Apparatus and a method for cleaving thin rods
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United States of America Patent
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Mar 1, 2011
Grant Date -
Sep 10, 2009
app pub date -
Jan 22, 2009
filing date -
Jun 25, 2002
priority date (Note) -
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Abstract
A method for cleaving thin rods of glass or quartz with a rod cleaving blade (27) and body (28) carrying the blade, is provided. The body (28) is of material varying in length through application of electric and/or magnetic fields. Driving force (31, 33) achieves relatively steady movement of the blade (27) towards a desired cleaving point and relatively steady small-amplitude vibratory component of movement towards and away from the cleaving point superimposed to the relatively steady movement, by influencing the body (28) electrically and/or magnetically. The blade is driven to vibrate with a frequency below 1 kHz during cleaving operation.
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