Sealing element for dry running systems and the use of a sealing element of this kind
CA 2292596 A1 · Owner: Feistel, Norbert · Inventors: Feistel, Norbert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a sealing element for dry-running systems. Said sealing element has a segmented sealing ring (2) comprising at least two ring segments (21) arranged next to each other in the peripheral direction of said sealing ring. When the sealing ring (2) is assembled two adjacent ring , segments (21) meet along an intersection (22) said intersection forming an , intersecting angle (.alpha.) with a tangent (23) on the inner cover surface (24) of the sealing ring (2), said angle being different from 90~. The sealing ring has an axial height (H1) of no more than 5.5 mm especially of between 2 , mm and 4.5 mm.
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 June 2, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 2, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 2, 2019.
- 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.