Patent ID: 8522445
Filing Date: 2013-09-03
Classification: B25H,G01B

Abstract:
1. Apparatus to mark a distance from an edge of a work-piece, comprising: a shaft extending along a longitudinal axis and including a graduations disposed aligned along the longitudinal axis; a marking blade affixed to an end portion of the shaft, substantially transverse to the longitudinal axis of the shaft; a fence assembly coupled to the shaft and movable along the longitudinal axis of the shaft, the fence assembly including a face configured to abut the edge of the work-piece; a graduation sensor coupled to the fence assembly and configured to monitor the graduations to provide a sensor signal associated with a distance between the fence assembly and the marking blade; a monitoring circuit coupled to the fence assembly in communication with the graduation sensor and configured to receive the sensor signal and to provide a distance signal including information associated with the distance; a display in communication with the monitoring circuit to receive the distance signal and display the information associated with the distance; and a thumb wheel, rotably fixed to the fence assembly, configured to roll along the shaft to move the fence assembly with respect to the shaft.