Sludge collector method and drive with shared reel for taking up and paying out cables
CA 2176050 C · Owner: Hanson, Christopher Dale · Inventors: Meurer, Charles Lonnie; Hanson, Christopher Dale
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for simultaneously taking up and paying out first and second ends of respective first and second cables is provided for traversing a carriage in a clarifier basin. Each of the cables has the same active length. A reel has a cylindrical drum opposite ends, and a pair of cable retainers. One of the retainers is adjacent to one of the opposite ends and on a first diametric side of the drum. The other of the retainers is adjacent to the other of the opposite ends and on a second or opposite diametric side of the drum. The second diametric side is opposite to the first diametric side. In a method of the invention the first end of the first cable is secured to the one retainer. the drum …
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 May 8, 1996 and granted October 5, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 8, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 8, 2018.
- 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.