Liquid dispensing module
AssigneeNordson Corporation
InventorCharles P. Ganzer
Life of this patent
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Abstract
A dispensing module includes a needle and an actuator housing defining an actuator cavity with an actuator disposed therein, a body cavity, and a needle passageway connecting the actuator cavity and the body cavity. A lower end of the needle defines a valve element, and an upper end of the needle is secured to the actuator. The dispensing module also includes a nozzle adapter releasably coupled to the actuator housing, where the nozzle adapter defines a seal seat, a fluid inlet, a fluid channel, and a fluid outlet in fluid communication with the fluid inlet and the fluid channel. The nozzle adapter is configured to be releasably coupled to the actuator housing using one or more fasteners, such that the needle extends into the fluid channel.
Claims28
A dispensing module for dispensing a liquid, the dispensing module comprising:
- an actuator housing defining an actuator cavity, a body cavity, and a needle passageway connecting the actuator cavity and the body cavity;
- an actuator disposed within the actuator cavity;
- a needle defining an upper end and a lower end opposite the upper end in a longitudinal direction, the lower end defining a valve element, wherein the upper end of the needle is secured to the actuator such that the needle extends from the actuator cavity through the needle passageway;
- a nozzle adapter releasably coupled to the actuator housing, the nozzle adapter defining a nozzle body including an upper surface, a seal seat extending into the nozzle body from the upper surface, a recess configured to receive a flexible seal, the recess extending into the nozzle body from the upper surface and encircling the seal seat, a fluid inlet, a fluid channel partially defined by a valve seat, and a fluid outlet in fluid communication with the fluid inlet and the fluid channel, the fluid channel extending from the seal seat to the fluid outlet, wherein the nozzle adapter is configured to be at least partially disposed within the body cavity when coupled to the actuator housing, such that the lower end of the needle extends into the fluid channel, and wherein the recess and the seal seat define respective upper openings at the upper surface that are aligned along a direction perpendicular to the longitudinal direction;
- and
- at least one seal configured to be received within the seal seat, wherein the at least one seal is configured to prevent flow of the liquid from the fluid channel of the nozzle adapter into the needle passageway of the actuator housing.
A dispensing module for dispensing a liquid, the dispensing module comprising:
- an actuator housing defining a top surface, a bottom surface opposite the top surface in a longitudinal direction, the bottom surface defining a first aperture configured to receive a fastener, the actuator housing further defining an actuator cavity, a body cavity, and a needle passageway connecting the actuator cavity and the body cavity;
- an actuator disposed within the actuator cavity;
- a needle defining an upper end and a lower end opposite the upper end in the longitudinal direction, the lower end defining a valve element, wherein the upper end of the needle is secured to the actuator such that the needle extends from the actuator cavity through the needle passageway;
- and
- a nozzle adapter defining a nozzle body that includes an upper surface, a lower surface opposite the upper surface in the longitudinal direction, and a protrusion extending from the nozzle body in a lateral direction that is perpendicular to the longitudinal direction at a location between the upper surface and the lower surface along the longitudinal direction, the protrusion defining a second aperture configured to receive the fastener, the nozzle adapter further defining a seal seat extending into the nozzle body from the upper surface, a recess configured to receive a flexible seal, the recess extending into the nozzle body from the upper surface and encircling the seal seat, a fluid inlet, a fluid outlet, and a fluid channel extending from the seal seat to the fluid outlet, and wherein the recess and the seal seat define respective upper openings at the upper surface that are aligned along the lateral direction,
- wherein the fluid channel is in fluid communication with the fluid inlet and the fluid outlet, the fluid channel being partially defined by a valve seat,
- wherein the nozzle adapter is configured to be at least partially disposed within the body cavity when coupled to the actuator housing, such that the lower end of the needle extends into the fluid channel, and the fastener extends through the first aperture and the second aperture such that the fastener releasably secures the nozzle adapter to the actuator housing.
Dependencies are inferred from the claim text.