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:
Nov. 29, 1988
Filed:
Sep. 03, 1987
Applicant:
Inventors:
Hans Scholl, D-4811 Oerlinghausen-Lipperreihe, DE;
Hans-Jurgen Wessel-Schlickmann, D-5100 Aachen, DE;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D05B / ;
U.S. Cl.
CPC ...
1122623 ; 11212112 ; 11212114 ; 112259 ;
Abstract
A method for operating a sewing automat with a sewing head with a rotary housing provides a compensation signal for a drive motor, in particular for the x- and y-drive motors of the workpiece holder, respectively, in order to correct errors of stitch length resulting from the superposition of the motion of the rotary housing relative to its drive motions. In order to accomplish this, the method provides the detection of the angular position of the rotary housing from one stitch to the next and the generation of a compensation signal depending on this angle difference.