G - Physics – 01 – M
Patent
G - Physics
01
M
349/29, 358/5
G01M 3/38 (2006.01) G01M 13/00 (2006.01)
Patent
CA 1282499
Abstract of the disclosure A method and a device for the control of a joint between a first element and a second element. The first element preferably is an end element of a container and is inserted in an opening in said container such that a rim is formed around the opening and includes a joint. The rim allows the placement of a radiation or wave energy transmitting source at one side thereof and a detector device at the other side. The radiation or wave energy source has a capacity of penetrating, preferably fully, the rim and illu- minating said rim by a small dot, which is scanned crosswise the width of the joint by a scanner device. The container is rotated around an axis and the detector device registers the characteristics of the radiation that passes the joint and/or is reflected at the joint and which originates from a repeated "point illumination of the joint". By placing the detector device at a sufficient distance from the rim there is obtained a magnifying effect in the detector, which allows the detection of very small changes in the quality of the joint. The method and the device are especially suited for joints comprising substantially plastics material and where the pro- duct, which may affect the joint also substantially consists of an organic material, for instance a food product.
552902
Larsson Lennart
Ohlsson Hakan
Ullman Bo
Ab Akerlund & Rausing
Larsson Lennart
Marks & Clerk
Ohlsson Hakan
Ullman Bo
LandOfFree
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