Piston engine and cryogenic cooler provided with such a piston engine
CA 1324541 C · Owner: Den Heijer, Ronald · Inventors: Dijksman, Johan F.; Overes, Theodorus F.E.M.; Meesterburrie, Adrianus H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Piston engine and cryogenic cooler provided with such a piston engine A piston engine having a piston (13) journalled in radial direction with respect to the direction of movement. The rotation free piston (13) is centered by means of two pairs of dynamic groove bearings (41, 43), (47, 49) with respect to a cylindrical axis (39). The piston engine is particularly suitable for use in cryogenic coolers. Fig. 1
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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 November 23, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 23, 2010.
- 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.