Dishwasher with power filtered rinse
CA 1297384 C · Owner: Ranft, Paul H. · Inventors: Ranft, Paul H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dishwasher has a washing chamber having at the top a rotatable wash arm which is supplied with filtered fluid from the dishwasher pump to prevent redeposition of soil particles on the dishes. In one embodiment the, fluid is supplied when the unit is in the recirculate or wash mode at all times by bypassing a certain amount of the pump output through an external filter to the third level wash arm. Fluid is also supplied during the drain cycle as a bypass from the drain outlet. In another embodiment, the fluid is supplied only during the drain portion of the cycle.
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
- Granted March 17, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 17, 2009.
- 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.