Loop pump
CA 1301544 C · Owner: Karlsson, Per-Olof · Inventors: Karlsson, Per-Olof
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a loop pump (1) for pumping liquid, i.e. a pump comprising a pipe (3) or the like embodied in a number of turns/loops, said pipe being rotated by a drive source to introduce alternately air and liquid into an inlet (4) and pumping the liquid to a drawing place by way of a conduit (6) or the like rotatably connected with the pipe. The drive source consists a of a means, e.g. a propeller (8) ab-, sorbing the flow energy of the liquid. A floating body (10) gives the pump the desired floatability on the liquid and the pump comprises means (11) for anchoring it relative to the sourroundings of the flowing liquid. (Fig. 1)
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
- Granted May 26, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 26, 2009.
- 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.