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:
Mar. 04, 2003
Filed:
Apr. 18, 2001
Applicant:
Inventor:
Karl-Ludwig Manuel, Otterbach, DE;
Assignee:
Pfaff Industrie Maschinen AG, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D05B 7/900 ;
U.S. Cl.
CPC ...
D05B 7/900 ;
Abstract
A sewing machine with a light barrier used to detect the edge of a workpiece has an optical light guide ( ) connected to the light source ( ). The optical guide ( ) is arranged in the thread guide hook ( ). The thread guide hook ( ) is fastened to the front side of the head ( ) of the housing and is designed as a small tube for this purpose.