Fuel check valve

Details Fuel check valve Fuel check valve

2006-06-16

2009-08-04

Rivell, John (Department: 3753)

Fluid handling

Line condition change responsive valves

Direct response valves

C137S527000

Reexamination Certificate

active

07568499

ABSTRACT:
A fuel check valve that includes: a pipe having a fuel outflow port; a valve element attached in an openable and closable manner to the fuel outflow port of the pipe, the valve element being normally urged by a spring in a closing direction; a support shaft disposed on one of the pipe and the valve element while a basal end portion thereof is fixed and a tip end portion thereof is made free, the support shaft functioning as a swing fulcrum for the valve element; and a bearing portion disposed on another one of the pipe and the valve element to swingably support the support shaft, the bearing portion including: a receiving hole into which the tip end portion of the support shaft is inserted; and an engaging groove with which a basal portion side of the support shaft is engaged.

REFERENCES:
patent: 4614203 (1986-09-01), Russo
patent: 2004/0231728 (2004-11-01), Martin et al.
patent: 11-28938 (1999-02-01), None
patent: 2001-263514 (2001-09-01), None

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