Multipole circuit breaker system with differential pole operation
AssigneeAirpax Corporation, LLC
InventorGeorge S. Harper
Life of this patent
Estimating the term…
Abstract
A multiple circuit breaker system wherein each single pole breaker within the multiple breaker system have very similar structure and dimensions, except that at least one of the breakers (e.g. the one which is connected to a floating neutral pole) has an additional articulation which the other breakers do not have. This additional articulation, and the associated spring action, provide extended contact time.
Claims14
A multipole circuit breaker system comprising:
- a handle movable to make or break contact;
- a plurality of breaker assemblies of first and second types, each said breaker assembly comprising:
- (a) movable contact means for electrically contacting a fixed contact means;
- (b) a collapsible toggle, mechanically connected to said handle and to said movable contact means in such relation that collapse of said toggle permits said movable contact means to move away from said fixed contact means;
- said assemblies of said second type, but not said assemblies of said first type, further comprising a contact bar means and a contact bar carrier means, wherein
- (1) said contact bar carrier means is pivotably mounted at a first connection;
- and
- (2) said contact bar means and said contact bar carrier means are pivotably connected together at a second connection, apart from said first connection such that overtravel in response to movement of said handle to make contact occur at said second connection.
The system of claim further comprising a plurality of handle means for manually operating said plurality of circuit breaker assemblies, wherein said plurality of handle means are connected so as to cause said plurality of handle means to move substantially in unison.
Dependencies are inferred from the claim text.