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US 2014/0030166 A1Published application
Liquid dispensing device
AssigneeTTP Labtech Limited
InventorsAnthony Douglas, Gary Cochrane
Life of this patent
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Abstract
A droplet dispensing apparatus has a piston rod driven by a solenoid, the rod for connection to a piston of a droplet dispensing syringe, in which the output member from the solenoid is directly connected to the rod through the entire impulse produced by the solenoid.
Claims17
A droplet dispensing apparatus comprising:
- a piston rod for connection to a piston of a droplet dispensing syringe,
- a driver comprising a solenoid and an output member, the output member arranged to be accelerated by the solenoid,
- in which the output member is configured to be in contact with the piston rod such that the output member and piston rod simultaneously accelerate from a stationary condition.
A method of operating a droplet dispensing apparatus comprising the steps of:
- providing a driver comprising a solenoid and an output member,
- providing a piston rod,
- connecting the piston rod to a piston of a droplet dispensing syringe,
- simultaneously accelerating the output member and piston rod from a stationary condition whilst the output member and piston rod are in contact to advance the piston in the syringe to dispense fluid therefrom.
1 more element
A droplet dispensing apparatus comprising:
- a base defining a syringe attachment formation,
- a piston rod movably mounted to the base,
- an actuator arranged to move the piston rod, and,
- a syringe comprising a cylinder and a piston,
- in which the piston rod and the piston define complementary attachment formations configured to releasably join the piston rod and piston when driven together by the actuator whilst the syringe is held by the syringe attachment formation.
2 more elements
Dependencies are inferred from the claim text.