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:
Jan. 30, 1990
Filed:
Jul. 25, 1988
Timothy L Irwin, Ann Arbor, MI (US);
William L Clayton, Jr, Fowlerville, MI (US);
Other;
Abstract
A method and apparatus for trepanning a workpiece by controlling laser energy on variable diameters thereof includes the method steps of directing a collimated beam of energy against the workpiece and shifting and rotating the collimated beam so as to orbit a focal point on the workpiece to change the trepanning diameter. Apparatus for practicing such method includes a lens housing with a lens holder which is easily removable and is also positionable with respect to a reference axis by a pneumatic pressure acting against a spring loaded stop and further including means for rotating the lens housing on the reference axis to orbit the focal point of a collimated beam of laser energy about the reference axis to vary the trepanning diameter.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile