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:
Aug. 08, 2017
Filed:
Aug. 04, 2015
Applicant:
Kone Corporation, Helsinki, FI;
Inventors:
Gabriela Roivainen, Hyvinkää, FI;
Panu Ihalainen, Tervakoski, FI;
Assignee:
KONE CORPORATION, Helsinki, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66B 17/12 (2006.01); B66B 9/00 (2006.01); B66B 11/00 (2006.01); B66B 11/02 (2006.01); B66B 11/08 (2006.01);
U.S. Cl.
CPC ...
B66B 9/00 (2013.01); B66B 11/0226 (2013.01); B66B 17/12 (2013.01);
Abstract
An elevator includes a car and a counterweight suspended on hoisting ropes which are driven by a drive machine. The counterweight has a first side facing the elevator car path and a second side opposite to the car path. The counterweight includes at least one connecting passage between the first and second side of the counterweight. With this solution, air pressure built between the car and the counterweight when passing in the elevator shaft is reduced and the travel comfort is improved.