Fluent material handling – with receiver or receiver coacting mea – Filling means with receiver or receiver coacting means – Drip prevention
Patent
1975-01-21
1976-08-17
Aegerter, Richard E.
Fluent material handling, with receiver or receiver coacting mea
Filling means with receiver or receiver coacting means
Drip prevention
141226, 141392, B65B 318, B67C 334
Patent
active
039748650
ABSTRACT:
An automatic shut-off nozzle incorporating a vapor recovery system for recovering the displaced vapors from a gasoline storage tank or the like as the tank is being filled by the nozzle wherein the nozzle is automatically shut-off when the pressure within the vapor recovery system increases above a predetermined minimum pressure. The nozzle incorporates a latching mechanism which is releasable in response to the increase in pressure in the vapor recovery system and which is also responsive to a loss of vacuum pressure resulting from the level of the liquid in the storage tank rising above a predetermined level with respect to the nozzle. The nozzle is constructed such that the ambient pressure in the main diaphragm chamber corresponds to the pressure of the vapor recovery line so that the release mechanism for the slide is not as sensitive to the pressure in the gasoline storage tank. The nozzle also includes an improved vapor recovery shroud which incorporates a fulcrum support carried by the body of the nozzle which serves to direct the end sealing ring of the shroud into engagement with the end of the filling tube of a gasoline storage tank or the like.
REFERENCES:
patent: 3710831 (1973-01-01), Riegal
patent: 3719215 (1973-08-01), Murray
patent: 3780776 (1973-12-01), Eklund
patent: 3835899 (1974-09-01), Holder
Bower Allen M.
Fenton David T.
Aegerter Richard E.
Emco Wheaton Inc.
Schmidt Frederick R.
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