Cooling apparatus
CA 1099933 A · Owner: Blazer Industries, Inc. · Inventors: Blazer, Benjamin V.; Levinson, Michael M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Air conditioning apparatus includes at least one cascaded array of a water cooling coil and an evaporator between air return and supply ports. The evaporator is included in a closed direct expansion cooling subsystem having a compressor and a water cooled condenser continuously receiving all of the circulated water coolant. Air cooling is first effected by the water cooling coil (assuming sufficiently low circulating water temperature) and, the remaining heat load, if any, accommodated by the evaporator. Pressure regulating apparatus and the like is employed to vary the active surface area of the condenser and maintain sufficient evaporator pressure to accommodate the wide dynamic range of …
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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 28, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 28, 1998.
- 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.