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. 02, 1980
Filed:
Jun. 06, 1979
Applicant:
Inventors:
Pietro Draghiccio, Corsico, IT;
Enrico Villa, Corsico, IT;
Assignee:
Rockwell-Rimoldi S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D05B / ; D05B / ;
U.S. Cl.
CPC ...
112200 ;
Abstract
A looper control apparatus for sewing machines which are adapted to form seams of double chain stitches both in a forwardly and reverse direction of sewing. The apparatus includes first and second driving devices for effecting travel of the looper in an elliptical pathway while sewing in a forwardly direction. A disconnecting mechanism is effective upon a selection to sew in a reverse direction in deactivating the second driving device so that the looper is actuated only by the first driving device which causes it to travel in a rectilinear pathway on one side only of the machine's needle.