Emergency vent for use on a tank for storing or transporting fuel or the like
CA 1322982 C · Owner: Clemmer Industries Limited · Inventors: Meyers, Arnold G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An emergency vent for use on a tank for storing or transporting fuel or the like has a housing with a cover thereon. The housing has an upper portion and a lower portion with a screw thread on the outer surface of the lower portion for affixing the vent to a tank opening. Alternatively, the lower portion can have a plain end for welding to the tank. The upper portion has a larger diameter than the lower portion and contains a support having a passageway with a bolt extending through the passageway and being connected to the cover. The bolt has a head which is too large to pass through the passageway. The cover has a circular groove on an inner surface thereof the, groove being sized so that …
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 12, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 12, 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.