Patent ID: 6688012
Filing Date: 2004-02-10
Classification: G01C,Y10T

Abstract:
A surveying pole for use in locating a position in a survey of land, the surveying pole comprising:a first pole section; a second pole section telescopingly received in the first section for extension and retraction relative to the first section; a lock to selectively lock the second pole section in a fixed position of extension from the first pole section, the lock comprising a base mounted on the first pole section, a movable clamping jaw supported by the base, and an actuator for use in moving the jaw between a locked position in engagement with the second pole section and an unlocked position spaced from the second pole section; the movable clamping jaw comprising a rigid jaw member and an elastomeric pad mounted on the jaw member, the elastomeric pad including an engagement surface positioned for engaging the second pole section in the locked position of the lock, at least one of the elastomeric pad and the jaw member being shaped to provide frictional resistance to relative telescoping movement between the first and second pole sections in the locked position which increases upon application of force tending to induce such relative telescoping movement.