Patent ID: 6085434
Filing Date: 2000-07-11
Classification: G01B

Abstract:
A telescoping measuring device for measuring distances between selected points, the measuring device comprising:a base arm having a zero end for alignment with one of the selected points;an end arm having a measuring end for alignment with another of the selected points;a plurality of sequentially deployed, telescoping intermediate arms for sequential deployment between the base arm and the end arm, the intermediate arms comprising stop slots and push down ramps;a longitudinal serial of graduations operatively associated with the base arm, end arm, and intermediate arms for measuring the distances between the selected points; anda sequential deployment assembly for sequentially deploying the end arm and the intermediate arms, and the deployment assembly includes:a movable crossbar extending through the stop slots of the intermediate arms;a resilient member biasing the movable cross bar into the stop slots; andthe resilient member being overcome by the push down ramps as the intermediate arms are fully extended to move the crossbar sequentially out of the stop slots.