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. 13, 1995
Filed:
Jun. 29, 1994
Applicant:
Inventors:
Hans-Kilian J Spielbauer, Berlin, DE;
Michael Peters, Berlin, DE;
Assignee:
Otis Elevator Company, Farmington, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66B / ;
U.S. Cl.
CPC ...
187292 ; 187393 ;
Abstract
A constant bias velocity is dictated from a profile generator, while a torque value sent to an elevator drive is increased linearly until motion is detected. Then, the torque value is frozen. A normal velocity profile is started and coupled without discontinuity to the prior bias velocity dictation. In response to activation of an elevator loadweighing switch, an initial torque value is provided without boundary values stored in a table. Such static friction keeps an elevator car motionless when an elevator brake is lifted.