Method of checking wrapping material in a packaging machine

Details Method of checking wrapping material in a packaging machine Method of checking wrapping material in a packaging machine

2007-05-29

2007-05-29

Rada, Rinaldi I. (Department: 3721)

Package making

With means responsive to a sensed condition

Of individual contents or group feed or delivery

C053S466000, C053S396000

Reexamination Certificate

active

10636536

ABSTRACT:
Wrapping material utilized by a packaging machine is advanced along a set feed path through a station where an accessory material, typically adhesive, is applied in spots to selected areas of the surface, whereupon the material is charged electrostatically at a first station, and thereafter sensed at a second station to reveal the distribution of the charges; the electrostatic charges register more strongly on and around the spots, so that by measuring any variation in strength relative to the remainder of the surface, identifiable with faulty application of the adhesive, substandard material can be detected before it reaches the wrapping stations of the machine.

REFERENCES:
patent: 3960303 (1976-06-01), Gatti et al.
patent: 5056646 (1991-10-01), Kisler
patent: 5900218 (1999-05-01), LaRose et al.
patent: 0722898 (1996-07-01), None
patent: 643794 (1950-09-01), None
patent: 02064470 (2002-08-01), None
European Search Report dated Dec. 18, 2003.

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