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:
Nov. 10, 1998
Filed:
May. 17, 1995
Philippe Roger Martin, Aubevoye, FR;
Societe Europeenne de Propulsion, Suresnes, FR;
Abstract
The present invention relates to a copying cutter provided with a cylindrical or conical body having a spherical end, constituting the active portion of the cutter, said end including a plurality of flutes inclined at a determined angle .theta. relative to the longitudinal axis of the cutter and formed along circular arcs at a determined distance x from the midplane P of the cutter, an inside face and an outside face of each of the flutes constituting, after machining, respectively a cutting face and clearance faces of each tooth of the cutter. The clearance faces comprise a first clearance face and an additional clearance face presenting at least a first facet. The cutting face has a cutting angle .gamma. given by the following equation: ##EQU1## where R is the radius of the cutter. The present invention also relates to a method of manufacturing the cutter.