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:
Feb. 24, 1981
Filed:
Feb. 01, 1979
Applicant:
Inventors:
Horst Rathert, Minden, DE;
Winfried Hedrich, Rahden, DE;
Assignee:
Rahdener Maschinenfabrik August Kolbus, Wesphalia, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B42B / ;
U.S. Cl.
CPC ...
112 21 ; 112304 ;
Abstract
A device for thread stitching layers to form a book wherein the stitching apparatus comprises a conveying mechanism for transporting a plurality of open layers in spaced relation to each other, the conveying device transporting the layers with respect to at least one spiral sewing needle which is rotationally driven, the point of the spiral needle penetrating into the layer backs and exiting the layer backs to stitch the layers together in sequence.