Blister pack scanner device

Details Blister pack scanner device Blister pack scanner device

1994-02-18

1996-09-17

Coan, James F.

Package making

With means responsive to a sensed condition

Of individual contents or group feed or delivery

53495, 53507, B65B 5708, B65B 5718

Patent

active

055557074

ABSTRACT:
A blister pack scanning device for detection and removal of overfilled or defective pharmaceutical blister packs is comprised of a photoelectric LED transmitter and sensor with a scanning beam channel bar disposed therebetween. The blister pack web is passed below the bar through a space precisely equivalent to the thickness of a properly filled blister. Overfilled or improperly molded blisters will contact a beveled edge of the bar as the web passes thereunder and the lateral movement forces the bar and its two end plates which are in juxtaposition to the transmitter and receiver respectively, to move upward, thereby interfering with the beams transmission. The interference created thereby shuts off the blister production machine and sounds an alarm for removal of the defective package.

REFERENCES:
patent: 4094129 (1978-06-01), List
patent: 4307555 (1981-12-01), Mlodozeniec
patent: 4472922 (1984-09-01), Romagnoli
patent: 5033251 (1991-07-01), Rodriguez
patent: 5040353 (1991-08-01), Evans et al.

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