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US 4,283,156 AGranted
Joint for space frames
AssigneePittsburgh-Des Moines Steel Company
InventorGeorge C. Harper, Jr.
Life of this patent
Estimating the term…
Abstract
A joint for use with a space frame for connecting a plurality of struts together. The joint permits dome fabrication and erection with essentially no field bolting required. A central hub is included in the joint for resisting forces transmitted to the joint by dome struts.
Claims5
A joint connector for use in space frames to connect a plurality of struts together, comprising:
- an integral, tubular hub having a wall, and first and second ends with a gripping jaw being located on said first end, and hub fastening means being located on said second end, said gripping jaw including a flange spaced from said hub wall and surrounding said hub wall;
- a clamping ring having fastening means for cooperating with said hub fastening means to releasably secure said clamping ring to said tubular hub, said clamping ring including a flange which is spaced from said hub wall and extending toward said gripping jaw flange when said clamping ring is secured to said hub;
- a lifting stirrup attached to said first end and including a base spanning said first end and an ear attached to said base and terminating in said hub, said ear having attaching means defined therein for attaching a lifting device to said stirrup;
- and
- said clamping ring and gripping jaw sandwiching a strut therebetween to attach such strut to said hub.
2 more elements
Dependencies are inferred from the claim text.