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US 9,318,286 B2Granted
Point level float switch with opposite polarity magnets
AssigneeCaterpillar Inc.
InventorsGaneshram Muthusamy Devarajan, Amiyo K. Basu
Life of this patent
Estimating the term…
Abstract
A point level float switch is provided. The point level float switch includes a switch, a removable shaft, and a float. The removable shaft includes a first magnet aligned with the switch. The float is arranged to enclose at least a portion of the removable shaft. The float includes a second magnet of a polarity opposite to the first magnet and arranged parallel to the first magnet in the removable shaft.
Claims20
A point level float switch, comprising:
- a switch;
- a removable shaft including an axis, and a first magnet aligned with the switch;
- and
- a float arranged to enclose at least a portion of the removable shaft, the float including a second magnet of a polarity opposite to the first magnet and arranged parallel to the first magnet in the removable shaft, wherein the float is configured to move in a direction perpendicular to the axis of the removable shaft.
1 more element
A housing for a point-level float switch, the housing comprising:
- a reed switch;
- a screwable shaft having a first magnet embedded therein and aligned with the reed switch, the screwable shaft also having an axis;
- and
- a float arranged to enclose at least a portion of the screwable shaft, the float including a second magnet of a polarity opposite to the first magnet and arranged parallel to the first magnet in the screwable shaft, wherein the float is configured to move in a direction perpendicular to an axis of the screwable shaft.
1 more element
A method of making a point level float switch, the method comprising:
- providing a switch;
- aligning with the switch, a first magnet inside a removable shaft;
- arranging a float enclosing at least a portion of the removable shaft, wherein the float is configured to move in a direction perpendicular to an axis of the removable shaft;
- and
- providing a second magnet of a polarity opposite to the first magnet inside the float, the first and the second magnets being parallel.
2 more elements
Dependencies are inferred from the claim text.