Retainer gland for mechanical joint pipe
CA 1188718 A · Owner: Davis, Samuel H. · Inventors: Davis, Samuel H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a retainer gland for mechanical joint pipe and mechanical joint fittings. The gland includes a flat ring portion having a longitudinal axis with two substantially parallel faces perpendicular to the axis and an opening with a circular inner circumference. A circular rib portion extends generally axially from one face of the flat ring portion adjacent said inner circumference, the flat ring portion and the circular rib portion having a generally L-shaped radial cross section, wherein the retainer gland further comprises at least a first hinge arm extending generally axially from the other face of the flat ring portion and terminating in an outer end portion. …
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 June 11, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 11, 2002.
- 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.