Thermostatically controlled pack hold-down assembly
CA 1237676 A · Owner: Champion Laboratories, Inc. · Inventors: Gaither, John D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A filter assembly comprises a housing a liquid, inlet in said housing, a liquid outlet in said housing a, filter pack in said housing, and valve means in said housing which is opened, for bypassing liquid about the filter pack when the liquid is cold and viscous and which is closed when the liquid is warmed and less viscous so that all liquid will pass through the filter pack. The liquid inlet and liquid outlet are each provided with one way check valves for controlling liquid flow into and out of the housing. A flow control orifice is provided in the liquid inlet to reduce housing pressure without affecting, flow of liquid through the filter pack and to reduce the possibility of leaks from …
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 7, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 7, 2005.
- 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.