Patent ID: 8820006

Claim:
A hub and strut connection for a geodesic dome structure comprising: a. a hub with at least three prongs extending outwardly from a central point; b. at least one locking bar interconnecting at least two of said prongs; c. a plurality of mostly round timber or bamboo struts, wherein each strut has a first end, a second end and a middle region with at least one aperture therein between the first end and the second end, a notch in at least one of said ends, and wherein each strut has least one cavity along the longitudinal axis of said strut in at least one of said ends of said strut; d. a coupling between said struts and said prongs of said hub which mate said prongs with said cavities of said struts and affixing with mortar or concrete deposited within said cavities of said struts and engulfing said prongs; e. said plurality of struts anchored to said hub via wire, rope, or organic lashings; f. an outer form of mortar or concrete encapsulating the strut and prong couplings.