| 摘要 |
1,053,729. Extrusion-blow moulding. P. A. SMITH (National Distillers & Chemical Corporation). June 30, 1965, No. 27781/65. Heading B5A. [Also in Division B8] In the blow moulding of a plastics bottle from an extruded parison the mould halves which close on the parison are provided with recesses into which material is pressed to form a handle. Blowing is effected by a piercing needle. The webs which connect the handle to the top of the bottle and a closure cap on the bottle are removed by trimming. |
