Method and apparatus for purging water from a whirlpool system
CA 2446202 A1 · Owner: Gloodt, Cary E. · Inventors: Gloodt, Cary E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus (10A) for removing standing water from the hydraulic plumbing system that circulates water in a whirlpool bath. The apparatus includes a pneumatic pump (50A) fluidly coupled to the whirlpool hydraulic plumbing system of a whirlpool bathtub (20A), such that air pressure from the pneumatic pump can be used to flush standing water out of the hydraulic plumbing system after each use. A pneumatic plumbing system connecting the pneumatic pump to the hydraulic plumbing system is positioned substantially above maximum water level allowed in the tub and also substantially above the hydraulic plumbing system.
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 3, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 3, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 3, 2024.
- 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.