Hose cross over device
CA 2102388 A1 · Owner: Doknjas, Michael Joseph · Inventors: Doknjas, Michael Joseph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The device relies on two manifolds. One divides the water flow into several smaller diameter hoses that lay parallel on the ground surface. Theother collects the water from the smaller diameter hoses. These manifolds are constructed from material which withstands both internal water pressure and the external force of a heavy vehicle inadvertently crossing over it. Water flow would not be compromised while in these manifolds. The small diameter high pressure hoses have a total sum flow capacity greater than the input/output connections. A greater friction loss is experienced with smaller diameter hoses and with vehicles compressing some hoses when crossing over. This flow reduction is …
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 3, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 3, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 3, 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.