Centrifugal pump having semi-axial diffusion and dual discharge for hydromassage bathtub units
CA 1201623 A · Owner: Marley-Wylain Company (The) · Inventors: Simpson, Robert Herbert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, A centrifugal pump for use in hydromassage bathtub units is provided that is compact self-, draining and self-venting, and which complies with all applicable governmental health and safety regulations. The pump includes a centered inlet port and a pair of opposed upper and lower discharge ports. The pump impeller and diffuser plate assembly provide for semi-axial diffusion of fluid within the pump, thereby reducing the overall size of the pump. The pump is self-drained through the lower discharge port when not in operation and, air trapped within the pump is vented through the upper discharge port.
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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 11, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 11, 2003.
- 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.