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:
Jul. 07, 1987
Filed:
Apr. 04, 1986
Applicant:
Inventor:
Bengt A Bergvall, Huskvarna, SE;
Assignee:
Husqvarna Aktiebolag, Huskvarna, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D05B / ;
U.S. Cl.
CPC ...
112455 ; 112315 ;
Abstract
The feeding length in a sewing machine depends on the difference between the positions of the feeder when it rises above the stitch plate and when it sinks again. In previous devices the feeder is controlled by the angular position of a guide which is kept constant during the feeding phase. According to the invention the angular position of the guide can be re-adjusted during the feeding movement. At the moment when the feeder rises above the stitch plate the angular position determines a portion of the feeding length, while the angular position at the moment when the feeder sinks again determines the rest of the feeding length.