Device with passage for liquid
AssigneeMicro Chemical Systems Limited
InventorThomas McCreedy
Life of this patent
Estimating the term…
Abstract
A microchip device has at least one passage along which a liquid can be moved by applying a voltage to the liquid. The device includes a passage member (10, 12) in which the passage is formed and which has an aperture (20, 22). Additionally the device includes an electrode member (14) that comprises an electrode (42, 44) and that is separably engageable with the passage member. The device includes a reservoir in fluid communication with the passages for holding a liquid. The electrode member cooperates with the aperture so that the electrode is in fluid communication with the passage without the electrode member obstructing the opening of the reservoir.
Claims24
A device including a passage along which a liquid may be moved by application of a voltage to the liquid, comprising:
- a passage member in which the passage is formed and having an aperture;
- an electrode member comprising an electrode and being separably engageable with the passage member;
- and wherein, when the electrode member is in said engagement with the passage member, the device has a reservoir in fluid communication with the passage for holding a liquid, the reservoir having an opening at a surface of the passage member, the electrode member cooperating with the aperture so that the electrode is in fluid communication with the passage without the electrode member occupying the opening, and wherein the electrode member cooperates with the passage member so that the aperture is sealed to prevent liquid escape therefrom between the electrode member and the passage member.
A device including a passage along which a liquid may be moved by application of a voltage to the liquid, comprising;
- a passage member in which the passage is formed and having an aperture,
- an electrode member comprising an electrode and being separably engageable with the passage member;
- and wherein, when the electrode member is in said engagement with the passage member, the device has a reservoir in fluid communication with the passage for holding a liquid, the reservoir having a base, the reservoir being continuous with the aperture, and the reservoir having an opening at a surface of the passage member, the electrode member cooperating with the aperture so that the electrode is in fluid communication with the passage without the electrode member occupying the opening, and so that the electrode is located in the reservoir adjacent the base of the reservoir.
A device including a passage along which a liquid may be moved by application of a voltage to the liquid, comprising;
- a passage member in which said passage is formed and having at least two apertures spaced from one another;
- an electrode member including at least two electrodes and a member that holds the electrodes in a spacing corresponding to the spacing of the apertures;
- the electrode member being separably engageable with the passage member, and wherein, when the passage member is in said engagement with the electrode member, each aperture is associated with a respective one of the electrodes so that each electrode is in fluid communication with the passage.
Dependencies are inferred from the claim text.