US Patent 7333203 Device for scanning a yarn with a light beam

Patent 7333203 was granted and assigned to Uster Technologies on February, 2008 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Uster Technologies

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

73332030

Patent Inventor Names

Philipp Ott0

Date of Patent

February 19, 2008

Patent Application Number

105342470

Date Filed

November 6, 2003

Patent Primary Examiner

‌

Gregory J. Toatley, Jr

Patent abstract

The invention relates to a device for scanning a thread, which is displaceable in the longitudinal direction thereof inside a measuring slot, by means of an optical beam emitted by a light source. The device includes a receiver of light reflected on the thread and a unit for processing electrical signals received by the receiver. The aim of the invention is to develop a small-sized device which is easy to operate and which makes it possible to detect foreign matter contained in the thread in a most selective manner at a high sensitivity. For this purpose, the light emission in at least two wavelength ranges is carried out by means of a light source, with these wavelength ranges being determined by two main wavelengths.