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:
Jan. 03, 1995
Filed:
Feb. 16, 1993
Michael Barten, Berlin, DE;
Mustapha Toutaoui, Berlin, DE;
Otis Elevator Company, Farmington, CT (US);
Abstract
In response to requested flight time, creep in distance, creep out distance and creep speed, a profile for opening or closing an elevator door is provided. The distance over which acceleration and deceleration must occur is the doorway distance less the distance which would be covered at the creep speed. Maximum speed is the acceleration distance over the acceleration time (1/4 of the requested flight time, to allow for jerk to both increase and decrease both acceleration and deceleration). Acceleration is the maximum speed over the acceleration time, and jerk is acceleration over the acceleration time. Actual flight time is calculated, taking into account maximum acceleration and velocity, and periods of constant acceleration and velocity, if any.