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:
Nov. 07, 2000
Filed:
Jul. 28, 1999
Bernd Pofalla, Bielefeld, DE;
Christian Mollenkamp, Offenbach, DE;
Durkopp Adler AG, , DE;
Abstract
A cutting device in a sewing machine for creating a slit opening for a buttonhole in a workpiece. First and second tool parts are spaced apart from each other in an open position and can be brought together in a closed position. One tool part has a block and the other tool part has a cutting edge. The block is formed in the shape of a strip, is accepted into a slit located on the sewing machine and is attached there with a clamping device. A slit opening can be created in a workpiece in a block-cutting mode by the cutting edge and the block. The cutting device can also be used for making a slit opening in a workpiece in a slit-cutting mode by removing the block and providing a different cutting edge, which can be performed in a simple manner.