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. 01, 2008
Filed:
Apr. 12, 2006
Michael Hermann, Villingen, DE;
Werner Landmann, Ismaning, DE;
Michael Hermann, Villingen, DE;
Werner Landmann, Ismaning, DE;
Pruftechnik Dieter Busch AG, Ismaning, DE;
Abstract
A spacer device for laser-optical measurement of hollow cylinders has at least two, preferably three arms which are coupled or interlaced with one another and which can be moved relative to one another. Each of the arms has a measurement roller on one end which is brought into contact with the inner surface of a hollow cylinder to be measured and which can be rolled thereon, if necessary. An instrument platform is attached to the spacer device so that a light emitter (e.g., laser) and/or receiver or reflector can be attached at the central position of the instrument platform. The device is used to determine the three-dimensional position of the hollow cylinder to be measured.