US PATENT SUBCLASS 73 / 864.62
.~.~.~ Expansible chamber

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

863  DF  SAMPLER, SAMPLE HANDLING, ETC. {11}
864  DF  .~ Capture device {9}
864.51  DF  .~.~ Receptacle type {5}
864.62.~.~.~ Expansible chamber

DEFINITION

Classification: 73/864.62

Expansible chamber:

(under subclass 864.51) Subject matter wherein the receptacle includes means to change its volume.

SEE OR SEARCH CLASS

166, Wells,

107+, for receptacles with pump or plunger means for sampling well fluid.