Universal ground clamp
CA 1237493 A · Owner: Franks, George J. Jr. · Inventors: Franks, George J. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A universal ground clamp having a clamping strap formed of a corrosive-resisting copper or copper alloy having a series of uniformly sized and spaced apertures to facilitate the installation of the clamp onto a wide range of pipe, rod or conduit diameters. A brass stud through which the clamping strap is secured includes a, terminal portion adapted to accommodate and have secured therein a terminated ground wire. A pair of curved plates supported upon the stud are used to form a tight clamping action of the copper strap about the pipe, rod or conduit to be grounded, without subjecting the strap to localized stresses or tearing but, permitting the strap to tightly encircle the pipe rod, or …
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 May 31, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 31, 2005.
- 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.