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US 8,802,030 B2Granted
Capillary dispenser
AssigneeCyBio AG
InventorAdrian Siemers
Life of this patent
Estimating the term…
Abstract
A capillary dispenser includes at least one plunger-cylinder unit having a cylinder module and a plunger module disposed together on an axis. The cylinder module has an inner cylinder that is pneumatically connected to at least one capillary. The plunger module includes a hollow plunger that is closable on one side and is movable in the inner cylinder along the axis between an upper end position and a lower end position of the plunger module.
Claims10
A capillary dispenser for dispensing a liquid out of at least one capillary comprising:
- at least one plunger-cylinder unit including
- a cylinder module defining an axis and having an inner cylinder that is pneumatically connected to at least one capillary, and
- a plunger module disposed on the axis and including a hollow plunger having open ends at both sides, the plunger being movable in the inner cylinder along the axis between an upper end position and a lower end position of the plunger module, the plunger being closable at one end so as to remain closed over an entire length of a path of travel of the plunger when being moved towards a lower end position so as to compress air present in the plunger-cylinder unit and dispense the liquid by the compressed air, and
- wherein the plunger module is associated with a plunger seal configured to receive an upper face of the plunger with a positive fit when the plunger module is in the upper end position so as to close the plunger, the plunger having axial play in a direction of the axis inside the plunger module.
1 more element
Dependencies are inferred from the claim text.