Liquid metering and transfer valve assembly
CA 1184788 A · Owner: Coulter Electronics, Inc. · Inventors: Cabrera, Pedro P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a hydromechanical speed gear for vehicles or other industrial applications consisting of three basic units, namely a unit comprising at least one planetary (or epicyclic) gear or differential group a variable displacement hydrostatic transmission unit formed by at least one hydraulic pump and one hydraulic motor, preferably of reversible type, and a mechanical unit of cogwheels equivalent to a conventional speed gear unit, the principal characteristics of this hydromechanical speed gear being that it has infinite gear ratios and has high efficiency or performance.
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 April 2, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 2, 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.