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. 02, 1999
Filed:
May. 05, 1997
Hubert Kania, Herne, DE;
Thomas Kolodzey, Bottrop-Kirchhellen, DE;
Norbert Lentz, Essen, DE;
Steffen Rotz, Essen, DE;
Krupp Kunststofftechnik GmbH, Essen, DE;
Abstract
A knife holder unit combined with a rotary knife pair includes a frame composed of an upper frame part and a lower frame part; and an upper and a lower knife holder assembly supported in the upper and the lower frame part, respectively. Each knife holder assembly includes a bearing shaft composed of a first bearing shaft part having a longitudinal axis and an adjoining second bearing shaft part. The first bearing shaft part is received in a recess of a respective frame part for turning motions therein about the longitudinal axis. A first securing arrangement immobilizes the first bearing shaft part relative to the respective frame part. A rotary bearing surrounds the second bearing shaft part and has a rotary axis which is offset relative to the longitudinal axis to define an eccentricity therewith. A rotary knife is mounted on the rotary bearing. The rotary knife of the first knife holder assembly and the rotary knife of the second knife holder assembly cooperate with one another and together define a cutting plane which passes through the rotary bearing of the upper and lower knife holder assemblies. A second securing arrangement affixes the rotary knife to the rotary bearing.