| 摘要 |
A heater used in carton packing machinery comprises a nozzle 10 having at least one gas outlet jet 16, 18 which directs heated gas obliquely on to portions of carton material intended to be sealed together, thereby increasing the precision of the heat-sealing. Preferably the nozzle 10 comprises sides 20, 22, 24, 26 in which a plurality of outlet jets 16, 18 are located. <IMAGE> |
