F - Mech Eng,Light,Heat,Weapons – 22 – B
Patent
F - Mech Eng,Light,Heat,Weapons
22
B
341/12
F22B 35/00 (2006.01) B01J 4/00 (2006.01) C03B 37/014 (2006.01) C23C 16/448 (2006.01) G05D 11/13 (2006.01)
Patent
CA 1152183
PARTUS-8 - 12 - VAPOR DELIVERY CONTROL SYSTEM AND METHOD Abstract of the Disclosure A method is disclosed for controlling the delivery of vapor from a bubbler containing a supply of liquid through which a carrier gas is bubbled and from which bubbler vapor is delivered in a vapor stream entrained with the carrier gas. The method comprises the steps of sensing the ratio of vapor to carrier gas in the vapor stream and applying heat to the liquid within the bubbler at rates relative to the sensed ratios of vapor to carrier gas being delivered from the bubbler in the vapor stream to hold the ratio constant. A vapor delivery control system is also disclosed which comprises a vaporizer, a heater thermally coupled with the vaporizer, and means for maintaining a supply of liquid in the vaporizer. The system further includes means for introducing a carrier gas into the vaporizer, means for conducting the carrier gas and vapors of the liquid entrained with the carrier gas from the vaporizer, means for sensing the ratio of vapor to carrier gas being conducted from the vaporizer, and means for controlling the heater responsive to the ratio of vapor to carrier gas sensed by the sensing means to hold the ratio constant.
374252
Kirby Eades Gale Baker
Western Electric Company Incorporated
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