US PATENT SUBCLASS 399 / 331
.~.~.~.~ Pressure rollers

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

Internet Version by PATENTEC © 1999      Terms of Use


399 /   HD   ELECTROPHOTOGRAPHY

130  DF  IMAGE FORMATION {30}
320  DF  .~ Fixing (e.g., fusing) {9}
328  DF  .~.~ By heat and pressure {2}
330  DF  .~.~.~ Heated roller {3}
331.~.~.~.~ Pressure rollers {1}
332  DF  .~.~.~.~.~> Cyclically (e.g., with movement of copy)

DEFINITION

Classification: 399/331

Pressure rollers:

(under subclass 330) Subject matter wherein pressure is applied between a pair of roller members.

SEE OR SEARCH CLASS

29, Metal Working,

895+, for roller making.

492, Roll or Roller, for structure of rollers, per se.

OTHER CLASSIFICATION SYSTEMS:

ipc{2}G03G15/20, for fixing (e.g., by using heat).

jpofiG03G15/20 107, for driving the roller, using roller pressure. epcG03G15/20H2P, combined with pressure. G03G15/20H2P5, for details of pressure units (e.g., structure).