US PATENT SUBCLASS 73 / 152.62
.~.~ With recorder


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

152.01  DF  BOREHOLE OR DRILLING (E.G., DRILL LOADING FACTOR, DRILLING RATE, RATE OF FLUID FLOW) {6}
152.61  DF  .~ Pump test {1}
152.62.~.~ With recorder


DEFINITION

Classification: 73/152.62

With recorder:

(under subclass 152.61) Subject matter combined with a means for keeping a permanent record of the determination of the physical characteristic of the borehole, the casing, or a drill rigging.

SEE OR SEARCH THIS CLASS, SUBCLASS:

152.45, for an apparatus for testing a borehole or drilling combined with means for making an electronic recording of a drill depth rate during drilling.

152.53, for an apparatus for testing a borehole or drilling by measuring pressure combined with means for making a record of the test.

SEE OR SEARCH CLASS

346, Recorders, appropriate subclasses, for a recorder for recording the operation of machines, particularly

33+, for recorders combined with external recorder operating means including a well logging apparatus and subclasses 112+ for graph-type recorders.

360, Dynamic Magnetic Information Storage or Retrieval, for magnetic storage and retrieval of arbitrarily variable information which is retained in a storage medium by variation of a physical characteristic thereof and wherein relative movement between a storage element and a source of information, a transducer, or a receiver is required.

365, Static Information Storage and Retrieval, for a recording apparatus not requiring relative movement between a storage element and a source of information, a transducer, or a receiver.

369, Dynamic Information Storage or Retrieval, appropriate subclass for a process of or an apparatus for the storage and retrieval of arbitrarily variable information which is retained in a storage medium by variation of a physical characteristic thereof and wherein relative movement between a storage element and a source of information, a transducer, or a receiver is required.