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US 3,947,791 AGranted
Locking device having low control power for an electrical device
AssigneeUnelec
InventorJean Hennemann
Life of this patent
Estimating the term…
Abstract
Locking device of low control power for an electrical device having, between the locked part and the locking control element, a locking assembly having a rolling movement. This locking assembly has a rotating bearing and at least one coaxial disk is installed floating in a yoke connected with the control element. The device is installed more particularly on circuit-breakers for which it ensures accurate controlling, low consumption of power and high reliability.
Claims8
Locking device having a low control power for locking an electrical device including a lockable part, said control device comprising:
- a locking control element, a locking assembly operatively positioned between said lockable part and said locking control element and responsive to movement of the locking control element to release said lockable part;
- the improvement wherein:
- a bolt is operatively positioned between said locking assembly and said lockable part for selectively locking and unlocking said lockable part and in turn being selectively locked by said assembly, and wherein said assembly comprises a rotating bearing and at least one coaxial disk, said bearing and said disk respectively being in rolling contact at their periphery with said bolt and with a fixed bearing surface and wherein said bearing assembly is floatingly mounted on said control element.
Dependencies are inferred from the claim text.