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Compass with improved reading precision

  • US 8,296,960 B1
  • Filed: 07/13/2011
  • Issued: 10/30/2012
  • Est. Priority Date: 07/13/2011
  • Status: Active Grant
First Claim
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1. A compass comprisinga base member;

  • and a vial assembly pivotally coupled to said base member, the vial assembly comprising;

    a vial with at least one orienting marker;

    an azimuth ring; and

    a magnetized indicator member journaled in the vial, the magnetized indicator member pointing to magnetic north;

    wherein the magnetized indicator member comprises a through hole; and

    the orienting marker has an outer contour, wherein the shape of the outer contour of the orienting marker essentially corresponds to the shape of the inner contour of the through hole, such that outer contour of the orienting marker virtually matches the inner contour of the through hole when pointing northwards.

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