Electrical connectors – With supporting means for coupling part – Coupling part supported by randomly manipulated appliance
Patent
1997-10-21
1999-09-28
Paumen, Gary
Electrical connectors
With supporting means for coupling part
Coupling part supported by randomly manipulated appliance
219247, H01R 1360
Patent
active
059577231
ABSTRACT:
A cordless electric kettle comprises a power base unit to be connected to a power supply and an extension unit connected to a kettle body, the units being molded from plastics material and each incorporating an electrical connector located substantially on the kettle vertical axis, the electrical connectors being interengagable to form an electrical connection with one another (in the preferred form when the kettle is placed on the base unit at any orientation around the axis). The kettle includes an ON/OFF switch movable to an ON position by a manually operable actuator and a biasing member biasing the switch to an OFF position. In the preferred embodiment a plunger is associated with one of the connectors and arranged to be depressed through a predetermined distance when the connectors are fully engaged, depression of the plunger by the predetermined distance being arranged to disable the biasing member such that the ON/OFF switch may remain in the ON position, the predetermined amount being such that on separation of the base unit and extension unit the biasing member will be restored so as to urge the switch to the OFF position before the electrical connection between the connectors is broken. The base unit and extension unit have engagement parts respectively on upwardly facing and downwardly facing surfaces at least some of which are arranged to substantially always engage one another when the plunger is sufficiently depressed to disable the biasing member despite small inaccuracies in the dimensions of the molded units. The engagement is achieved by springing one or more of the engagement parts by forming adjacent slots in the molding to give limited axial movement inwardly from a rest position. Only a larger portion of an engagement part need be sprung.
REFERENCES:
patent: 909874 (1909-01-01), Danielson
patent: 1855570 (1932-04-01), Edison
patent: 2762678 (1956-09-01), Moore
patent: 4921426 (1990-05-01), Kawasaki et al.
Dualit Limited
Gilman Alexander
Paumen Gary
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