Vacuum-actuated vent assembly

Details Vacuum-actuated vent assembly Vacuum-actuated vent assembly

1992-08-28

1993-11-16

Nilson, Robert G.

Fluid handling

Control by change of position or inertia of system

Vent opening or closing on tipping container

123516, 1374932, 137587, 220746, F16K 1736

Patent

active

052614395

ABSTRACT:
An apparatus is provided for controlling discharge of fuel vapor from an aperture in a vehicle fuel tank. The apparatus includes a housing mounted in the aperture and a vent valve received in the housing for movement between a closed position blocking flow of fuel vapor from the vehicle fuel tank to a vapor recovery canister and an open position allowing flow of fuel vapor from the fuel tank to the vapor recovery canister. The apparatus also is configured to use vacuum from an external supply source to move the vent valve from the closed position to the open position.

REFERENCES:
patent: 1118394 (1914-11-01), Bullock
patent: 4000828 (1977-01-01), Crute et al.
patent: 4033475 (1977-07-01), Evans
patent: 4280529 (1981-07-01), Silvestri
patent: 4699638 (1987-10-01), Harris
patent: 4742840 (1988-05-01), Takahashi et al.
patent: 4877146 (1989-10-01), Harris
patent: 5028244 (1991-07-01), Szlaga
Prior Art Engineering Drawing Showing an AC-Rochester, Manifold Vacuum Actuated Vent Valve Assembly (undated).

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