Differential pressure transmitter, a square root extractor device therefor, and methods of making the same
CA 1322875 C · Owner: Asbill, Clarence M. Iii · Inventors: Asbill, Clarence M. Iii
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
TITLE OF THE INVENTION:, A DIFFERENTIAL PRESSURE TRANSMITTER A SQUARE, ROOT EXTRACTOR DEVICE THEREFOR AND METHODS, OF MAKING THE SAME, ABSTRACT OF THE DISCLOSURE: A differential pressure transmitter, a pneumatically operated square root extracting device therefor, and methods of making the same are provided. The transmitter comprises a unit for producing an output pneumatic signal from a pneumatic source in relation to the air velocity pressure of air flowing in a passage, a unit that senses the difference between the total pressure and the static pressure of the air flowing in the passage, and a unit for extracting the square root of the air velocity pressure of the air from the pneumatic …
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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 October 12, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 12, 2010.
- 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
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.