Cold room combination vent and light

Abstract

A combination light and pressure relief vent ( 10 ) is disclosed which includes a housing ( 11 ), a valve assembly ( 12 ), and a light assembly ( 13 ). The housing include a valve body ( 16 ), port tube ( 17 ), and an outside louver ( 18 ). The valve body has a low pressure intake port ( 25 ), a high pressure intake port ( 26 ), and a low pressure exhaust port ( 27 ). The valve assembly includes a low pressure intake valve ( 40 ), a high pressure intake valve ( 42 ), and a low pressure exhaust valve ( 44 ). The light assembly includes a heat sink casing ( 51 ) which partially defines a heat chamber ( 52 ). The casing has a front wall ( 55 ) to which is mounted an LED module ( 57 ). A lens cover ( 61 ) is coupled to the front surface of the casing. Heat generated by the LED module is transferred through the casing to the heat chamber to warm the valve assembly.

1 . A combination cold room light and vent comprising:
 a housing mountable to a cold room structure, said housing defining a heat chamber;   at least one air control valve coupled to said housing and in thermal communication with said heat chamber, and   a light source coupled to said housing, said light source being in thermal communication with said at least one air control valve through said heat chamber so that heat generated by the light source warms the at least one air control valve.   
     
     
         2 . The combination cold room light and vent of  claim 1  further comprising a thermally conductive casing partially defining said heat chamber of said housing, and wherein said light source is mounted to said thermally conductive casing. 
     
     
         3 . The combination cold room light and vent of  claim 2  wherein said housing is configured to receive said heat chamber within an interior space of said housing. 
     
     
         4 . The combination cold room light and vent of  claim 3  wherein said thermally conductive casing includes a light source mounting wall and peripheral sidewalls extending from said light source mounting wall. 
     
     
         5 . The combination cold room light and vent of  claim 1  wherein said at least one air control valve includes a low pressure air control intake valve and a high pressure air control intake valve. 
     
     
         6 . The combination cold room light and vent of  claim 5  wherein further comprising an air control exhaust valve. 
     
     
         7 . The combination cold room light and vent wherein said light source is an LED light. 
     
     
         8 . A combination cold room light and vent comprising:
 a tubular housing;   an air control valve assembly coupled to said tubular housing, and   a light assembly positioned to illuminate the interior of a cold room, said light assembly being in thermally communication with said air control valve assembly so as to heat said light assembly through the transfer of heat generated by said light assembly during activation of the light assembly.   
     
     
         9 . The combination cold room light and vent of  claim 8  wherein said tubular housing includes a thermally conductive casing partially defining a heat chamber, and wherein said light assembly is in thermal communication with said thermally conductive casing. 
     
     
         10 . The combination cold room light and vent of  claim 9  wherein said housing receives said thermally conductive casing within an interior space of said housing. 
     
     
         11 . The combination cold room light and vent of  claim 10  wherein said thermally conductive casing includes a light source mounting wall and peripheral sidewalls extending from said light source mounting wall. 
     
     
         12 . The combination cold room light and vent of  claim 8  wherein said air control valve assembly includes a low pressure air control intake valve and a high pressure air control intake valve. 
     
     
         13 . The combination cold room light and vent of  claim 12  wherein said air control valve assembly also includes an air control exhaust valve. 
     
     
         14 . The combination cold room light and vent of  claim 8  wherein said light assembly includes an LED light. 
     
     
         15 . A combination cold room light and vent comprising:
 a housing;   a thermally conductive casing coupled to said housing, the combination of said housing and said thermally conductive casing defining a heat chamber;   an air control valve coupled to said housing, said air control valve being in thermal communication with said heat chamber, and   a light source thermally coupled to said thermally conductive casing,   whereby heat generated by the light source warms the thermally conductive casing, thereby warming the heat chamber so as to warm the air control valve.   
     
     
         16 . The combination cold room light and vent of  claim 15  wherein said housing is configured to receive said thermally conductive casing therein. 
     
     
         17 . The combination cold room light and vent of  claim 16  wherein said thermally conductive casing includes a light source mounting wall and peripheral sidewalls extending from said light source mounting wall. 
     
     
         18 . The combination cold room light and vent of  claim 15  wherein said air control valve is a low pressure air control intake valve, and further comprising a high pressure air control intake valve. 
     
     
         19 . The combination cold room light and vent of  claim 18  further comprising an air control exhaust valve. 
     
     
         20 . The combination cold room light and vent of  claim 15  wherein said light source is an LED light.