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. 07, 2012
Filed:
Mar. 27, 2008
Jeff Howerton, Portland, OR (US);
David Childers, Portland, OR (US);
Brian Johansen, Hillsboro, OR (US);
Mehmet Emin Alpay, Portland, OR (US);
Jeff Howerton, Portland, OR (US);
David Childers, Portland, OR (US);
Brian Johansen, Hillsboro, OR (US);
Mehmet Emin Alpay, Portland, OR (US);
Electro Scientific Industries, Inc, Portland, OR (US);
Abstract
An improved method and apparatus for drilling tapered holes in workpieces with laser pulses is presented which uses defocused laser pulses to machine the holes with specified taper and surface finish while maintaining specified exit diameters and improved system throughput. A system is described which can also drill holes with the desired taper and surface finish without requiring defocused laser pulses.