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:
Aug. 07, 1984
Filed:
Aug. 19, 1982
Richard H Ludwig, West Caldwell, NJ (US);
Linus R Dirnberger, Randolph, NJ (US);
Alan L Husson, Hackettstown, NJ (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
An elevator system in which a count is maintained to enable a car to be leveled in the correct travel direction in the event the car stops outside the landing zone of a target floor. The count is incremented each time the advanced car position changes floors, and it is decremented each time the car is level with a floor during the run. If the car lands outside the landing zone, a zero count indicates the car overshot the floor, while a non-zero count indicates undershoot. The count, along with the travel direction of the run, which is stored in memory, thus determines the leveling direction to level the car with the target floor.