Exhaust coupling
CA 2089066 A1 · Owner: Sweeny, Henry Dermot · Inventors: Sweeny, Henry Dermot
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A coupler is provided for connecting a vehicle exhaust pipe to an exhaust extractor hose. The coupler (30 114) has a housing (32, 116) with an inlet end (34 124) and an outlet end (36, 118). A , curtain wall assembly (68 122) is provided at the inlet end to, sealingly receive the exhaust pipe. The curtain wall assembly comprises at least a pair of facially abutting curtain wall members (70, 126) defining adjacent mutually offset flexible flap members (78, 140) that deflect and seal around the exhaust pipe. A peripheral clamping ring (80, 128) clamps the curtain wall members together. The housing is provided with air passageway holes (52 145), and a slider member (56, 144) having air …
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 August 8, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 8, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 8, 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.