US 12,211,661 B2 · Status indicator for switchgear

Abstract

A switchgear assembly includes an indicator assembly to indicate whether a movable contact is in an open or a closed position. The indicator assembly includes an indicator body having first and second sections. The indicator body is rotatable to display the first section in the open position and the second section in the closed position. The indicator assembly also includes a drive gear having a first helical spline and coupled to an actuator of the switchgear assembly such that operation of the actuator moves the drive gear, and an elongated driven gear having a second helical spline extending along a length of the driven gear and engaged with the first helical spline of the drive gear such that movement of the drive gear rotates the driven gear. The driven gear is coupled to the indicator body such that rotation of the driven gear causes rotation of the indicator body.

Claims20

Dependent claims

An indicator operable to display whether a switchgear assembly is in an open position or a closed position, the indicator comprising:

an indicator body rotatable relative to a longitudinal axis of the switchgear assembly, wherein upon rotation the indicator is configured to selectively display indicia that indicates whether the switchgear assembly is in the open position or the closed position;
a drive member coupled to a movable contact of the switchgear assembly such that operation of the switchgear assembly between the open position and the closed position moves the drive member along the longitudinal axis;
a driven member engaged with the drive member such that movement of the drive member rotates the driven member about the longitudinal axis, wherein the driven member is coupled to the indicator body such that rotation of the driven member rotates the indicator body;
and
a cover coupled to a housing for the switchgear assembly and through which at least a portion of the indicator body is visible, and
wherein the driven member and indicator body are coupled to the switchgear assembly independently from the cover.

3 more elements

An indicator operable to display whether a switchgear assembly is in an open position or a closed position, the indicator comprising:

an indicator body rotatable to selectively display indicia that indicates whether the switchgear assembly is in the open position or the closed position;
a drive member coupled to a movable contact of the switchgear assembly such that operation of the switchgear assembly between the open position and the closed position moves the drive member along a longitudinal axis of the switchgear assembly;
and
a driven member configured to engage the drive member such that movement of the drive member along the longitudinal axis rotates the driven member, wherein an inner surface of the drive member encircles and engages a periphery of the driven member, and wherein the driven member is coupled to the indicator body such that rotation of the driven member rotates the indicator body.

1 more element

An indicator operable to display whether a switchgear assembly is in an open position or a closed position, the indicator comprising:

an indicator body rotatable to selectively display indicia that indicates whether the switchgear assembly is in the open position or the closed position;
a drive member coupled to a movable contact of the switchgear assembly such that operation of the switchgear assembly between the open position and the closed position moves the drive member along a longitudinal axis of the switchgear assembly;
a driven member that is configured to engage the drive member such that movement of the drive member along the longitudinal axis rotates the driven member, and wherein the driven member is coupled to the indicator body such that rotation of the driven member rotates the indicator body,
wherein the driven member is configured to receive projections provided on an outer surface of the drive member to engage the drive member such that movement of the drive member along the longitudinal axis rotates the driven member about the longitudinal axis, and
wherein the driven member is coupled to the indicator body such that rotation of the driven member rotates the indicator body.

2 more elements

Dependencies are inferred from the claim text.

Status indicator for switchgear

Life of this patent

Status indicator for switchgear

Life of this patent

Abstract

Claims20