High compression scroll element for scroll-type machines
CA 1279620 C · Owner: Copeland Corporation · Inventors: Griffith, Russell William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is disclosed a scroll-type machine specifically suited for use as a gaseous fluid compressor. The machine achieves improved (i.e. greater) volume/pressure ratio characteristics by causing axial compression of the fluid in addition to the conventional radial compressor thereof. Several scroll wrap profiles are also disclosed.
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 January 29, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 29, 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.