Patent ID: 8082750

Claim:
A device for automatic processing of contaminated refrigerant from an air conditioning system, said device comprising: a compressor for compressing refrigerant; a storage tank, said storage tank receiving and temporarily containing said compressed refrigerant; said storage tank including a vapor port and a liquid port; a vacuum pump for creating low pressure within said device during evacuation of refrigerant; a low pressure service hose for connecting said device to said air conditioning system; a high pressure service hose for connecting said device to said air conditioning system; at least one automatic electro-mechanically controlled multi-position ball valve; said automatic electro-mechanically controlled multi-position ball valve further including a position locator, said position locator determining the exact position of said automatic multi-position ball valve; said position locator including at least one optical sensing means having an optical sensor light and a sensor, and a rotating light interrupting wheel having at least one optical sensor position hole; said rotating light interrupting wheel disposed between said optical sensor light and said sensor; said position locator determining said exact position of said automatic multi-position ball valve when said sensor receives light from said optical sensor light through said position hole; and said at least one automatic electro-mechanically controlled multi-position ball valve controlling flow of said refrigerant through said device.