Plastic article or earthenware shaping or treating: apparatus – Diverse distinct type shaping means – Shaping orifice and either a downstream preform reshaping...
Patent
1987-09-24
1988-12-27
Chiesa, Richard L.
Plastic article or earthenware shaping or treating: apparatus
Diverse distinct type shaping means
Shaping orifice and either a downstream preform reshaping...
2642093, 264565, 425 721, 4253871, 4254031, 425404, B29C 4720
Patent
active
047937904
ABSTRACT:
Apparatus for the external support of tubular films of thermoplastic material consists of groups of outwardly curved supporting segments disposed successively in the direction of withdrawal of the tubular film. These supporting segments are adjustable simultaneously and in the same sense to different tubular film diameters, and for their adjusting movement they are each connected with a turning bar which is common to all supporting segment groups and journalled in a supporting frame and with a holding bar aligned parallel thereto which again is common to all supporting segment groups.
REFERENCES:
patent: 3596321 (1971-08-01), Upmeier
patent: 3749540 (1973-07-01), Upmeier
patent: 3930781 (1976-01-01), Upmeier
patent: 3980418 (1976-09-01), Schott, Jr.
patent: 4243363 (1981-01-01), Mulcahy
patent: 4388061 (1983-06-01), Bebok
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