Fuel pump with filter-absent safety valve and universal...

Details Fuel pump with filter-absent safety valve and universal... Fuel pump with filter-absent safety valve and universal...

2007-01-02

2007-01-02

Stashick, Anthony (Department: 3746)

Pumps

Combined

C417S446000

Reexamination Certificate

active

10696938

ABSTRACT:
Fuel pump10includes a filter42that rests on ledge48, between the pump housing12and inlet cap56. Filter detector50has a valve engager stem62for opening the check valve58and bearing feet52that engage the perimeter of the filter but the bearing feet are out of alignment with the ledge. When the filter is absent from the pump, the bearing feet52of the valve engager move beyond the ledge48and the valve engager stem62retracts from the check valve58and the valve closes to terminate flow of fuel to the pump, thus limiting the fuel that can escape from then pump when it is opened. At least one of the inlet and outlet caps56and76are rotatably mounted to the intermediate body of the pump to allow the fuel inlet and outlet to be oriented at angular intervals about the pump to facilitate the connection of fuel lines to the pump.

REFERENCES:
patent: 5248223 (1993-09-01), Hill
patent: 5622623 (1997-04-01), Stone
patent: 6082984 (2000-07-01), Matsumoto et al.
patent: 6179577 (2001-01-01), Meyer
patent: 6190139 (2001-02-01), Isozumi et al.
patent: 6793463 (2004-09-01), Ward

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