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. 13, 1983
Filed:
Sep. 08, 1980
Applicant:
Inventor:
Jurgen Hartwig, Ettlingen, DE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B / ;
U.S. Cl.
CPC ...
318685 ; 318696 ; 318318 ; 11212112 ;
Abstract
A device for controlling the drive of a stepping motor to adjust the lateral stitch bight and/or the feed length of a sewing machine comprising apparatus connected to the stepping motor for rendering the stepping frequency of the stepping motor variable as a function of the speed of the sewing machine. The apparatus comprises a microcomputer which is connected to a pulse transmitter for transmitting pulses proportional to the speed of the sewing machine.