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:
Jun. 20, 1978
Filed:
Feb. 28, 1977
Kenneth Francis Kaltenbach, Leonia, NJ (US);
Alfred John Zenger, Montville, NJ (US);
The Singer Company, New York, NY (US);
Abstract
A feed system for an industrial sewing machine having a toggle type stitch regulator. The feet stop for determining forward stitch length is located in the sewing machine frame for direct engagement with the stitch length regulating yoke to reduce vibration and noise in the system. The feed length is adjusted by a knob through a gear train connected through the bed of the machine to the stop abutment so as to allow stitch length adjustment without tipping the sewing machine. An elastomeric dynamic damper is included in the regulating system so that during reverse feed when the regulating yoke is displaced from the stop abutment the damper is effective to reduce vibration and noise that would normally travel through the system to the reversing lever.