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:
Jun. 07, 1994
Filed:
Feb. 25, 1992
Kabushiki Kaisha Topcon, Tokyo, JP;
Abstract
A clinometer provided with a level vial filled with a transparent liquid and a bubble, and a projector for irradiating the level vial. The clinometer includes center calculating means for calculating the center of a bubble from light receiving signals of first and second line sensors and inclination calculating means for calculating an inclination of the level vial from the center calculated by the center calculating means, wherein the first and second line sensors which receive light passing through the level vial are crossed at right angles and located so that the crossed point exists on the central axis of the level vial.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile