Cleaning and sanitizing system for frozen dessert mixing machine
CA 2042454 C · Owner: Heinhold, Duane H. · Inventors: Heinhold, Kenneth E.; Heinhold, Duane H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improvements are provided in machines for processing frozen comestibles of the type in which a frozen comestible is placed in a mixing cup and the mixing cup is moved toward en auger which mixes the frozen comestible into a smooth soft material. The improvements comprise at least one orifice in a sidewall of the mixing cone and a system for delivering a cleaning and sanitizing solution through the orifice to spray the solution into the interior of the mixing cone. As the mixing cone ie moved up and dawn the, cleaning and sanitizing solution is sprayed into the mixing cone and impinges on the auger to clean and sanitize the auger and the interior of the mixing cone. The system for delivering …
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 May 13, 1991 and granted August 27, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 13, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 13, 2013.
- 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.