US PATENT SUBCLASS 96 / 90
.~.~.~ Spring or expansible bellows

Current as of: June, 1999
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96 /   HD   GAS SEPARATION: APPARATUS

15  DF  ELECTRIC FIELD SEPARATION APPARATUS (E.G., ELECTRICAL PRECIPITATOR, ELECTROSTATIC TYPE, ETC.) {17}
83  DF  .~ Electrode retaining or supporting means {6}
89  DF  .~.~ Tensioning means {2}
90.~.~.~ Spring or expansible bellows

DEFINITION

Classification: 96/90

Spring or expansible bellows:

(under subclass 89) Apparatus in which the tension is maintained by the use of spring means or bellows which may be expanded by stretching, with the spring means or bellows connected to the electrode in such a way as to maintain tension therein.