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:
Mar. 30, 1993
Filed:
Apr. 07, 1992
Applicant:
Inventor:
Nobuyuki Matsui, Ichikawa, JP;
Assignee:
Kajima Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66B / ;
U.S. Cl.
CPC ...
187 16 ; 187 15 ; 187 17 ;
Abstract
The present invention provides an elevator system for transferring a large number of passengers at a high speed and for operating elevators to stop at each floor or as an express for passing floors. An ascending passage and a descending passage are sectionally formed in an elevator shaft having an upper turning portion, a fixed portion and a lower turning portion, respectively. Both the ascending and descending shafts are provided with a local line, a passing line and a sliding area. Switch frames for switching the line and the area are provided at a plurality of locations and a linear motor drive mechanism is provided on the cages and a center core of the elevator shaft.