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. 10, 1991
Filed:
May. 22, 1989
Kevin H Crow, Lima, OH (US);
Melvin L Morris, Spencerville, OH (US);
William F Derouchie, Southfield, MI (US);
Dan W Prevost, Livonia, MI (US);
Airfoil Textron Inc., Lima, OH (US);
Abstract
A coordinate measuring machine is used to extract data points from an airfoil surface. The machine is controlled to move a probe to desired points by a generic program applicable to any airfoil and a nominal data file specific to the type of airfoil being measured containing coordinates of desired data points, surface normal vectors and optional machine control instructions arranged in the order of usage. The program reads the data file and predicts the location of corresponding data points on the surface from the file data and deviation information available from already-sampled data points on the blade. An analysis program accepts the data points, mathematically reconstructs portions of the airfoil and measures dimensions from those portions. The dimensions are compared to tolerances read from another file specific to the airfoil type.