B - Operations – Transporting – 67 – D
Patent
B - Operations, Transporting
67
D
B67D 7/54 (2010.01) B67D 7/04 (2010.01) B67D 5/378 (2006.01) B67D 5/04 (2006.01)
Patent
CA 2075262
Abstract of the Disclosure A fuel dispensing nozzle (10) has a body (12) including a fuel passage for fuel to flow from a source thereof through the body. A spout (18) is attached to the body in fluid communication therewith for fuel to flow into the spout from the passage. The distal end of the spout forms a mouth (19) insertable into the tank. A vapor return path is provided for capturing fuel vapors and returning them to the source, so to substantially reduce or eliminate emissions. A vacuum is produced in a variable venturi portion (42) of the nozzle and is applied to the return path to extract any fuel collecting therein. This vacuum is in addition to another vacuum produced at the venturi and used to assist in automatically shutting -off fuel flow when the tank is full. This device is a power generating source that is not limited to only fuel extraction and nozzle shut off. It can also be used for other apparent uses, having the multiple usage applied in conjunction with the vapor recovery systems in the category of the balanced pressure system and the vacuum assist system.
Fink Arthur C. Jr.
Mitchell Thomas O.
Husky Corporation
Smart & Biggar
LandOfFree
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