An Electronically-Controlled Register vent (ECRV) that can be easily installed by a homeowner or general handyman is disclosed. The ECRV can be used to convert a non-zoned HVAC system into a zoned system. The ECRV can also be used in connection with a conventional zoned HVAC system to provide additional...http://www.google.fr/patents/US20070119958?utm_source=gb-gplus-shareBrevet US20070119958 - ELECTRONICALLY-CONTROLLED REGISTER VENT FOR ZONE HEATING AND COOLING
ELECTRONICALLY-CONTROLLED REGISTER VENT FOR ZONE HEATING AND COOLING
Numéro de demande: 11/669,066 Numéro de publication: US 2007/0119958 A1 Date de dépôt: 30 janv. 2007 Brevet délivré: US8033479 ( Date de délivrance 11 oct. 2011)
