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:
Nov. 28, 2017
Filed:
Mar. 31, 2016
Arrangement and a method for measuring the position of an installation platform in an elevator shaft
Tapio Vaarala, Helsinki, FI;
Pekka Kilpelainen, Oulu, FI;
Tapio Vaarala, Helsinki, FI;
Pekka Kilpelainen, Oulu, FI;
Kone Corporation, Helsinki, FI;
Abstract
The arrangement comprises an installation platform movable upwards and downwards in the elevator shaft, at least one light source arranged at a predetermined position in the elevator shaft below the installation platform and producing a vertically upwards directed collimated light beam, at least one primary digital imaging device positioned on the installation platform and being arranged to take electronic images of the light beam hitting the photosensitive sensor of the at least one primary digital imaging device or of a pattern created by the light beam on a reflective or transparent screen positioned at a distance in front of the photosensitive sensor of the at least one primary digital imaging device, whereby the horizontal position of the installation platform in relation to the elevator shaft can be measured from the electronic images taken by the at least one primary digital imaging device.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile