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:
Apr. 07, 1998
Filed:
Feb. 12, 1996
Manfred Dungs, Klein-Ostheim, DE;
Branson Ultraschall, Dietzenbach, DE;
Abstract
The present invention relates to a cutting device for making holes, in particular holes in walls of hollow bodies made of plastic material, comprising a mount to which a cutting tool for cutting out a hole is secured, the mount being rotatably driven and performing an axial feeding motion, and an engaging member penetrating a disk which becomes separated in cutting the hole, the engaging member centrically penetrating the disk with respect to the periphery of the hole and withdrawing the separated disk which is then removed from the engaging member. The engaging member is axially displaceable and rotatably driven independent of the cutting tool and includes a self-cutting threaded profile turned into the disk before starting the cutting operation of the cutting tool and engaging the disk by forming a thread by means of the self-cutting thread of the engaging member.