Patent Yard Sign in
Canadian application, no grantCanada

Variable flow reducing valve and gradual control valve distribution system for a compressed air injection engine operating on mono or multi energy and other engines or compressors

CA 2486227 A1 · Owner: Negre, Guy · Inventors: Negre, Guy; Negre, Cyril

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

The invention relates to a variable flow reducing valve and distribution system for compressed air injection engines comprising a high-pressure , compressed air tank and a buffer capacity and operating on mono or dual energy with dual or triple supply mode. Said invention also comprises a system for controlling the stroke of the piston which can be used to stop said piston at the dead centre. Moreover, the air supply in the final use buffer capacity and the supply to the cylinders are ensured by pilot valves. The cams of the aforementioned pilot valves, which are used to control the rocker arm rods are positioned directly on the flanges of the crankshaft (14) and each rocker arm …

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 April 22, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 22, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 22, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 22, 2003
GrantedNo grant recorded
Term endedApril 22, 2023
Patent numberCA 2486227 A1
Classification (IPC)F01B1/08 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedApril 22, 2003Term endedApril 22, 2023

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.