Sealing system for diaphragm type vulcanizing process

Details Sealing system for diaphragm type vulcanizing process Sealing system for diaphragm type vulcanizing process

1988-10-13

1990-07-24

Shoap, Allan N.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

285910, 425389, F16J 1512

Patent

active

049430700

ABSTRACT:
In a sealing system for a diaphragm type vulcanizing press, the diaphragm (19), having a roundgoing fixing flange, applies the necessary compression moulding pressure during the vulcanizing press operation, and along its edge the diaphragm is attached to a fixing flange (10) on one of the press parts through a number of fixing devices mounted round along the diaphragm (19) edge, fixing a roundgoing frame (12) against the diaphragm (19) for the sealing of same against the press fixing flange (10). In that between frame (12) and the press fixing flange (10) along the diaphragm (19) flange edge and within the various fixing devices, a compression unit (14, 16) running round along these of a constant cross section shape to form a local and narrow compression zone (18) running round along the number of fixing units in the diaphragm flange material, good sealing is achieved with even large diaphragm areas between the fixing flange and the diaphragm at low assembly power viewed in relation to the maximum print medium pressure prevailing behind the diaphragm (19).

REFERENCES:
patent: 1984806 (1934-12-01), Pfefferle
patent: 2366161 (1945-01-01), Tweedale
patent: 2385544 (1945-09-01), Salisbury
patent: 2402868 (1946-06-01), Boyle
patent: 2895168 (1959-07-01), Sabo
patent: 2962757 (1960-12-01), Slemmons et al.
patent: 3398978 (1968-08-01), Gasche
patent: 3520543 (1970-07-01), Etter et al.
patent: 4030517 (1977-06-01), Pyle
patent: 4658618 (1987-04-01), Hellgren

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