Hose-connector for cupping glass - forms extension of elastic pump body and fits inside tubular extension on glass with internal sleeve

摘要

The connector forms an extension (5) of the body (3), and is inserted in a tubular extension (6) of the glass (1). There can be a sleeve (4) inside the extension, and which containing a non-return valve (8) allowing flow (a) only into the pump body. Alternatively, the connection in the glass can be formed by drilling the latter. This typically gives an internal diameter of 10 to 30 mm. USE/ADVANTAGE - For a cupping glass having two openings and an elastic pump body. Can be series-produced in automatic glass-blowing machines.