Document Type and Number:
Japanese Patent JPS4830671
Kind Code:
B1
Abstract:
After filling and before closing of a container of synthetic material, the volume of the container is reduced, by an amount corresponding to the reduction in volume on cooling of the container to reduce or prevent undue pressure in the closed container. Pressure can be applied pneumatically or mechanically to produce the reduction in volume.
Application Number:
JP6318870A
Publication Date:
September 21, 1973
Filing Date:
July 18, 1970
Export Citation:
International Classes:
B65B9/24; B29B11/10; B29C49/00; B29C49/04; B29C49/42; B29C49/48; B29C65/00; B65B47/00; (IPC1-7): B29D23/00