US PATENT SUBCLASS 65 / 269
GLASSWORKING OR PREFORM BY OR WITH REHEATING MEANS (E.G., FLAME SEVERING)

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


65 /   HD   GLASS MANUFACTURING

269GLASSWORKING OR PREFORM BY OR WITH REHEATING MEANS (E.G., FLAME SEVERING) {8}
270  DF  .~> Envelope tipping off type
271  DF  .~> Heating means movable relative to work during shaping operation
272  DF  .~> Work, workholder, or tool correlated burner control
273  DF  .~> Planar sheet preform
274  DF  .~> With spaced preheating means
275  DF  .~> Mechanical means to reshape preform {1}
284  DF  .~> Fire-polishing means
285  DF  .~> To reshape preform by flame pressure or gravity

DEFINITION

Classification: 65/269

(under the class definition) Apparatus comprising preform supporting means combined with heating means for accomplishing a glass working operation.

(1) Note. Heating of a preform so that the outer surface becomes molten and is shaped by surface tension and/or gravity is considered a glass working operation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

102+, for a process of reshaping a glass preform.

152+, for fusion bonding means including work holders and heating means; see the "Search Notes" thereunder.

SEE OR SEARCH CLASS 148, Metal Treatment,

9, for a process of cutting metal by heat.

432, Heating,

122+, for a residual heating device having means manipulating or orienting an article.