Pumps – Combined
Reexamination Certificate
2007-04-24
2007-04-24
Gartenberg, Ehud (Department: 3746)
Pumps
Combined
C417S446000
Reexamination Certificate
active
11006171
ABSTRACT:
Fuel pump assembly10includes a filter42that rests on ledge48, between the pump housing22and inlet cap56. Filter detector50has a valve engager62for opening the check valve58and bearing feet52that engage the perimeter of the filter. When the filter is absent from the pump, the bearing feet52of the filter detector move beyond the ledge48into the recess54and the valve engager stem62retracts from the check valve58and the valve closes to terminate flow of fuel to the pump. 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. A progressive seal is formed at the O-ring86between the inlet end cap56and the fuel pump housing to continue the seal as the end cap is removed or reassembled with the housing so that the check valve is closed before the housing is opened.
REFERENCES:
patent: 4401416 (1983-08-01), Tuckey
patent: 4820139 (1989-04-01), Tuckey
patent: 5655892 (1997-08-01), Cherniawski et al.
patent: 5915926 (1999-06-01), Janik et al.
patent: 6068456 (2000-05-01), Tuckey et al.
patent: 2004/0146413 (2004-07-01), Grant
Frantz Jessica
Gartenberg Ehud
Thomas Kayden Horstemeyer & Risley LLP
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