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:
Dec. 08, 2009
Filed:
Oct. 16, 2006
Neal A. Froeschner, Florissant, MO (US);
Jim S. Piszar, Chesterfield, MO (US);
Neal A. Froeschner, Florissant, MO (US);
Jim S. Piszar, Chesterfield, MO (US);
The Boeing Company, Chicago, IL (US);
Abstract
A tool for trimming the ends of stiffeners on aircraft composite skin panels accurately, rapidly and without damaging the underlying skins includes an expandable guide frame adapted to straddle and clamp to the stiffener at a selected longitudinal position thereon. The frame includes a pair of planar guide faces disposed on opposite sides of the stiffener and lying in a common plane transverse thereto. The rotatably supported opposite ends of a rotating abrasive drum are slid along respective ones of the guide faces such that the drum grinds away the stiffener in a plane parallel to the plane of the guide faces and thereby forms a trimmed end on the stiffener. The frame includes mechanisms for adjusting the angular inclination of the plane of the guide faces relative to the plane of the composite skin, and for preventing the grinding mechanism from cutting into the composite skin.