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. 04, 1990
Filed:
Mar. 01, 1989
Applicant:
Inventor:
Hans-Jurgen Scheinhutte, Schindellegi, CH;
Assignee:
Gebruder Loepfe AG, Kempten, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D01G / ;
U.S. Cl.
CPC ...
19297 ; 1910 / ;
Abstract
For detecting neps in a textile fiber fleece band transported along a transporting path through a carding machine a detecting device comprises a mechanism for illuminating the fiber fleece band on at least one area located on the transporting path. Imaging optics project an image of this illuminated area onto the surface of one of a plurality of photo sensor elements. The area projected onto each one of the photo sensor elements substantially corresponds to the size of the neps to be detected. The photo sensor elements are connected to evaluation circuits for evaluating light intensity variations caused by neps passing the illuminated area.