Food or edible material: processes – compositions – and products – Direct application of electrical or wave energy to food...
Patent
1980-10-09
1982-11-09
Corbin, Arthur L.
Food or edible material: processes, compositions, and products
Direct application of electrical or wave energy to food...
99451, 99568, 219121FS, 219121L, 219121LM, 219121LS, 219121LZ, 426482, A23L 1212
Patent
active
043584675
ABSTRACT:
The removal of shells from hard shelled nuts, particularly macadamia nuts, is accomplished by rotating the nut in the path of a high power cw laser beam, such as a CO.sub.2 laser beam, so as to burn a path around the shell which separates the shell into parts which can readily be removed from the nut. A low power laser beam of a wavelength for which the nut shell and underlying nut meat have substantially different reflectivities, such as a helium-neon laser beam, is arranged to strike the nut collinearly with the high power beam. When the nut meat is exposed as the path in the shell is burned away, the intensity of the low power beam light which is reflected by the nut increases, and this increase is detected to give an indication of the completion of the shell burning operation.
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Time Magazine, 7-12-68, p. 49.
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