Linear peristaltic pump
CA 2278239 C · Owner: Niagara Pump Corporation · Inventors: Vogt, Douglas N.; Phallen, Iver J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A liquid pumping apparatus for pumping liquids more specifically a linear , peristaltic pump apparatus. The apparatus consists of a high durometer compressible elastomeric liquid flow tube (12) an infeed valve assembly (26), an outfeed valve assembly (38) an extensible and retractable actuator anvil (34) having a round surface which engages the flow tube (12) at all times an , opposed anvil (24.1) having a round surface in engagement with the flow tube at all times, the flow tube being held between the anvils (34 24.1) in a , slightly compressed state when the anvil (34) is retracted and a control , assembly (100) for causing the movable anvil to be sequentially extended and retracted …
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 January 16, 1998 and granted December 23, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 16, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 16, 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.