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:
Apr. 15, 1997
Filed:
Feb. 21, 1996
Applicant:
Inventor:
Gerd Papajewski, deceased, late of Stutensee, DE;
Assignee:
AMF Reece, Inc., Mechanicsville, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D05B / ;
U.S. Cl.
CPC ...
112 76 ;
Abstract
A clamp for a buttonhole sewing machine includes two curved cantilevered arms which arch forward and downward to parallel feet portion. The clamp is supported on an extension of a movable clamping plate and moves with the clamping plate. A lever compresses a spring, pushing the clamp into firm engagement with the workpiece on the movable clamping plate. A detent holds the spring compressed and the clamp engaged until the end of the cycle, when the detent is released and the spring pushes the clamp upward so that the workpiece may be moved.