(under the class definition) Process or apparatus, not elsewhere classified, for forming apertures in sheet material and thereafter deforming the apertured portion of the sheet to (1) increase the area of, or change the shape of, the aperture and (2) increase the length or width of the sheet.
(1) Note. Apertures may be formed by cutting, punching, casting, drilling, milling, grinding, etc.
(2) Note. Deforming may include, for example, bending, corrugating, forging, rolling, or drawing.
(3) Note. Included herein is expanding of sheet material by simultaneously perforating and deforming the sheet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
896.6+, for a process of making multiple perforations in a metallic sheet, tube, etc.
SEE OR SEARCH CLASS
72, Metal Deforming, for shaping metal, other than expanded metal making, especially 185+, for cutting and deforming by a "flying" tool and subclasses 203+ for cutting and rolling.
83, Cutting, for cutting operatures in a sheet preliminary to expanded metal making.
228, Metal Fusion Bonding,
157, for bonding of multiple parts at spaced offset points into a single member and shaping the member to move the parts apart at the nonbonded areas.
428, Stock Material or Miscellaneous Articles,
596+, for metallic stock having an aperture or cut.
