Method of detecting overlaps in a postal sorting installation

Details Method of detecting overlaps in a postal sorting installation Method of detecting overlaps in a postal sorting installation

2007-02-27

2007-02-27

Bollinger, David H. (Department: 3653)

Sheet feeding or delivering

Feeding

With means to interrupt feeding

C271S265010, C209S584000, C209S900000

Reexamination Certificate

active

10474352

ABSTRACT:
The method of detecting overlapping postal items in a postal sorting installation (1) consists in detecting variation in the length of each item by causing each item to go past a plurality of proximity detectors (4, 5, 6, 7). The proximity detectors are situated at different points of the sorting installation (1) and they are configured to evaluate the length of each item. As they pass through the sorting installation, overlapping items shift progressively relative to one another due, in particular, to friction. Thus, the total length of a set of overlapping items tends to vary, such that evaluating variation in the length of each potential item serves to provide information that is reliable for detecting overlaps. Since it is relatively easy to evaluate the length of an item, the performance of the installation is improved at low cost.

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patent: WO 94/17387 (1994-08-01), None

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