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:
Feb. 05, 1980
Filed:
Apr. 03, 1978
Applicant:
Inventors:
Enrico Villa, Milan, IT;
Angelo Radice, Milan, IT;
Assignee:
Rockwell-Rimoldi, S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D05B / ; D05B / ; D05B / ;
U.S. Cl.
CPC ...
112165 ; 112235 ; 112254 ;
Abstract
A method and apparatus for forming a continuous chain of stitches between pieces of material on a double needle sewing machine which includes a sensing device for detecting the presence of material in the sewing area and connected to the sensing device elements are provided for releasing the tension on one of the needle threads upon indication of absence of material in the sewing area. Additionally an auxiliary feed device functioning in cooperation with the machine's feed dog and needle plate is effective in simultaneously advancing the untensioned needle thread with the single chain of stitches being formed.