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:
Sep. 06, 2011
Filed:
May. 12, 2010
John D. Spalding, Ann Arbor, MI (US);
John D. Spalding, Ann Arbor, MI (US);
GII Acquisition, LLC, Davisburg, MI (US);
Abstract
A calibration device for use in an optical, part measuring system is provided. The device has a central axis and a plurality of regions which are rotationally symmetric about the axis. The device includes a series of step-shaped portions defining a multi-step region having a plurality of step edges. A profile of the multi-step region contains information for calibrating the system. The device further includes a plurality of cylindrically-shaped portions spaced apart along the axis and defining constant diameter regions containing information for calibrating the system. The device still further includes a frustum-shaped portion defining a pair of spaced, slope edge regions and a sloped region having boundaries marked by the pair of slope edge regions. The frustum-shaped portion has first and second diameters at its boundaries which define a range of diameters of parts capable of being measured in the system. A profile of the slope edge regions and the sloped region contains information for calibrating the system.