Vacuum hose storage and access apparatus for a central vacuum cleaning system
CA 2093715 A1 · Owner: Workhoven, Garry · Inventors: Duernichuk, Thel; Workhoven, Garry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vacuum hose storage and access apparatus for a central vacuum cleaning system is described, which includes a power unit. A 12 volt direct current retraction motor powered by the power unit is mounted on a base and has an output shaft. A gear reduction unit is provided having an input shaft and an output shaft. The input shaft is rotatably coupled to the output shaft of the motor. A clutch is disposed between the output shaft of the gear reduction unit and a vacuum hose reel. The clutch has an engaged position and a disengaged position. In the disengaged positioned the reel is freely rotatable thereby enabling vacuum hose to be freely pulled from the reel. In the engaged position the reel …
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 April 8, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 8, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 8, 2015.
- 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.