that only the beam is pulled against the hub.
Claim 13
Dependent Claim
21 words
The dome joint of claim 10 wherein the bridge member is a rigid cross plate rigidly secured to the side straps.
Claim 14
Dependent Claim
43 words
The dome joint of claim 11 wherein the studs are secured to the plate in positions lying on one face of the plate, the beam having a relieved portion providing clearance for the plate and also having grooves providing clearance for the studs.
Claim 15
Dependent Claim
94 words
The dome joint of claim 12 wherein the plate is integral with the straps and the studs, and the relieved portion and the grooves extend away from the end of the beam sufficiently that, before the bolt means are installed, the straps, the plate and the studs can be slid back on the beam to positions in which the studs do not extend beyond the end of the beam so that the straps, the plate and the studs can be slid along the beam to insert the studs through the side of the hub.
Claim 16
Dependent Claim
24 words
The dome joint of claim 13 wherein the plate is secured to side edges of the straps and the relieved portion is a dap.
Claim 17
Dependent Claim
29 words
The dome joint of claim 14 wherein the plate is secured to the straps inwardly from the side edges of the straps and the relieved portion is a kerf.
References Cited (Backward Citations)
FR1194879A
Cited
US3486278A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-13 | 1977-11-12 | 1978-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-13 | 1981-11-12 | 1982-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-13 | 1985-11-12 | 1986-05-14 | $7700.00 | Window Closed / Lapsed |