The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 29, 1995
Filed:
Feb. 09, 1994
Lennart D Hedman, Roscoe, IL (US);
The Ingersoll Milling Machine Company, Rockford, IL (US);
Abstract
A target is provided for attachment to a milled locator surface on a machine or to a fixture carrying a part to be machined. A plurality of spaced targets may be used to establish a datum plane. The target has an outer planar flat surface to be engaged by an indicator or used with a laser positioner device. The outer planar flat surface is located at a fixed distance from the milled locator surface, and this distance is usually recorded by indicia on a plate adjacent the indicator or on a cover that covers and protects the target. The outer target surface is parallel to the milled locator surface. To achieve this, the body of the target has inner, planar precisely finished surface that is parallel to the outer planar surface which is on the end of a threaded shaft. The precisely finished, inner planar surface is abutted against the milled surface on the tool or fixture. Anti-backlash springs remove any play from the threaded engagement.