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. 19, 1996
Filed:
May. 26, 1994
Ram Shalvi, Hong Kong, HK;
Christopher A Kleinau, Hong Kong, HK;
Solar Wide Industries, Ltd., Kwai Chung, HK;
Abstract
A supermarket trolley monitoring system is provided for detecting shopping items on a lower shelf of the trolley as the trolley moves through a check-out station. Three transmitter/receivers are provided. The first and third at level A respond to light reflected by a panel 36 on the side of the trolley. The system is turned on when the panel 36 passes the first transmitter/receiver and off when the panel 36 passes the third transmitter/receiver. The second transmitter/receiver is mounted above A and if any object is detected while the system is ON, by reflection of the beam from the object, a warning is provided to alert a check-out assistant and/or a shopper that an item is present on the lower trolley shelf which may not have been entered in a till.