US RE46,600 E1
Multi-gas valve for a gas burning appliance
Iñigo Albizuri, Muxika (ES)
Assigned to COPRECITEC, S.L., Aretxabaleta (ES)
Filed by COPRECITEC, S.L., Aretxabaleta (Guipuzcoa) (ES)
Filed on Apr. 9, 2013, as Appl. No. 13/859,576.
Application 12/639,856 is a continuation of application No. 12/069,657, filed on Feb. 12, 2008, granted, now 7,641,470, issued on Jan. 5, 2010.
Application 12/069,657 is a continuation of application No. 11/143,785, filed on Jun. 1, 2005, abandoned.
Application 13/859,576 is a reissue of application No. 12/639,856, filed on Dec. 16, 2009, now 7,963,763, issued on Jun. 21, 2011.
Claims priority of application No. 200500309 U (ES), filed on Feb. 10, 2005.
This patent is subject to a terminal disclaimer.
Int. Cl. F23N 3/02 (2006.01); F23C 1/08 (2006.01); F23N 1/00 (2006.01)
CPC F23C 1/08 (2013.01) [F23N 1/007 (2013.01); F23N 3/02 (2013.01); F23N 2035/16 (2013.01); F23N 2037/08 (2013.01); F23N 2041/04 (2013.01)] 15 Claims
OG exemplary drawing
 
[ 5. A valve adapted to regulate the flow of both a natural gas and a liquefied petroleum gas comprising:
a valve body having disposed therein a rotatable regulating organ positioned between a valve inlet and a valve outlet, the valve outlet having a first restriction and a second restriction successive to the first restriction, the first restriction comprising a first hole calibrated to provide a given maximum flow rate of the natural gas at a first pressure in the absence of the second restriction, the second restriction removeably attached to the valve outlet, the second restriction comprising a second hole calibrated to provide a given maximum flow rate of the liquefied petroleum gas at a second pressure, the second hole being smaller than the first hole, the regulating organ being configured to vary the flow rate of the gaseous fuel at the valve outlet as a function of an angular position of the regulating organ, a first angular position of the regulating organ determines a first minimum flow rate of the natural gas, and a second angular position of the regulating organ, successive to the first angular position, determines a second minimum flow rate of the liquefied petroleum gas, the valve further comprising a stop that prevents rotation of the regulating organ beyond the second angular position.]