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. 03, 1993
Filed:
Oct. 22, 1991
Charles E Brinley, Addison, MI (US);
Anthony Industries, Inc., Adrian, MI (US);
Abstract
A warp sensing apparatus for measuring the displacement or warp in disk-shaped objects such as drum lids and the like. A drum lid or other disk-shaped object is centered on the apparatus and clamped at the axis of rotation of the disk-shaped object. After the disk-shaped object is clamped, a contact probe of a transducer is positioned on the surface of the disk-shaped object to measure bidirectional displacement of the contact probe perpendicular to the surface of the disk-shaped object caused by undulations in the surface of the disk-shaped object. A manual rotating wheel permits the disk-shaped object to be rotated. A meter readout on the transducer displays the magnitude and direction of the contact probe displacement caused by undulations in the disk-shaped object as the disk-shaped object is rotated.