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:
Sep. 08, 1987
Filed:
Oct. 29, 1986
Applicant:
Inventor:
Walter von Stein, Waldkirch, DE;
Assignee:
Erwin Sick GmbH Optik Elektronik, Waldkirch, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D05C / ; D05C / ;
U.S. Cl.
CPC ...
112 8018 ; 112273 ; 250561 ; 200 6118 ;
Abstract
An optical thread breakage monitoring apparatus for tufting machines has a laser beam scanning apparatus (21). The retroreflecting strip (11) illuminated by this laser beam scanning apparatus (21) is secured above the eyes (12) of the needles (13) to the front side of the needle beam (14) (FIG. 1).