Variable capacity compressor
CA 1309698 C · Owner: Taguti, Tatuhisa · Inventors: Taguti, Tatuhisa; Maruyama, Teruo; Abe, Yoshikazu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a variable capacity compressor having a capacity control mechanism so as to keep the suction pressure of the compressor constant by detecting the suction pressure, plural return ports, a return passage and an exit are provided for bypassing refrigerant gas from a volume-decrease-step space in a cylinder compartment to a volume-increase-step space. A guide passage wherein a slider slides by the pressure of the refrigerant gas is provided for controlling the amount of bypassing gas whereby it is possible to, control capacity correctly and stably.
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 November 3, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 3, 2009.
- 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.