Universal interface method and apparatus for subsurface earth formation testing
CA 1202712 A · Owner: Dresser Industries, Inc. · Inventors: Flagg, Jack J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A universal interface and method of interfacing between a subsurface controller and a logging instrument disposed within a well logging sonde. A given interface is selectively addressable by its respective address strapping, accessing the interface exclusively to the data input/output bus between the controller and the interface. Once addressed, the interface delivers commands from the controller to its respective logging tool or receives such commands for internal use. In one embodiment, the interface includes an internal counter for counting pulses from the tool to which it is interconnected and delivering the cumulative count on the data bus. The embodiment further includes optional …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted April 1, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 1, 2003.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.