Pump
CA 2073775 A1 · Owner: Reichmuth, Mathias · Inventors: Reichmuth, Mathias; Reichmuth, Mathias
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pump (10) has a pump housing (11) forming a cylindrical chamber (15), in which an eccentric (16) that can be rotary operated by means of a drive shaft. Said eccentric causes a hose (20) wound around a ring (25) to be squeezed shut on the housing inner wall (11') by means of a flexible ring (25) arranged, around said eccentric. A medium is conveyed peristaltically by rotating the eccentric (16). In addition the hose (20) is, continuously enclosed and enables discharge pressures ranging from 6 this pump (10) even at higher discharge pressures ranging from 6 to 10 (bar).
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 November 20, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 20, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 20, 2013.
- 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.