E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/2
E21B 49/00 (2006.01) E21B 33/124 (2006.01) E21B 34/14 (2006.01) E21B 47/01 (2006.01) E21B 49/08 (2006.01)
Patent
CA 1112557
SAMPLER AND MEASUREMENT APPARATUS ABSTRACT OF THE DISCLOSURE Sampler and measurement apparatus in the form of a tube having opposite ends to be used with casings axially aligned therewith to form a common passageway through which can be moved instruments for taking samples and/or measure- ments, and operating tools. At least one port is formed in the tube spaced from the ends thereof. A sleeve slidably mounted in the tube is movable longitudinally thereof between one position covering the port and another position uncovering it.
339196
Mcfarlane James D.
Patton Franklin D.
Fetherstonhaugh & Co.
Westbay Instruments Ltd.
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