Thermal sensing system
CA 1307944 C · Owner: Matsushita Electric Industrial Co. Ltd. · Inventors: Tajima, Akio; Ishii, Katsumi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A temperature sensor, e.g. a thermistor (24 37, 41, 46, 50', 57) is provided in a hollow space in cupshaped shell (22, 36, 39, 42, 50, 54) of a size e.g. 30, mm diameter and 15 mm depth, at a position of 1/3 heights (i.e. 5 mm) of the depth from the bottom of the shell the, shall having wide opening (23, 33 43, 47, 55) at its top, part, and the temperature sensor is heated by feeding a controlled current to itself or to a heater provided at proximity thereto, the temperature sensor senses environmental condition in the similar manner to human sensation, taking account of air temperature air flow and, radiant heat from nearby matter such as wall or ceiling; thereby enabling comfortable air …
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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 September 29, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 29, 2009.
- 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.