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:
Oct. 22, 1985
Filed:
Jul. 20, 1984
Richard H Thomas, Phillips, WI (US);
Marquip, Inc., Phillips, WI (US);
Abstract
A device for cutting successive sheets from a traveling web includes a pair of thin-walled knife-carrying cutting cylinders concentrically mounted over fixed supporting shafts. To prevent ringing of the shafts at high cutting frequencies, due to resonant frequency interference, each support shaft is formed by a body having an inperforate cylindrical wall. The cylindrical wall of the support shaft is closed at both ends to form an uninterrupted cylindrical cavity extending from end to end of the cylindrical wall. Furthermore, and to prevent poor cuts due to changes in the alignment of the cutting knives, the amplitude of vibrations occurring at the time of each cut is reduced. The cavity of the support shaft is filled with a flowable vibration damping material which is not firmly affixed to the cavity walls and thus forms no significant part of the mass of the support shaft.