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:
Jul. 05, 1988
Filed:
Jun. 22, 1987
Applicant:
Inventors:
Gunter Rohr, Hemmingen, DE;
Wolfgang Norz, Schwieberdigen, DE;
Assignee:
Union Special G.m.b.H., Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D05B / ;
U.S. Cl.
CPC ...
112278 ; 250561 ;
Abstract
A thread break detector for a thread in a sewing machine comprising, a sensor device having a signal path cross section for scanning, a first thread guide disposed on one side of the sensor device, and a second thread guide disposed on the other side of the sensor device and being movable in synchronism with the stitch formation of the sewing machine, such that the second thread guide deflects the thread in the region of the sensor device a greater amount than the cross section of the sensor device signal path.