Patent · US Active

Apparatus and a method for cleaving thin rods

US7896208B2 · kind B2 · utility

1Cited by

10References

16Claims

0Family size

Assignee

Nyfors Teknologi AB · SE

Inventor

Uwe Böttcher · Uttenreuth, DE

Key dates

Filing date	Jan 22, 2009
Grant date	Mar 1, 2011
Priority date	—
Expiry date	Jan 22, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T225/386
WIPO fieldOptics
WIPO sectorInstruments

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.