Elastomer seal structure
CA 1324624 C · Owner: Cameron Iron Works Usa, Inc. · Inventors: Saunders, Brian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved annular seal including a resilient seal ring, a first follower, a second follower being threadedly connected to the first follower, threads on the first follower for setting movement of the followers a shear, pin for releasably securing the second follower to the first follower, the first follower having a lower rim for engaging the resilient seal ring, the second follower having a lower extension for exerting a loading force on the resilient seal ring, the area of engagement of the first follower with the seal ring being substantially larger than the area of the second seal ring exerting the seal ring loading force. In one form the second follower includes a lower rim extending …
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 November 23, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 23, 2010.
- 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.