Aerodynamic structure for semi-trailer trucks
CA 1284807 C · Owner: Haegert, Fritz W. · Inventors: Haegert, Fritz W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A highway tractor cab is provided with a rigid aerodynamic structure, which may also be on the cab roof which extends the sides of the cab and/or roof deflector beyond the rear wall of the cab toward a semi-trailer articulatedly connected to the tractor. A flexible side extension member, which is deformable on contact with the trailer but has a high degree of shape retention in the absence of such contact, is attached to the rear edge of the rigid structure and has an outer surface disposed to form an aerodynamically efficient continuation of the outer surface of the rigid structure. Preferably the, flexible side extension is wedge-shaped and is attached by a T-in-slot connection to a …
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 11, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 11, 2008.
- 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.