Jet units for whirlpool-bath systems
CA 2059646 C · Owner: Butler, David Simon Ormond · Inventors: Gape, Alan Frederick; Butler, David Simon Ormond
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The fixed-direction jet units (1) of a whirlpool-bath system (Figures 1 and 2) each include a nozzle (18) for supplying water under pressure from a tube-section (17) to an outlet (12) across an air gap (20) within a chamber (19). The unit (1) is clamped to the bath-wall (14) between a flange (16) of the outlet (12) and the unit housing (15). Issue of water from the nozzle (18) across the gap (20) into the axiallyaligned stem (13) of the outlet (12), draws air into the chamber. (19) from an inlet pipe (21) that is coupled to a distribution manifold (7) of an air-supply controller (9) (Figures 1 and 2) by an individual supply tube (8). A circumferential skirt (22) projects backwardly from the …
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 2, 1990 and granted June 5, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 2, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 2, 2012.
- 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.