Rotatable hose coupling
CA 2360622 A1 · Owner: Stoltz, Wernher J. · Inventors: Stoltz, Wernher J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A rotatable hose coupling is provided for use with a pool cleaner particularly of the type powered by a suction or vacuum source via a flexible vacuum hose or the like connected to the suction side of conventional pool water filtration equipment, wherein the rotatable hose coupling is mounted inline along the vacuum hose and responds to cyclic pressure differentials to index the hose through a rotational increment each time the filtration equipment is turned on and off. The rotatable hose coupling comprises a tubular plunger having one end received axially and slidably within a cam housing defining an axially opposed and spaced-apart pair of cam surfaces. At least one radially …
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 November 7, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 7, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 7, 2022.
- 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.