Pool chemical dispenser
CA 1330549 C · Owner: Alexander, Roy P. · Inventors: Zetena, Christopher M.; Alexander, Roy P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved chemical feeder (10) employing periodic partial immersion in a forced circulation system (12,16) is provided having a soluble chemical chamber (20), a dissolving chamber (21) into which the soluble chemical chamber (20) extends and a discharge chamber (22) in fluid flow communication with the dissolving chamber (21) to selectively receive chemically treated water from the dissolving chamber (21) and discharge it into a flow loop (11,17) connected to the forced circulation system (12,16). (DRAWING FIGURE 6)
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 July 5, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 5, 2011.
- 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.