Roll-over mechanism for a pressure release valve
CA 2358546 A1 · Owner: Denby, James Edward · Inventors: Denby, James Edward
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A rollover mechanism (3) for a pressure valve (1) is disclosed which is ideally adapted for use on mobile petrol tankers and other tankers for volatile liquids. The valve (1) comprises a valve seat (32) and a sealing means (18) which can be urged against the valve seat (32) to form a seal and prevent any fluid within the tanker from escaping through the valve (1) in the event of a rollover. Such valves (1) allow for pressure release therethrough under normal operating circumstances as fluid within the tanker often evaporates and pressure within said tanker can increase. The inventive valve (1) comprises a pendulum (10) mounted at an intermediate point along its length and having a …
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 January 6, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 6, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 6, 2022.
- 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.