Universal seal or packing gland
CA 2056276 C · Owner: Willbrant, Margaret B. · Inventors: Azibert, Henri V.; Attenasio, Ann T.; Willbrant, Margaret B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A universal gland having a central opening for mounting coaxially about a machine shaft and adapted for mounting to a machine housing through, which the shaft extends, by a plurality of bolts at bolt hole positions in the housing, characterized in that the gland comprises a gland body extending radially at the bolt hole positions s distance less than the minimum radial distance of the bolt hole positions from the axis of the shaft the gland further comprises a plurality of bolt mounting tabs extending radially beyond the periphery of the gland body a distance at least to the bolt hole positions the tabs are angularly adjustable about the gland body; and the gland body comprises a mounting …
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 November 27, 1991 and granted August 21, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 27, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 27, 2013.
- 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.