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:
Jan. 30, 2001
Filed:
Sep. 10, 1999
Michael C. Leemhuis, Nicholasville, KY (US);
Daniel J. Westhoff, Georgetown, KY (US);
Lexmark International, Inc., Lexington, KY (US);
Abstract
An apparatus for corrugating material includes an upper shaft rotating about a first longitudinal axis and a lower shaft rotating about a second longitudinal axis. Either the upper shaft, the lower shaft, or both shafts are constructed of a flexible material. At least one upper corrugation roll is secured to the upper shaft, and at least one lower corrugation roll is secured to the lower shaft. The upper corrugation roll and the lower corrugation roll are interspersed relative to each other and spaced such that the material is fed between the upper and the lower corrugation roll to corrugate the material. Materials of varying rigidities may be passed between the upper and lower corrugation rolls such that lighter weight material is corrugated while heavier weight material deflects the flexible shaft(s) to reduce corrugation.