Pump with removable cartridges
CA 1293648 C · Owner: Cole-Parmer Instrument Company · Inventors: Beck, James Paul; Soderquist, Charles Elmer
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A peristaltic pump having a plurality of removable cartridges, each containing a length of tubing, and each having means for adjusting occlusion comprising a linearly displaceable occlusion bed. Tubing retainers on each cartridge stabilize the tubing segments to constrain them against longitudinal displacement during pumping. Means are provided to enable visual determination of occlusion adjustment through the top of each cartridge. Each of the cartridges is reversible, and is readily installed on the pump frame and retained thereon by a snap-lock mechanism.
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 December 31, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 31, 2008.
- 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.