Gas flow check valve for bottle filling device

Details Gas flow check valve for bottle filling device Gas flow check valve for bottle filling device

B - Operations, Transporting

67

C

B67C 3/26 (2006.01) B67C 3/28 (2006.01)

Patent

CA 2078153

ABSTRACT A gas flow check valve for a bottle filling device employs a piston received within a bore which is maintained at the bottom of the filling head vent tube. The piston has a head thereon which is interposed within the flow path of escaping gas during the filling operation. The escaping gas impinges upon the underside of the head and urges the same toward a sealing position. An opposite end of the piston extends downwardly into the bottle being filled. When the level of the beverage within the bottle reaches the bottom of the piston, the buoyancyof the piston, coupled with the forces of the escaping gas impinging upon the piston head urge the piston into sealing engagement, terminating the escape of gas and similarly terminating the inward flow of beverage or liquid, terminatingthe filling operation.

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