Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Three-dimensional space-defining
Patent
1985-09-23
1990-02-20
Ridgill, Jr., James L.
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Three-dimensional space-defining
52687, E04C 516
Patent
active
049014986
ABSTRACT:
A T-headed stirrup for anchoring reinforcing bars in concrete, to restrain lateral buckling of the reinforcing bars under severe forces. The stirrup, comprising a shaft with a T-shaped crosspiece at each end, is typically inserted between pairs of reinforcing bars. The crosspiece contacts the reinforcing bar and is shaped to restrain lateral movement of the reinforcing bar.
REFERENCES:
patent: 987858 (1911-03-01), Collins
patent: 1268887 (1918-06-01), Schroeder
patent: 1613351 (1927-01-01), Klinger et al.
patent: 1674204 (1928-06-01), Johnson
patent: 2157271 (1939-09-01), Schmeller
patent: 2467115 (1949-04-01), Duggan
patent: 3286419 (1966-11-01), Eriksson
deha Anersysteme "Dubelleiste", (Illustrated literature on shear studs) Permit dated Jul. 29, 1980.
Evans Larry W.
Keller Raymond F.
Ridgill, Jr. James L.
Sohio Petroleum Company
Untener David J.
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