Optics: measuring and testing – Inspection of flaws or impurities – Having predetermined light transmission regions
Patent
1996-03-01
1997-09-02
Font, Frank G.
Optics: measuring and testing
Inspection of flaws or impurities
Having predetermined light transmission regions
356429, 356430, G01N 2100
Patent
active
056637918
ABSTRACT:
Apparatus and method for optically testing products such as condoms, gloves or any number of similar objects without contact and non-destructively. In testing for holes, a light source having a wavelength at which the product to be tested is relatively opaque is used to illuminate either the inner or outer wall of the product and a photo sensor sensitive to the particular wavelength is located to sense the amount of light passing through the wall of the product. In testing for embedded particles, a light source of visible light is used to illuminate the product to be tested and a photosensor senses any variation in the amount of light passing through the walls of the product.
In the testing of products, such as condoms, for the presence of holes, the condom is mounted on a transparent mandrel or distended by inflating the condom with a jet of air. A line of light derived from a light source having a wavelength at which the condom material, if free of defects, is relatively opaque, is projected onto the surface of the condom and a photosensor measures the amount of light passing through the surface of the condom. The light may be scanned about the surface of the condom while the condom is stationary. Alternatively, the line of light is stationary and the condom is rotated about the light. The photo sensor is positioned to sense the amount of light passing through the condom wall along a line corresponding to the line of light for determining the presence of a defect and its location.
REFERENCES:
patent: 3065615 (1962-11-01), Abrams
patent: 3659950 (1972-05-01), Troll et al.
patent: 3826923 (1974-07-01), Trimble
Lowrance John L.
Smith Stephen R.
Font Frank G.
Princeton Scientific Instruments Inc.
Ratliff Reginald H.
Schanzer Henry I.
LandOfFree
Apparatus and method for testing elastic articles does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for testing elastic articles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for testing elastic articles will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-312959