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:
Apr. 20, 2004
Filed:
May. 01, 2002
Michael M. Stepan, Langley, WA (US);
Roger A. Gage, Marysville, WA (US);
The Boeing Company, Chicago, IL (US);
Abstract
A power feed apparatus for applying a thrust force to an output shaft of a motor driven tool to drive the output shaft linearly towards and away from a workpiece without applying off-axis forces to the output shaft that would cause it to move out of perfect perpendicular alignment to the outer surface of the workpiece. The apparatus includes a first tubular member which is fixedly secured to a jig or other like mounting structure associated with the workpiece. A second tubular member is disposed for sliding linear movement along the first tubular member. Spaced apart annular fluid chambers are formed within the apparatus along with associated fluid ports for allowing a pressurized fluid to be used to both extend and retract the output shaft of the tool. The tool itself is supported on the second tubular member and thus moves linearly along with the second tubular member.