Conveyor belt stripper
CA 2076456 A1 · Owner: Martin Engineering Company · Inventors: Veenhof, Willem D.; Veenhof, Willem D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, A conveyor belt cleaning assembly (10) includes an array of stripper blocks (24) which are coupled to a rigid crossbar (22) by resilient connecting arms (26). The resilient connecting arms are characterized by high compressive strength, but exhibit a structural collapsing response to off center deflection forces which exceed a predetermined load level. The collapsed connecting arms thus provide a reduction in length of the stripper assembly in response to a belt reversing condition. One side (26A) of each connecting arm has the ability to collapse in response to a relatively low deflection force and the other side (26B) has the ability to deflect and withstand substantial …
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 August 20, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 20, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 20, 2014.
- 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.