Latch-free circuit breakers

A circuit breaker comprising:

• a housing;
• a stationary electrical contact attached to said housing;
• a movable arm operably movably attachable to said housing and a second end having an electrical contact releaseably contactable with said stationary electrical contact;
• and
• an actuator mechanism comprising:
• a first biasing means operable to apply a force to move said movable arm in a first direction to open said electrical contacts;
• a second biasing means operable to apply a force to move said movable arm in a second direction to close said electrical contacts;
• a yieldable support having a rigid configuration defining a generally straight axis and a flexible configuration defining a non-straight axis;
• said yieldable support operable in said rigid configuration to support a compression force along said straight axis due to and countering said first biasing means so that said movable arm is prevented from movement in said first direction to open said electrical contacts while said second biasing means is operable to apply said force to move said movable arm in said second direction to close said electrical contacts;
• and
• said yieldable support operable, by applying a tripping force, to said yieldable support to transition said rigid configuration to said flexible configuration to withdraw support of said compression force and allow said movable arm to be moved by said first biasing means in said first direction to open said electrical contacts.