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:
Mar. 20, 1984
Filed:
Sep. 03, 1982
Applicant:
Inventor:
Ralph E Johnson, Convent Station, NJ (US);
Assignee:
The Singer Company, Stamford, CT (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
D05B / ; D05B / ; D05B / ;
U.S. Cl.
CPC ...
1121 / ; 112184 ; 112242 ;
Abstract
A variable under thread pull off device in a sewing machine for providing the proper amount of slack in the bobbin thread to effect uniform stitch formation. The device will pull off a varying amount of bobbin thread to correspond to that which is required for each particular bight position of the stitch being set.