Feedscrew system and methodology
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United States of America Patent
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Sep 24, 1991
Grant Date -
N/A
app pub date -
Oct 27, 1989
filing date -
Oct 27, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A feedscrew system includes a conveyor for moving articles, at least one feedscrew for spacing the articles, a first sensing arrangement for sensing the occurrence of a gap between any two adjacent articles as the articles move toward the feedscrew, and control components responsive to the first sensing arrangement for controlling the rate at which the feedscrew operates in order to maintain a jam-feed condition. The control components may be configured to reduce the rate at which the feedscrew operates and/or to disengage a clutch in order to stop the feedscrew. A second sensing arrangement may be included in order to delay clutch disengagement when a second conveyor at the exit end of the feedscrew is engaging the top portion of an article within the feedscrew. The method of controlling the feedscrew system includes the steps of providing the first sensing arrangement and controlling the rate at which the feedscrew means operates in response to the first sensing arrangement sensing the occurrence of such a gap in order to maintain a jam-feed condition, and the step of controlling the rate at which the feedscrew operates may include reducing the rate from a normal to a reduced rate and/or stopping the feedscrew.
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