High speed well surveying and land navigation
CA 1325476 C · Owner: Applied Technologies Associates · Inventors: Van Steenwyk, Donald H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Land vehicle navigation apparatus combining a) inertial angular rate sensor structure having a sensitive axis, b) inertial acceleration or tilt sensor structure having at least two sensitive axes, these sensitive axes (having a known relationship) to the inertial angular rate sensor's sensitive axis, c) circuitry to accept from an external source an initial input value (or self initialization by rotary, multiple positioning) of the vehicle's azimuthal orientation angles, roll, pitch, and aximuth, with respect to an Earthfixed coordinate set as the land vehicle travels over the Earth surface, and wherein changes to the azimuth angle during travel are determined by integration of the output …
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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 December 21, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 21, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.