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:
Nov. 07, 1978
Filed:
Jan. 21, 1977
John Charles Doane, Somerset, NJ (US);
Joseph Bittar, Brooklyn, NY (US);
Otis Elevator Company, New York, NY (US);
Abstract
An elevator control system having a car processor, its associated car processor memory and car logic circuitry individually associated with each car to apply a first set of car control signals to the car associated control equipment to cause it to operate the car in a particular manner and having a group processor, its associated group memory and group logic circuitry common to each of the cars receiving hall call signals and selected first car control signals and in response thereto applying group control signals to selected car processor circuitry which operates in response thereto to apply second car control signals to its associated car control equipment to cause it to operate its associated car as a member of a supervised group. Whenever the group processor is to receive a first car control signal from or is to transmit a group control signal to the selected car processor circuitry, the group logic circuitry operates to cause the group processor and the selected car processor to suspend their sequence of operations and to cause the signal transfer therebetween.