Method and apparatus for shrinking a container closure

Details Method and apparatus for shrinking a container closure Method and apparatus for shrinking a container closure

1981-03-26

1982-09-14

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

29429, 29447, 53441, 53442, 156497, 156499, 156DIG15, 156DIG36, 215 1C, 215246, 264230, 264342R, 432121, 432128, B29C 2712, B32B 3126

Patent

active

043493998

ABSTRACT:
In a method of shrinking screw caps (2) on to the mouths (1) of containers (13), the screw caps are acted upon by a hot gas jet (7, 8) from nozzles (3, 4), along a feed path (6), from both sides. The flow axes (7, 8) are displaced relative to each other so that there are no pressure build-up and stagnation effects. The resulting advantageous temperature pattern at the nozzles means that savings in heating output can be attained. In addition, there is no longer any need for the bottles to be rotated about their own axis (10).

REFERENCES:
patent: 3309835 (1967-03-01), Peppler
patent: 3578536 (1971-05-01), Peck et al.
patent: 4011122 (1977-03-01), Ashcroft
patent: 4172873 (1979-10-01), Spicer

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