Conveyors: power-driven – Conveyor section – Spiral
Patent
1980-08-04
1984-05-15
Nase, Jeffrey V.
Conveyors: power-driven
Conveyor section
Spiral
B65G 2118
Patent
active
044483015
ABSTRACT:
A conveyor system comprises an endless belt and means for carrying and driving the belt along a path comprising a plurality of vertically spaced apart loops by frictionally engaging the underside of the belt at the curved portions of the loops. The belt is supported at the straight portions of the loop. The belt is driven by friction between the carrying means and the underside of the belt.
REFERENCES:
patent: 1837502 (1931-12-01), Thompson
patent: 3450250 (1969-06-01), Frisk
patent: 3500989 (1970-03-01), Cripe et al.
patent: 3666083 (1972-05-01), Smith
patent: 3826352 (1974-07-01), Van Zon et al.
patent: 4078655 (1978-03-01), Roinestad
Nase Jeffrey V.
Sheldon Jeffrey G.
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