(under subclass 289) Apparatus where the severing means is a perforator which includes means to (1) penetrate through one dimension of the work with the resulting perforation not intersecting an edge of the work other than the edges defining the dimension referred to or (2) effect a partial penetration of work by movement into a surface of the work and removal of material therefrom without any significant movement along the surface.
(1) Note. To distinguish between this subclass, subclass 298 and other similar subclasses the intent of the inventor must be considered to some extent. For example, the primary product of this subclass is a preform with holes therein, the excavated material being waste; in subclass 298 the product may be the excavated material while the waste is the preform with the holes therein.
SEE OR SEARCH THIS CLASS, SUBCLASS:
385, for apparatus for molding or forming a preform in combination with a surface deformation of the preform.
SEE OR SEARCH CLASS
30, Cutlery,
358+, for hand operated or material supported perforators; see the class definition thereof for statements of the lines with other classes. 83, Cutting, appropriate subclasses for apparatus for perforating without molding.
