B - Operations – Transporting – 22 – C
Patent
B - Operations, Transporting
22
C
22/39
B22C 15/00 (2006.01) B22C 15/22 (1990.01)
Patent
CA 1332494
These improvements consist in the use of a highly elastic membrane (13) as a valve element, fixed by means of flanges 14 and 17 to a support plate 15, conforming an annular chamber 16 which may be pressurized through the conduit 19 to deform membrane 13 towards a closure situation where same falls upon the valve seat 24, an opening being established in the centre of the membrane-support plate assembly to which is axially coupled an outlet conduit 22 for release or outlet of the residual air present in the diffuser 9.
593583
de Foronda Fernandez Vincente Lopez
Fetherstonhaugh & Co.
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