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:
Dec. 12, 1989
Filed:
May. 16, 1988
Applicant:
Inventors:
Masao Ogawa, Nagoya, JP;
Toshio Sasaki, Inazawa, JP;
Assignee:
Brother Kogyo Kabushiki Kaisha, Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D05B / ;
U.S. Cl.
CPC ...
112254 ; 112229 ; 112250 ; 112255 ; 112302 ;
Abstract
In a sewing machine provided with a thread supply stopping device for selectively controlling supply of a needle thread between a needle thread supply source and a take-up lever, an adjustable pre-tension exerting device exerts a tension equal to or lower than a tension of a bobbin thread on the needle thread between the needle thread supply source and the thread stopping device.