US PATENT SUBCLASS 65 / 273
.~ Planar sheet preform

Current as of: June, 1999
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65 /   HD   GLASS MANUFACTURING

269  DF  GLASSWORKING OR PREFORM BY OR WITH REHEATING MEANS (E.G., FLAME SEVERING) {8}
273.~ Planar sheet preform

DEFINITION

Classification: 65/273

(under subclass 269) Apparatus including means for converting sheet stock to or from planar sheet.

SEE OR SEARCH THIS CLASS, SUBCLASS:

103, for a process of reshaping a preform utilizing a heat sink or shield.

106, for a process of bending or curving sheet stock.

197, for means drawing sheet vertically combined with means to flattening the sheet after directional change to the horizontal.

268, for sheet flattening means combined with annealing means.

287+, for sheet bending molds, per se.