Arrangement of pumps or similar machines
CA 2045558 A1 · Owner: 3H Invent A/S · Inventors: Henriksen, Leif Dag
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A compressor or similar machine comprising a first housing component (23). Together with a pair of mutually opposite end members (24, 25) and one or more pairs of mutually diametrically opposite partition walls (23a, 23b) projecting radially inwards a first hollow space (22) is defined which surrounds a rocker piston member (10) with associated hub portion (11) and piston wings (12 13) , projecting radially outwards from the latter. The compressor comprises furthermore a second housing component (27) which together, with a pair of end members (28 29) define a second hollow space, (26) which surrounds a crank arm mechanism (19) for oscillatory movement of the rocker piston member (10) in …
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 February 1, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 1, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 1, 2012.
- 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.