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, 2001
Filed:
Dec. 31, 1998
Chyi-Yiing Wu, Taipei, TW;
Other;
Abstract
An optical calibrating apparatus includes: a laser illuminator (,) disposed in an eccentric adjusting sleeve (,), an inner inclined adjusting sleeve (,) within a jacket (,), an outer inclined adjusting sleeve (,) outside the jacket (,), and a cylindrical casing (,), in which a laser line is emitted by the illuminator (,) for checking levelling, plumbing and verticality and the laser line has been calibrated for a horizontality or a verticality by rotating the eccentric adjusting sleeve (,), the inner and outer inclined adjusting sleeves (,) until the emitted laser line is aligned with a standard laser line emitted from a standard optical calibrator or aligned with a mark preset by a standard instrument.