Back to results
US 2013/0240571 A1Published application
Apparatus for pulsed dispensing of liquid
AssigneeNordson Corporation
InventorsScott A. Conner, William MacIndoe, Raymond W. Tetreault
Life of this patent
Estimating the term…
Abstract
An apparatus for pulsed dispensing of liquid. The apparatus includes a syringe body structure communicating with an input passage for pressurized actuation air, and communicating with an exit passage for allowing discharge of the liquid. An air input passage flow air controller is operative to increase the flow rate of the input air in accordance with a relationship that depends at least partially on a reduction of liquid volume in the syringe body structure resulting from a previous pulsed dispensing operation.
Claims9
Apparatus for pulsed dispensing of liquid, comprising:
- a syringe body structure communicating with an input passage for receiving pressurized actuation air, and communicating with an exit passage for allowing discharge of the liquid, the actuation air being used to force an amount of the liquid through the exit passage;
- and
- an air input flow rate controller operative to increase the flow rate of the actuation air through the input passage in accordance with a relationship that depends at least partially on a reduction of liquid volume in the syringe body structure resulting from a previous pulsed dispensing operation.
Dependencies are inferred from the claim text.