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:
Apr. 12, 1983
Filed:
Jul. 06, 1981
Frederick H Nowak, Southington, CT (US);
Otis Elevator Company, Farmington, CT (US);
Abstract
A multi-elevator system operable in response to a group controller (FIG. 1) operates in a first phase (FIG. 9) in which each car is selected in a sequence to be run in a first phase (FIG. 4) in which each car is commanded to run to a designated landing (FIGS. 5 and 6). When an attempt has been made to recover all cars (30, FIG. 9; 22, FIG. 8), a second attempt is made, if necessary (28, FIG. 9; 11, 13, 15, FIG. 8). Then, in a second phase, cars are selected on a priority basis in which the highest level are cars with firemen in them or cars not at a designated landing (8, FIG. 10). A second priority level includes cars designated as preferred by the customer (22, FIG. 10) and a third level includes any available car (29, FIG. 10). Any car not recovered is caused to become available (10, FIG. 3) for selection (8, FIG. 10) on a periodic basis, the priority level section automatically deselecting one of the service cars for operation so as to permit selecting the unrecovered car for operation.