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Expired Canadian patentCanada

Method for determining position within the measuring volume of a coordinate measuring machine and the like and system therefor

CA 1310092 C · Owner: Brown, Stephen N. · Inventors: Bell, Frederick K.; Brown, Stephen N.; Gale, Michael T.

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Abstract From the Canadian patent

A COORDINATE MEASURING MACHINE AND THE LIKE AND SYSTEM THEREFOR ABSTRACT:, Axis correction or machine characteristic data is stored (108) in memory (110) within a control or measurement processor (36) of a CMM (10) (FIGURE 8). The axis correction data includes error data representing 21 different geometry errors (FIGURES 4A through 4C) of the CMM. As position information is required, the measurement processor captures the actual position signal from each machine axis sensor and uses this position signal to locate (112) a set of the axis correction data which describes the machine characteristics at that position. The measurement processor then mathematically combines (114) (FIGURE 9) the …

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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 November 10, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 10, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 21, 1987
GrantedNovember 10, 1992
Term endedNovember 10, 2009
Patent numberCA 1310092 C
Classification (IPC)G08C21/00 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedDec 21, 1987Patent grantedNov 10, 1992Term endedNov 10, 2009

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.