Reversible feeder system
CA 1237992 A · Owner: Lubriquip - Houdaille, Inc. · Inventors: Callahan, James J.; Powell, John H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cyclical lubricant feeder utilizing series spool valves to dispense measured quantities of lubricant to dispensing outlets (120,121) from a common feed source (11) with a plurality of the spool valves arranged in series in valve block assemblies (15) which in turn are in series with one another whereby dispensing through the outlet (120,121) for each spool valve in a block assembly (15) is in progression with the other outlets from the spool valves (120,121) in the valve block assembly (15) is provided with a control valve (124) controlling inlet and outlet flow to the valve block assembly bypassing flow from the inlet (140) to the outlet (141) when all of the valves in the block have …
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 June 14, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 14, 2005.
- 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.