Electrical switch
AssigneeDefond Manufacturing Limited
InventorRaymond Wai Hang Chu
Life of this patent
Estimating the term…
Abstract
An electrical switch including a body, fixed and movable contacts in the body, a principal switching member supported by the body for movement between ON and OFF positions, and a subsidiary switching member supported by the principal switching member for movement in directions different from directions of movement of the principal switching member. The principal switching member has an inner part providing a switching profile to operate the movable contacts with respect to the fixed contacts for switching. The subsidiary switching member has an inner part positioned at the switching profile for changing the switching profile while the principal switching member is in the ON position. The switch may be used to control the operation of a hair dryer to provide, in particular, a COOL shot by operation of the subsidiary switching member.
Claims20
An electrical switch comprising:
- a body;
- first and second fixed contacts fixedly mounted on the body;
- first and second movable contacts located within the body and movable into and out of contract with the first and second fixed contacts, respectively;
- a principal switching member moving between first and second positions and actuating the first and second movable contacts, bringing the first fixed contact and the first movable contact into contact and the second fixed contact and the second movable contact into contact in the second position of the principal switching member, the first and second fixed and movable contacts being separated from each other when the principal switching member is in the first position;
- and
- a subsidiary switching member supported and moving with the principal switching member between the first and second positions of the principal switching member, the subsidiary switching member moving between third and fourth positions independent of the principal switching member, the subsidiary switching member separating the second movable contact from the second fixed contact when the principal switching member is in the second position and the subsidiary switching member is in the fourth position.
Dependencies are inferred from the claim text.