Linear compressor
CA 2426385 A1 · Owner: Fisher & Paykel Appliances Limited · Inventors: Mcgill, Ian Campbell; Duncan, Gerald David; Patel, Upesh
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A linear compressor comprising a cylinder part (10) including a cylinder bore (71) and a piston (4) disposed in, and slidable within the bore (71). A main spring (15) connects the cylinder part (10) directly of indirectly with the piston (4). A connecting rod (47) connects between the main spring (15) and the piston (4). A stator (5) has an air gap through which the connecting rod (47) passes. At least one armature pole (2) is located along the connecting rod (47).
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 October 17, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 17, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 17, 2022.
- 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.