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US 7,008,246 B2Granted
Electric plug with replaceable head unit
AssigneeNone recorded
InventorRui Zhuge
Life of this patent
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AssigneeNone recorded
InventorRui Zhuge
Estimating the term…
An electric plug includes a receptacle having an engaging seat and at least two resilient conductors spacedly provided on the engaging seat of the plug housing, and a detachable head unit including a supporting platform slidably fitted into the engaging seat in a detachably attaching manner, and at least two plugging heads which are spacedly extended from the supporting platform and are sized and shaped adapted for fitting into an electric socket. Each plugging head has an affixing end penetrated through the supporting platform as an electric contacting link, wherein when the supporting platform is slid in the engaging seat to detachably mount the detachable head unit to the receptacle, the two resilient conductors are conductively contacted with the affixing ends of the plugging heads respectively so as to electrically connect the plugging heads with the AC circuitry of the receptacle.
An electric plug for an electric socket, comprising:
An electric plug for an electric socket, comprising:
An electric plug for an electric socket, comprising:
An electric plug for an electric socket, comprising:
An electric plug for electric sockets with various safety standards, comprising:
An electric plug for electric sockets with various safety standards, comprising:
An electric plug for electric sockets with various safety standards, comprising:
An electric plug for electric sockets with various safety standards, comprising:
Dependencies are inferred from the claim text.
Drawings are temporarily unavailable. Open the PDF at USPTO
From the US filing history. Foreign family members aren’t listed.
Coupling parts supported only by co-operation with counterpart: intermediate parts for linking two coupling parts, e.g. adapter
Latching means integral with the housing: comprising a single latching arm
Protective earth or shield arrangements on coupling devices , e.g. anti-static shielding: with earth pin, blade or socket
With pins, blades or analogous contacts and secured to apparatus or structure, e.g. to a wall: mounted on directly pluggable apparatus
Term ended 13 Jan 2025 (estimated)
1. Field of Invention
The present invention relates to an electric plug for electrically connecting an electric appliance with an electric socket, and more particularly to an electric plug, wherein a detachable head unit of the electric plug can be selectively interchanged for adapting to different electric sockets with respect to the different standards of the countries.
2. Description of Related Arts
FIG. 1 is an exploded perspective view of an electric plug according to a preferred embodiment of the present invention.
FIG. 2 is a perspective view of a detachable head unit of the electric plug according to the above preferred embodiment of the present invention.
FIGS. 3A to 3D are perspective views of the detachable head unit according to the above preferred embodiment of the present invention, illustrating various types of plugging heads for different safety standards in the world.
Referring to FIG. 1 of the drawings, an electric plug for an electric socket according to a preferred embodiment of the present invention is illustrated, wherein the electric plug comprises a receptacle 10 and at least a detachable head unit 20 detachably mounting to the receptacle 10.
The receptacle 10 comprises a plug housing 11 having an engaging seat 1111, at least two resilient conductors 12 spacedly provided on the engaging seat 1111 of the plug housing 11, a AC circuitry received in the plug housing 11, and an electric cable 13 which is extended from the plug housing 11 and is electrically connected to the resilient conductors 12 through the AC circuitry.
The plug housing 11 comprises an upper casing 111 and a lower casing 112 mounted thereto to form a box-shape structure to receive the AC circuitry between the upper and lower casings 111, 112, wherein the engaging seat 1111 is formed on the upper casing 111 to detachably engage with the detachable head unit 20. Accordingly, the engaging seat 1111 has two sliding grooves 1112 sidewardly formed at two side edges of the engaging seat 1111 respectively and two groove accesses 11121 formed at two sliding grooves 1112 respectively.