Apparatus and method for detecting a heat seal in a moving plast

Details Apparatus and method for detecting a heat seal in a moving plast Apparatus and method for detecting a heat seal in a moving plast

1994-02-16

1996-01-30

Gonzalez, Frank

Optics: measuring and testing

By monitoring of webs or thread

356430, 356237, 356239, 2505594, G01N 2184, G01N 2100

Patent

active

054884802

ABSTRACT:
An apparatus and method are provided for detecting a formation or change in the consistency of a moving sheet material. The apparatus includes a radiation source, a radiation receiver, a support base for the sheet material, and a signal processor for producing a signal in response to the detection of a formation in the material. The apparatus may be modified to include moving or stationary support bases, and may be further modified to include structure for automatically positioning the source and receiver to optimize the detection of formations.

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