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. 01, 1987
Filed:
Nov. 07, 1985
Applicant:
Inventors:
Assignee:
Janome Sewing Machine Co Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D05B / ;
U.S. Cl.
CPC ...
112254 ;
Abstract
A device for regulating upper thread tension in a sewing machine having an upper thread tension device with two discs receiving an upper thread therebetween, a spring pressing the discs one against the other, a presser body positioned between the spring and the discs, and a manually operated dial for actuating the presser body, the regulating device having an indicator for indicating a thread tension of a proper value and operatively connectable to the dial and movable thereby, in which a relation between a moving amount of the presser body and a moving amount of the indicator is regulated and a pressure of the thread tension is adjusted to the movement of the thread tension indicator.