| US 7,601,054 B2 | ||
| Zone control of space conditioning system with varied uses | ||
| Rick Bagwell, Scottsville, Ky. (US); and Andrey Livchak, Bowling Green, Ky. (US) | ||
| Assigned to Oy Halton Group Ltd., (Finland) | ||
| Filed on Nov. 01, 2006, as Appl. No. 11/555,410. | ||
| Application 11/555410 is a continuation of application No. 10/638754, filed on Aug. 11, 2003, granted, now 7,147,168. | ||
| Claims priority of provisional application 60/402398, filed on Aug. 09, 2002. | ||
| Prior Publication US 2007/0068509 A1, Mar. 29, 2007 | ||
| Int. Cl. B08B 15/00 (2006.01) | ||
| U.S. Cl. 454—49 [454/56; 454/58; 454/67] | 12 Claims |
| 1. A method for controlling an exhaust flow rate of an exhaust hood, comprising:
generating a signal responsive to transient movement of ambient air at a location adjacent and outside of an exhaust hood
recess, the signal including an indication of a peak velocity value over a sliding, predefined interval of velocity of air,
the maximum value being reset periodically; and
controlling an exhaust flow rate of said exhaust hood responsively to the signal.
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