Patent ID: 11940820
Assignee: MEMJET TECHNOLOGY LIMITED
Field: Control (Instruments)
Classification: CPC G  B | IPC B  G

Claim 0:
1. A pressure regulating valve for an inkjet printhead, said valve comprising:
a valve inlet;
a valve outlet;
a fluid flow path defined between the valve inlet and the valve outlet;
an orifice positioned in the flow path;
a movable valve member configured for regulating a fluid flow rate through the orifice;
a regulator chamber having the valve outlet and comprising a diaphragm operatively connected to the valve member, such that movement of the diaphragm moves the valve member relative to the orifice; and
a biasing mechanism for resiliently biasing the diaphragm away from the orifice, wherein the valve member is bell-shaped or trumpet-shaped, and whereby a curved outer surface of the valve member determines an extent of occlusion of the orifice.