Contact prevention system for a backhoe
CA 2102162 C · Owner: Nishi, Eiji · Inventors: Miura, Keisuke; Nishi, Eiji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A backhoe having a swivel deck supporting a driver's section and a hydraulically operable boom assembly. This backhoe includes a detecting device for detecting a position, direction of movement and velocity of movement of a bucket relative to the driver's section and a control device, for controlling the boom assembly based on detection values provided by the detecting device. The control device has a function to prohibit operation of the bucket when the bucket moves inwardly of a danger plane A1 or A2 disposed at a predetermined distance. Outwardly of the driver's section. The control device establishes a caution plane C1 or C2 disposed at a predetermined distance outwardly of the danger …
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 November 1, 1993 and granted August 25, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 1, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 1, 2015.
- 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.