Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Condition responsive means controls separating means
Patent
1977-04-04
1978-11-28
Rolla, Joseph J.
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Condition responsive means controls separating means
118 8, 222 40, B07C 5342
Patent
active
041271947
ABSTRACT:
A system for sorting mailing pieces is described in which pre-addressed labels are applied to mailing pieces and in which selected labels bearing indicia representative of a zip code group are selectively coated to identify them from labels not bearing such indicia. To distinguish coated labels from non-coated labels, each label is considered as having two or more portions, including a first coatable portion and a second reference portion. Only labels bearing zip code group indicia receive a coating on their coatable portions. Thereafter, each label is examined to detect the level of radiation, if any, emitted from its coatable and reference portions. If the level of radiation emitted from a coatable portion of a label exceeds the level of radiation emitted from its reference portion by at least a predetermined difference, such a label is identified as bearing indicia representative of a zip code group.
REFERENCES:
patent: 2904174 (1959-09-01), Emerson
patent: 2936886 (1960-05-01), Harmon
patent: 3090870 (1963-05-01), Ruckert
patent: 3105908 (1963-10-01), Burkhardt et al.
patent: 3682131 (1972-08-01), Algeri et al.
patent: 3839636 (1974-10-01), Worrall
patent: 3878541 (1975-04-01), Dodson
patent: 4028689 (1977-06-01), Schopp
Bell & Howell Company
Rolla Joseph J.
Samlan Alan B.
Thibault Harry G.
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