US PATENT SUBCLASS 62 / 67
.~.~ With filtering or gravitational separating
Current as of:
June, 1999
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62 /
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REFRIGERATION
56
DF
PROCESSES
{28}
66
DF
.~ Congealing flowable material, e.g., ice making {5}
67
.~.~ With filtering or gravitational separating
DEFINITION
Classification: 62/67
(under subclass 66) Processes including filtration or gravitational separation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
85, for other processes involving separating of undesirables from a coolant or cooled material.
318+, for related apparatus.
532+, for fractional crystallization of at least one constituent of a mixture of constituents of different kinds.
SEE OR SEARCH CLASS
210, Liquid Purification or Separation, 767+, for processes and subclasses 175+ for apparatus functioning for a more general purpose.
