Blister pack scanner device
First Claim
1. A blister pack photoelectric laser sensor device for the detection of overfilled and defective blister cavities comprising:
- a) a housing base;
b) a laser transmitter disposed at one end thereon;
c) a photoelectric sensor disposed opposite said transmitter for receiving a laser signal therefrom, and;
d) a scanner beam interference bar disposed between said transmitter and said sensor, said interference bar comprising a centrally grooved top surface for alignment of said laser beam, a bottom surface and two end posts that elevate the bottom surface of said bar slightly above the housing base to allow a plastic polymer blister pack web to pass therethrough.
1 Assignment
0 Petitions
Accused Products
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.
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Citations
9 Claims
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1. A blister pack photoelectric laser sensor device for the detection of overfilled and defective blister cavities comprising:
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a) a housing base; b) a laser transmitter disposed at one end thereon; c) a photoelectric sensor disposed opposite said transmitter for receiving a laser signal therefrom, and; d) a scanner beam interference bar disposed between said transmitter and said sensor, said interference bar comprising a centrally grooved top surface for alignment of said laser beam, a bottom surface and two end posts that elevate the bottom surface of said bar slightly above the housing base to allow a plastic polymer blister pack web to pass therethrough. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification