Bi-lobed sealing element and retainer
CA 2020602 C · Owner: Parker-Hannifin Corporation · Inventors: Jelinek, Jerry G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An elastomeric sealing device for sealing a fluid opening or passageway at the interface of two mateable parts comprises a bi-lobed elastomeric seal integrally molded on a relatively rigid retainer. The retainer is generally planar in construction with a peripheral load bearing portion that is clamped between the facing sealing surfaces of the mated parts and an inwardly, extending thinner flange portion which is imbedded in the molded bi-lobed seal. The bi-lobed seal is of unitary construction and has a first lobe which extends perpendicularly from one side of the retainer and is sized and shaped to be received in a recess or groove in the sealing surface of one of the mated parts. The …
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 July 6, 1990 and granted October 27, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 6, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 6, 2012.
- 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.