초록 ▼

A low liquid level float control apparatus particularly adapted for use in vessels or tanks containing a fluid of the type utilized in liquid vending machines is disclosed. An electronic control unit has a probe section extending downwardly therefrom containing a reed switch, which is activated by t

A low liquid level float control apparatus particularly adapted for use in vessels or tanks containing a fluid of the type utilized in liquid vending machines is disclosed. An electronic control unit has a probe section extending downwardly therefrom containing a reed switch, which is activated by the passage of an annular magnet vertically along the probe section. A second magnet is secured about the lower most portion of the probe section and is adjustable along the probe section thereby increasing the switch delay time, thus reducing the possibility of intermittent on-off operation of associated pump elements.

대표청구항 ▼

In a liquid level float controlled switch apparatus having a housing within which electrical components are present in a fluid-tight medium, and a probe section integral with and suspended from said housing; the improvements comprising, in combination: a float means disposed about said probe section

In a liquid level float controlled switch apparatus having a housing within which electrical components are present in a fluid-tight medium, and a probe section integral with and suspended from said housing; the improvements comprising, in combination: a float means disposed about said probe section for traversing said probe section in a vertical plane, a first magnet integral with said float means, a magnetically operated switch means located within said probe section and having oppositely facing magnetic elements adapted to contact one another in response to the presence of a magnetic field occasioned by the position of said first magnet relative to said magnetic elements, a second magnet disposed in a vertical plane and spaced apart on the same axis from said magnetic switch means, said second magnet slidably engaged with the exterior of said probe section.