The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 19, 2008
Filed:
Oct. 07, 2005
Olav Birlem, Schwalmtal, DE;
Olav Birlem, Schwalmtal, DE;
Oerlikon Textile GmbH & Co. KG, Monchengladbach, DE;
Abstract
A yarn sensor for optically scanning a yarn (), traveling longitudinally through a measurement gap (), includes a light source () projecting a beam of light into the measurement gap (), at least one receiver () for directly transmitted light, and light transmitting elements () transmitting the light between the light source (), measurement gap (), and receivers (). The light source () is an emitter with Lambert's emission characteristics. The light-transmitting element () includes a diaphragm and a lens, and the diaphragm is projected approximately into infinity. A diffusor () located between the light source () and the diaphragm generates radiation that passes through the diaphragm and is symmetrical to the optical axis of the lens. The yarn sensor can be used in the textile industry in spinning or bobbin winding machines with improved quality of the measurement results.