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:
Aug. 02, 2005
Filed:
Dec. 19, 2003
Applicants:
Christoph Heckner, Bielefeld, DE;
Markus Richter, Detmold, DE;
Inventors:
Christoph Heckner, Bielefeld, DE;
Markus Richter, Detmold, DE;
Assignee:
Dürkopp Adler Aktiengesellschaft, Bielefeld, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D05B057/14 ; D05B057/26 ; D05B057/36 ; D05B069/00 ;
U.S. Cl.
CPC ...
Abstract
A sewing machine with a hook () that is drivable in rotation about a vertical axis comprises a bobbin case () with a lifter cam (). A case lifter () is provided, having a sensing lever () and a lifter lever () that bears against a lifter cam (). The sensing lever rests on a cam face () of an axial cam disk () which is mounted on the transmission shaft that actuates a hook-driving shaft ().