Blocking members and circuit breakers having quick-make feature
AssigneeABB Schweiz AG
InventorsDavid Peter Mika, Linda Yvonne Jacobs, Daniel Edward Delfino, Nagesh V. Tumu, Dmitry Povolotskiy
Life of this patent
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Abstract
A blocking member for an actuator having a movable arm for effecting a quick-make feature, includes, for example, an elongated member having a first end and a second end, wherein a portion of the elongated member is configured so that the blocking member disposed in a first position engages a portion of the movable arm of the actuator to restrain movement of the movable arm and so that the blocking member disposed in a second position disengages from the portion of the movable arm of the actuator to permit movement of the movable arm.
Claims20
A blocking member for an actuator having a movable arm for effecting a quick-make feature, the blocking member comprising:
- an elongated member having a first end and a second end, wherein a portion of the elongated member is configured such that (i) when the blocking member is disposed in a first position, the movable arm is disposed through the blocking member and the blocking member engages a portion of the movable arm of the actuator to restrain movement of the movable arm and (ii) when the blocking member is disposed in a second position, the movable arm is disposed through the blocking member and the blocking member disengages from the portion of the movable arm of the actuator to permit movement of the movable arm.
A circuit breaker having a quick-make feature, the circuit breaker comprising:
- a frame supporting a stationary electrical contact;
- a movable arm having a first end attachable to the frame and a second end supporting a movable electrical contact contactable with the stationary electrical contact;
- a first spring to apply a first force to move the movable arm in a first direction to open the electrical contacts;
- a second spring to apply a second force to move the movable arm in a second direction to close the electrical contacts;
- and
- a blocking member configured such that (i) when the blocking member is disposed in a first position, the movable arm is disposed through the blocking member and the blocking member engages a portion of the movable arm to restrain movement of the movable arm by the first spring and (ii) when the blocking member is disposed in a second position, the movable arm is disposed through the blocking member and the blocking member disengages from the portion of the movable arm to permit movement of the movable arm by the second spring.
A method for effecting a quick-make feature, the method comprising:
- disposing a movable arm through a blocking member,
- engaging a portion of the movable arm with the blocking member to restrain movement of the movable arm in a first direction;
- and
- disengaging the portion of the movable arm from the blocking member to allow movement of the movable arm in the first direction,
- wherein the movable arm remains disposed through the blocking member both when engaged with the blocking member and when disengaged from the blocking member.
Dependencies are inferred from the claim text.