Optical vend-sensing system for control of vending machine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 20, 2007
Grant Date -
Oct 14, 2004
app pub date -
May 5, 2004
filing date -
Apr 29, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
For ensuring that a vending machine motor will continue to operate until a product has descended through a vending space or an established time interval has elapsed, an optical beam is established across the vend space through which a product must drop. A change in beam intensity is detected. By preference infra red light is emitted at one focal point of an elliptical reflector, and detected at the other focal point. The light is emitted in pulses in the preferred embodiment, and the optical sensing system has automated calibration and error detecting functions.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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