Caster-lock with dual receivers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 2, 2008
Grant Date -
Jul 3, 2008
app pub date -
Dec 28, 2006
filing date -
Dec 28, 2006
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A locking system for stopping a shopping cart includes a caster that can be selectively disabled when the cart encounters an electronic barrier. The caster includes a brake that is mounted on the frame of the caster. Also mounted on the frame are two receivers for separately receiving different signals from an electronic barrier. Respective decoders on the frame decipher lock commands in the signals, and a controller selectively activates the brake to prevent further movement of the cart in response to the lock commands. The electronic barrier can include an underground loop antenna and an above-ground RF beacon.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully