Lube oil ring pump
CA 1237679 A · Owner: Ingersoll-Dresser Pump Company · Inventors: Erickson, John W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A lubrication system for moveable machine parts within a housing have a sump containing a fluid and a rotatable shaft comprising a ring eccentrically encircling and being frictionally rotated by shaft ring being at least partially immersed in sump fluid to carry fluid during rotation for machine parts a, increase the fluid carrying capacity of ring fins, commencing from each outer edge and extending partially inwardly along the ring width towards each other thereby forming an annular space between fins and ring, conduit means having an inlet located within annular space for receiving fluid carried in annular space and delivering fluid to moveable machine parts and first and second abutments …
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 7, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 7, 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.
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.