How to Capillary action?

Q: How to Capillary action?

Electric-circuit-containing box,Dispensing pump accessories for preventing the ingress of air and for aiding in alignment

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Capillary action (sometimes capillarity, capillary motion, capillary effect, or wicking) is the ability of a liquid to flow in narrow spaces without the assistance of, or even in opposition to, external forces like gravity. The effect can be seen in the drawing up of liquids between the hairs of a paint-brush, in a thin tube, in porous materials such as paper and plaster, in some non-porous materials such as sand and liquefied carbon fiber, or in a biological cell. It occurs because of intermolecular forces between the liquid and surrounding solid surfaces. If the diameter of the tube is sufficiently small, then the combination of surface tension (which is caused by cohesion within the liquid) and adhesive forces between the liquid and container wall act to propel the liquid.

Electric-circuit-containing box

ActiveUS20060087500A1Avoid enteringSmall sizeEmergency casingsCathode-ray tube indicatorsInterior spaceEngineering

In an electric-circuit-containing box including an upper case having a side provided with a hole and a lower case having a side provided with a projection to be fitted in the hole, moisture is prevented from entering the box from the hole of the upper case by a capillary phenomenon. A recess separate from an inside surface of an upper case is provided around a projection of a side of a lower case. Thus, a specified interval is ensured between the periphery of the projection of the side of the lower case and the hole of the upper case. Accordingly, even if moisture attached to an upper part of the upper case flows to the vicinity of the hole 1b along an outside surface of the upper case, there does not occur a state that the moisture passes through between both the cases from the hole by the capillary phenomenon and enters inner spaces of both the cases and in which a board and electronic parts are contained.

Owner:OMRON AUTOMOTIVE ELECTRONICS CO LTD

Dispensing pump accessories for preventing the ingress of air and for aiding in alignment

InactiveUS6854622B2Actuation can be preventedAvoid depressionBathing devicesMedical applicatorsAngular rangeCapillary action

Accessories are provided for preventing the ingress of air into a dispensing pump (P) and to align a discharge aperture of the dispensing pump with a target, such as an eye (E). A dip tube (10) is disclosed that is sealed with a sealing plug (22) to serve as a liquid reservoir for the dispensing pump. A pliant dip tube (100) is also disclosed to which is mounted an anchor (108) that causes the dip tube (100) to be responsive to gravitational orientation of a dispensing pump (P). In a third embodiment of the invention, a liquid reservoir (200) is formed with a recess (208) that is covered by a semi-permeable membrane (212). The semi-permeable membrane restricts flow in and out of the recess (208) to maintain a supply of liquid (L) about an end (210) of a dip tube (206). In a fourth embodiment, a safety is provided that comprises a safety ball (304), a blind aperture (306) defined in a nozzle cap (302), and a conical depression (308) defined in the dispensing pump (P). The safety ensures that the dispensing pump (P) is only actuated with the discharge aperture (300) of the dispensing pump (P) being oriented within a predetermined angular range of operation (α, β). In a fifth embodiment, a dispensing pump (P) includes a pump cylinder (400) that has one end thereof in close proximity to a base (402) of a liquid reservoir (404). A capillary action is created to cause liquid (L) to be drawn into the inlet opening (406) of the pump cylinder (400). Alignment aids (502; 600) are also disclosed to allow for proper alignment of a discharge aperture (500; 602) of a dispensing pump (P) with the eye (E) of a user.

Dispensing pump accessories for preventing the ingress of air and for aiding in alignment

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Owner:COHEN

2 results about "Capillary action" patented technology

Electric-circuit-containing box

Dispensing pump accessories for preventing the ingress of air and for aiding in alignment

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