Emhart Industries, Inc.

Emhart Glass Machinery Investments Inc.

Robert A Hansen

Russ J Baker

Paul F Scott

Edward F Vozenilek

Leo B Baldwin

Jayesh K Champaneri

A machine for inspecting containers is disclosed which has a number of adjustable structures such as the focus, orientation and zoom of a camera and mirrors which are used to direct an image to the sensor of the camera. The computer defines a gage for each adjustment and sequentially activates the gages on the computer screen.

Container inspection machine having sequentially accessed computer

A display generator presents a plot of rate of change of light intensity vs. number of containers and a threshold is located along this plot to separate acceptable from unacceptable containers. A rejection controller receives this threshold data and rejects containers having a higher intensity rate of change.

Glass container inspection machine with plot display of container and

A device for inspecting a glass container to evaluate its wall thickness. The minimum thickness, the maximum thickness and the minimum to maximum thickness ratio are calculated and an inspected bottle is rejected based on one or more of these three parameters.

Glass container inspection machine with rejection parameter selector

The thickness of a formed glass container is evaluated around its wall periphery by making a selected sampling of voltage data. An encoder is used which displaces the periphery past a sensor and sampling is synchronized with the pulses of the encoder. When a seam is detected, sampled data is ignored for a chosen number of pulses prior to as well as following and the number of pulses is set by defining the diameter of the container.

Glass container inspecting machine

A selected number of data samples is taken around the periphery of the wall of a container to determine the voltages corresponding to the thinnest and thickest wall locations. These two voltages are then converted to dimensions and a minimum to maximum ratio is calculated using these two dimensions. Where this ratio is lower than a minimum settable value, the bottle will be rejected.

Growing community of inventors

Elmira, NY, United States of America

Robert A Hansen