| 摘要 |
<p>Alternative piston pump, able to take in and dispense a determinate quantity of a dye, paint or similar product, comprising a container (11) having a cylindrical cavity (17) inside which a piston (23) is able to slide axially, and a sleeve extendible axially and rigid radially (22), inserted into said cylindrical cavity (17) and having a first end (22a) connected to said piston (23). The sleeve extendible axially and rigid radially (22) has a second end (22b) connected through a flange to a closing plate (18), able to close one end of the cylindrical cavity (17), and the piston (23) and the sleeve extendible axially and rigid radially (22) are made in a single piece.</p> |
