Mobile machine frame and suspension
CA 1056880 A · Owner: Miller Formless Co. · Inventors: Miller, David J.; Miller, Charles P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A construction machine is disclosed having a main frame that is supported by means of three or four vertically adjustable suspension points from a pair of walking beams located on opposite sides of the main frame. Each walking beam has a vertical steering axis at each of its ends connected to a bogey-mounted self-propelled ground engagement means in the form of a wheel or endless track. In one embodiment one of the walking beams is connected to a side of the main frame by two spaced vertically adjustable suspension means that attach to the beam through pivotal bogey-mounts. One of these adjustable suspension means is pivotally mounted to the frame, while the other is fixed to the frame. The …
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 19, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 19, 1996.
- 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.