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. 29, 1980
Filed:
Jul. 05, 1979
Applicant:
Inventors:
Stephen A Garron, Elizabeth, NJ (US);
Robert Sedlatschek, Bridgewater, NJ (US);
John J Sudano, Paterson, NJ (US);
Assignee:
The Singer Company, Stamford, CT (US);
Primary Examiner:
Int. Cl.
CPC ...
D05B / ;
U.S. Cl.
CPC ...
112320 ; 1121 / ;
Abstract
A sewing machine is provided with an electronically controlled top feed arrangement wherein an upper feed dog and a presser foot are adapted to alternately apply and relieve pressure upon a work fabric, the upper feed dog and the presser foot being oppositely phased with respect to each other. A linear actuator is coupled to reciprocate the upper feed dog along a feed line and a memory stores feed data including for each stitch a first data portion for controlling the feed stroke of the upper feed dog and a second data portion for controlling the return stroke of the upper feed dog.