Refrigerant charging device
First Claim
1. In a refrigerant recharging system for adding refrigerant to an air conditioning system, a device for charging virgin refrigerant into the air conditioning system without exposing the virgin refrigerant to a process of the recharging system that is capable of removing certain additives in the virgin refrigerant, said device comprising:
- a main valve having a first inlet for receiving the virgin refrigerant from a source of virgin refrigerant, a second inlet for connection to the recovery system and for receiving refrigerant therefrom, and an outlet for connection to the air conditioning system to deliver refrigerant thereto, said main valve being operable to provide at least two flow paths that are exclusive of each other, a first flow path from said first inlet to said outlet, and a second flow path from said second inlet to said outlet; and
a second valve connected to said first inlet, said second valve configured for connection to said source of virgin refrigerant and being operable between open and closed positions for controlling the flow of fluid from said source of virgin refrigerant through said second valve to said main valve.
2 Assignments
0 Petitions
Accused Products
Abstract
A device for recharging an a/c system with dye containing refrigerant using recovery/recycle/recharging equipment. The device connects to the recovery/recycle/recharging equipment so as to allow the refrigerant/dye mixture to bypass the purification process of such equipment and has a main valve having first and second inlets and an outlet. The first inlet connects to a source of refrigerant/dye mixture, the second inlet connects to the recovery/recycle/recharging equipment and the internal refrigerant tank therein, and the outlet connects to the a/c system to be recharged. The main valve is operable to provide a first fluid path from the first inlet to the outlet while isolating the second inlet, and a second fluid path from the second inlet to the outlet while isolating the first inlet. In operation the device allows the isolation of the recovery/recycle/recharging equipment refrigerant tank while virgin refrigerant with dye is added to the a/c system.
38 Citations
18 Claims
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1. In a refrigerant recharging system for adding refrigerant to an air conditioning system, a device for charging virgin refrigerant into the air conditioning system without exposing the virgin refrigerant to a process of the recharging system that is capable of removing certain additives in the virgin refrigerant, said device comprising:
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a main valve having a first inlet for receiving the virgin refrigerant from a source of virgin refrigerant, a second inlet for connection to the recovery system and for receiving refrigerant therefrom, and an outlet for connection to the air conditioning system to deliver refrigerant thereto, said main valve being operable to provide at least two flow paths that are exclusive of each other, a first flow path from said first inlet to said outlet, and a second flow path from said second inlet to said outlet; and
a second valve connected to said first inlet, said second valve configured for connection to said source of virgin refrigerant and being operable between open and closed positions for controlling the flow of fluid from said source of virgin refrigerant through said second valve to said main valve. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A device for use with a refrigerant recovery/recycle/recharging system for charging virgin refrigerant into an air conditioning system without exposing the virgin refrigerant to a process of the recharging system that is capable of removing an additive in the virgin refrigerant, said device comprising:
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a main valve having a first inlet for receiving the virgin refrigerant from a source of virgin refrigerant, a second inlet for connection to the recovery system and for receiving refrigerant therefrom, and an outlet for connection to the air conditioning system to deliver refrigerant thereto, said main valve being operable to provide at least two flow paths that are exclusive of each other, a first flow path from said first inlet to said outlet, and a second flow path from said second inlet to said outlet;
a second valve connected to said first inlet, said second valve configured for connection to said source of virgin refrigerant and being operable between open and closed positions for controlling the flow of fluid from said source of virgin refrigerant through said second valve to said main valve; and
an extension hose connected to said outlet through which said main valve is capable of connecting to the air conditioning system for delivering refrigerant thereto. - View Dependent Claims (8, 9, 10)
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11. In a refrigerant recharging system for adding refrigerant to an air conditioning system, wherein the refrigerant recharging system comprises means for removing and purifying refrigerant from the air conditioning system, a storage recovery tank for storing the removed refrigerant, and a manifold for connection to the air conditioning system, a device for charging virgin refrigerant into the air conditioning system without exposing the virgin refrigerant to the means for purifying the refrigerant of the recharging system and comprising:
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a main valve having a first inlet for receiving the virgin refrigerant from a source of virgin refrigerant, a second inlet connected to the refrigerant recharging system for receiving refrigerant therefrom, and an outlet for connection to the air conditioning system to deliver refrigerant thereto, said main valve being operable to provide at least two flow paths that are exclusive of each other, a first flow path from said first inlet to said outlet, and a second flow path from said second inlet to said outlet; and
a second valve connected to said first inlet, said second valve configured for connection to said source of virgin refrigerant and being operable between open and closed positions for controlling the flow of fluid from said source of virgin refrigerant through said second valve to said main valve. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification