Stabilising sleeve

Details Stabilising sleeve Stabilising sleeve

1973-07-19

1976-04-13

Thurlow, Jeffery R.

Plastic and nonmetallic article shaping or treating: processes

Reactive gas or vapor treatment of work

Work is organic material

264 95, 264209, 264210R, 264237, 264290R, 425 72R, 425326R, B29D 2304, B29C 2500

Patent

active

039504662

ABSTRACT:
Method and apparatus for stabilising the position of a tubular film comprising an annular, gas-permeable arcuate sleeve through which a tubular film can be passed, and means to supply gaseous fluid under pressure inwardly through the sleeve to create a cushion of gas between the tubular film and sleeve.
The arcuate sleeve is suitably used in combination with a primary air-ring.

REFERENCES:
patent: 2987767 (1961-06-01), Berry et al.
patent: 3008185 (1961-11-01), Goldman
patent: 3325575 (1967-06-01), Last
patent: 3544667 (1970-12-01), Ebert et al.
patent: 3663134 (1972-05-01), Coquelin
patent: 3814785 (1974-06-01), Reade

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