Winding device, particulary for winding up fire hoses
CA 2316846 A1 · Owner: Risa, Bjorn Gunnar · Inventors: Risa, Tor Einar; Risa, Bjorn Gunnar
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A winding device for fire hoses (40, 42) loading straps, etc. comprises a , freely rotatably mounted sleeve-shaped coil (12) having a longitudinal cavity (36) which, circumferentially, is defined between two clamp faces (14a 14b). , Within the cavity (36) is disposed a clamp means (34) firmly connected to a crank device (26', 26, 24, 32) and pivotal from a first position resting , against a first clamp face (14a) to a second position, resting against a second clamp face (14b). The clamp means (34) is a straight rod-shaped , element connected to the crank shaft (24) through a lateral crank arm (32) outside the inner cavity (12') of the coil (12). A starting portion of a fire hose, e.g. …
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 December 15, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 15, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 15, 2020.
- 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.