Quick-on torque-override filler neck cap
CA 2339980 A1 · Owner: Stant Manufacturing Inc. · Inventors: Harris, Robert S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cap (10) includes a handle (12), torque-transmission ring (16) a driver , (14) coupled to handle (10) and ring (16) and a closure member (20) adapted , to close a tank filler neck (42). A connector (18) couples ring (16) to closure member (20) to establish a torque-limited connection (26) during cap installation and a direct-drive connection (28) during cap removal. An axial spring (22) coupled to handle (12) and ring (16) yieldably biases ring (16) toward closure member (20) to maintain the torque-limited connection (26). A rotary spring (24) coupled to handle (12) and ring (16) rotates closure member (20) relative to handle (12) to a reset position upon removal of cap (10) from …
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 October 6, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 6, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 6, 2021.
- 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.