Self-emptying container
CA 1306703 C · Owner: Wishart, Bruce William · Inventors: Wishart, Bruce William; Abram, David Anthony Shaw
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The self-emptying container has relatively moveable parts (10, 11, 40, 41) normally secured together by a latch mechanism. In one embodiment, the container has an upright body (10) and a pivotal base (11). In an other embodiment the body is a tipping skip or hopper (40) on a pallet base (41). The latch mechanism (19 49), comprises a fore and aft flat bar (22 52) pivoted at, one end. The other end locates below the horizontal limb (29, 59) of an L shaped latch member (24 54), which is lifted by the flat bar (22 52) when an upward, pressure is applied to-the bar. That is done via lift apparatus such as a fork lift truck. The container is raised over a surface (S) and lowered onto that surface …
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 August 25, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 25, 2009.
- 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.