US PATENT SUBCLASS 73 / 863.51
.~.~ Having an upstream-facing-opening-type capture element

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

863  DF  SAMPLER, SAMPLE HANDLING, ETC. {11}
863.41  DF  .~ Flow divider, deflector, or interceptor {4}
863.51.~.~ Having an upstream-facing-opening-type capture element {6}
863.52  DF  .~.~.~> With receptacle {1}
863.54  DF  .~.~.~> Mounted for reciprocation
863.55  DF  .~.~.~> Oscillating
863.56  DF  .~.~.~> Rotary
863.57  DF  .~.~.~> With blocking means
863.58  DF  .~.~.~> Pitot tube type

DEFINITION

Classification: 73/863.51

Having an upstream-facing-opening-type capture element:

(under subclass 863.41) Subject matter wherein the capture

element or elements define an aperture or slot facing the direction of origin of source flow at the time a sample is taken.

SEE OR SEARCH THIS CLASS, SUBCLASS:

863.41, for a single blade movable capture element which deflects a sample to one side of a flowing source and the residue to the other side.