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:
Jan. 16, 2007
Filed:
Mar. 13, 2006
Applicants:
Gerard Durville, Gipf-Oberfrick, CH;
Roland Beer, Weinfelden, CH;
Beda Steinacher, Baden, CH;
Michael Berger, Constance, DE;
Inventors:
Gerard Durville, Gipf-Oberfrick, CH;
Roland Beer, Weinfelden, CH;
Beda Steinacher, Baden, CH;
Michael Berger, Constance, DE;
Assignee:
itz Gegauf Aktiengesellschaft RNINA-Nahmaschinenfabrik, Steckborn, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D05B 59/02 (2006.01); D05B 57/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
To determine the thread supply on a lower-thread bobbin (), holes () are arranged in the shape of a spiral in a flange () of the bobbin. Light from a light source (), which is directed towards the flange (), is reflected only by those holes (), behind which there is no longer any thread, so that the light beams () reach the rear flange () and can be reflected therefrom and received by the light receiver ().