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:
Jan. 30, 1996
Filed:
Jan. 26, 1994
Applicant:
Inventors:
David M Hughes, New Britain, CT (US);
Gary Meguerdichian, Farmington, CT (US);
Assignee:
Otis Elevator Company, Farmington, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66B / ;
U.S. Cl.
CPC ...
187392 ; 187414 ; 2504951 ;
Abstract
A system and method for determining the availability of an elevator car for response to hall calls includes a plurality of infrared sensors disposed to monitor the presence of an object within an elevator car. The cross-sectional area occupied by an object, or objects, within an elevator car is determined by the number of sensors generating output signals based upon reflections of transmitted radiation from such an object. The system monitors the cross-sectional area availability of the elevator car and categorizes the car as to its availability for responding to a hall call.