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:
Jan. 01, 1980
Filed:
Aug. 11, 1978
Robert B Brauch, Wayne, NJ (US);
Russell Pepe, Piscataway, NJ (US);
The Singer Company, New York, NY (US);
Abstract
A method for insuring that a traveling buttonhole presser foot, which is normally spring biased to an initial start position prior to movement of the traveling part thereof during the formation of a buttonhole, is located in the initial start position. As an initial step prior to the formation of the buttonhole, the sewing machine is operated for at least one stitch with the reversible feed regulating system thereof arranged to feed the work material in a direction to relax the biasing spring.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile