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US 6,382,598 B1Granted
Fuel flow control device for diaphragm-type carburetor
AssigneeWalbro Japan, Inc.
InventorHitoshi Terakado
Life of this patent
Estimating the term…
Abstract
An improved fuel flow control device of a diaphragm-type carburetor having a lever which can be easily coupled to a flow control valve body. The lever has a resilient portion which flexes to permit a cooperating portion of the valve body to pass thereby and into an opening in the lever. After the valve body is received in the opening, the resilient portion returns at least in part to its unflexed position to retain the valve body and prevent its separation from the lever.
Claims9
A fuel flow control device for a carburetor having a diaphragm defining at least in part a constant pressure fuel chamber, said device comprising:
- a valve body having a reduced diameter engagement groove and a valve head and being movable between open and closed positions to control fuel flow into the constant pressure fuel chamber;
- and
- a lever having opposed ends, pivotably carried by the carburetor between its ends, communicated with the diaphragm at one end to be responsive to movement of the diaphragm and having an opening adjacent to its other end defined at least in part by a resilient portion and having an effective size smaller than a portion of the valve body inserted into the opening with said resilient portion being flexible to permit said portion of the valve body to pass thereby to dispose the engagement groove in the opening and thereafter said resilient portion returns at least in part toward its unflexed state to prevent said portion of the valve body from freely passing thereby to prevent inadvertent separation of the valve body and lever.
Dependencies are inferred from the claim text.