Equipment for monitoring the space in front of escalators and moving walkways by high-frequency sensors
CA 2489654 C · Owner: Blondiau, Dirk · Inventors: Blondiau, Dirk; Stoiber, Gerhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In this equipment for monitoring the space in front of escalators (1) for the control of the drive sensors (12) are arranged in handrail inlet caps (11) of the balustrades (3). Each sensor consists of a transmitter (15) and a receiver (16) and operates with high-frequency waves. The sensors monitor the access to the escalator in a specific region (13) in front of the entry to the escalator for example the region of the entrance plate (14). On walking into the monitoring region of a sensor the high-frequency waves emitted by the transmitter are reflected by the person or object and picked up by the associated receiver and the drive switched on.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed December 7, 2004 and granted May 22, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 7, 2024.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.