Safety cap for valve on high-pressure cylinder
CA 1281667 C · Owner: Griffin, Beacher C. · Inventors: Griffin, Beacher C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A safety cap for protecting against damage and tampering the shut-off valve of a high-pressure gas cylinder. The safety cap has a female threaded base bracket which is engaged with the malethreaded neck ring of the gas cylinder. Hinges carried by the base bracket and symmetrical shield halves pivotally mount the shield halves. Positive-lock hinge clamps maintain the shield halves in abutting closed position to protect the shut-off valve. The clamps can be unclamped and the shield halves fully opened to provide full and unrestricted access to the shut-off valve.
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 March 19, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 19, 2008.
- 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.