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. 04, 1978
Filed:
Apr. 24, 1974
Milton Sackin, Pittsburgh, PA (US);
George T Hummert, Oakmont, PA (US);
Westinghouse Electric Corporation, Pittsburgh, PA (US);
Abstract
A new and improved elevator system, and method of directing a plurality of elevator cars to serve floor calls in an elevator system. Service is provided for floor calls which cannot be allocated to a suitably conditioned car already busy serving calls, by specifically assigning non-busy or available cars to serve such calls. The floor calls are each timed from registration and when their registration time reaches a first value the strategy for assigning available cars to non-allocated calls is changed. The timing of a call continues following the reaching of the first value, until the call reaches a second timed value. The strategy for assigning available cars to non-allocated calls is changed again, in response to a call registered for the second predetermined period of time.