Title: Sealing device for hot fluid curing units

Abstract: A sealing device for hot fluid curing units comprising a pair of telescopically slidable tubular bodies provided with means for originating a relative movement of said bodies with respect to each other and to the curing unit, the material travelling in said unit passing through said tubular bodies. Each tubular body incorporates an expansible and collapsible ring ensuring tightness between the tubular body and the material to be treated, so that a continuous movement of the material travelling in the curing unit can be obtained.

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Inventors: Previati, Augusto (Milan, IT)

Application Number: 435492
Filing Date: 1974-01-22
Publication_date: 1976-07-06
Assignee: Industrie Pirelli S.p.A. (Milan, IT)
Primary Class(es): 226/115 226/150, 226/162
Other Classes:
US Patent Ref:

2990091	Jun, 1961	Goldsworthy	226/112.
3133469	May, 1964	Ljungberg	226/150.
3819073	Jun, 1974	Asselborn	226/162.

Other Refs: 2,028,851

Dec, 1970	DT

Primary Examiner: Schacher, Richard A.
Assistant Examiner:
Attorney: Stevens, Davis, Miller & Mosher