Method and apparatus for rotating an item
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 7, 1991
Grant Date -
N/A
app pub date -
Feb 15, 1990
filing date -
Feb 15, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device and method for positively controlling and rotating an item through a predetermined angle in a plane as said item is moved longitudinally in the plane. Different lateral portions of the item are moved at different speeds in the longitudinal direction to effect the rotation. Preferably a pair of cone shaped rollers are utilized which have a nip formed therebetween, coplanar with the plane of rotation. Alternatively a pair of spaced rollers having different linear surface speeds can be used to move the spaced lateral portions of the item at the different linear speeds. Positive control of the item is provided by opposed rotating members such as opposed belt conveyors or opposed sets of rollers and a mechanism is provided to selectively engage or release the opposed rotating members as required by the rotation of the item.
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