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:
May. 14, 2013
Filed:
Dec. 08, 2008
Hans Kocher, Udligenswil, CH;
Jan André Wurzbacher, Zurich, CH;
Hans Kocher, Udligenswil, CH;
Jan André Wurzbacher, Zurich, CH;
Inventio AG, Hergiswil, CH;
Abstract
Lift system () with a lower lift cage (K), an upper lift cage (K), at least one counterweight (), and support means (TA, TB) for supporting the lower and upper lift cages (K, K). The support means (TB) for supporting the lower lift cage (K) are led downwardly in the lift shaft () laterally along the upper lift cage (K). Drive means for driving the lower and upper lift cages (K, K) are present. Arranged at the upper lift cage (K) is a first incremental transmitter () which interacts with one of the support means (TB) and supplies information about a change in the spacing (D) between the lower and upper lift cages (K, K).