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:
Jun. 18, 1996
Filed:
Jul. 15, 1994
Applicant:
Inventor:
John K Salmon, South Windsor, CT (US);
Assignee:
Otis Elevator Company, Farmington, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66B / ;
U.S. Cl.
CPC ...
187249 ; 187254 ; 187266 ; 187412 ;
Abstract
An elevator is provided comprising a first car, a second car, and a counterweight for travel within a hoistway. A plurality of ropes connect the first and second cars to the counterweight for travel within the hoistway. A machine is provided for driving the cars and counterweight within the hoistway. The plurality of ropes are arranged to cause the second car to travel 1/N of the distance, at 1/N of the speed, of the first car when the machine is driving the cars.