Self-steering and retractable axle assembly
CA 1182488 A · Owner: Mcdaniel, Thomas I. · Inventors: Mcdaniel, Thomas I.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A semi-trailer construction including forward coupling structure for universal coupling and support from a towing vehicle a rear portion from, which wheeled running gear is supported and an intermediate portion dependingly supporting supplemental wheeled running gear is provided. The supplemental wheeled running gear includes a mounting plate supported beneath the semitrailer frame for oscillation relative thereto about a vertical axis and horizontal shifting relative to the frame along a predetermined path extending through the axis of oscillation of the mounting plate relative to the frame. The mounting plate supports a transverse axle assembly therefrom having support wheels journaled …
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 February 12, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 12, 2002.
- 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.