Drive and support for mixer drum
CA 2016317 C · Owner: Mcneilus Truck And Manufacturing, Inc. · Inventors: Strehlow, Robert W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Certain improvements are provided to the mechanical aspects of a tilt mixer which include a novel boggy adjustable roller, arrangement on the drum track which produces an improved distribution of the stresses produced by the extremely heavy rotating drum which reduces the wear on both individual rollers and on the track. An unique dual staggered tooth gear drive is provided having two spaced sets of teeth each addressed by a pair of motor shaft mounted drive gears on each of a pair of flanking motors in which the teeth of the two sets are staggered or offset by one-half of the gear pitch. This produces a tighter quieter, drive wihch has been found to reduce gear wear. In addition a, unique …
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, 1990 and granted October 26, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 8, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 8, 2012.
- 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.