Multi-range hydromechanical transmission for vehicles
CA 2294495 A1 · Owner: General Dynamics Land Systems, Inc. · Inventors: Walter, Glenn Bayne
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hydromechanical transmission (2) receives split power inputs from a vehicle engine (6), one split input driving a hydrostatic power unit (4) and the other split input driving a mechanical power unit (8). The infinitely variable hydrostatic power output (21) is combined in the mechanical power unit (8) with multiple ratios of its split input power to achieve infinitely variable ratios of hydromechanical output power (10) for smoothly propelling a vehicle from rest through multiple transmission ranges to maximum speed with , synchronous shifting between ranges.
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 April 7, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 7, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 7, 2021.
- 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.