Sheet feeder with counteracting forces
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United States of America Patent
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Jul 1, 2003
Issued Date -
N/A
app pub date -
Apr 3, 2001
filing date -
Apr 3, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus for reducing burden in retrieving sheets of material from the bottom of a substantially vertical stack of sheets in a sheet feeder. The apparatus comprises a first convex surface at the bottom half of the stack protruding into one side of the stack for pushing the sheets toward the other side, and a second convex surface on the second side below the first convex surface for pushing the sheets toward the first side. The first and second convex surfaces each provide a counteracting force resisting the downward movement of the stack, and these countering forces have upward vertical components partially countering the downward vertical force due to the weight of the stack.
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