Self-lubricating and self-cleansing bearings
CA 1290708 C · Owner: Hy-Tech Hydraulics, Inc. · Inventors: Major, Kenneth E.; Braunagel, David K.; Baker, John L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The lubricating system (1) comprises a casing (2) having a bore (3). At least one bearing (6) in the bore supports a rotatable shaft (4) which extends through the bearing and the bore. A pair of end seals (31,31') seal off the bore from the ambient. A pumper element (P) is mounted in the bore for rotation with the shaft and the pumper element when rotating with the shaft causes a lubricant to circulate between a lubricant reservoir (35) and the bearing. At least one arcuate channel (24) is preferably within the wall of the bore and the, pumper element is concentrically mounted on the shaft opposite to the channel.
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 October 15, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 15, 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.