Illumination – With switch plate or socket
Reexamination Certificate
1999-12-09
2001-08-14
Sember, Thomas M. (Department: 2875)
Illumination
With switch plate or socket
C362S276000, C362S368000, C362S431000, C362S253000, C362S458000, C439S093000, C361S643000, C361S658000, C174S058000
Reexamination Certificate
active
06273578
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a Removable socket stand for extension wires for use in outdoor garden and lawn, wherein a conical sustainer is provided at the bottom of the main body of the socket stand so as to temporally fix the socket stand on the ground of garden and lawn, and a plurality of elements for ensuring electrical security and lighting in the dark are also provided thereof
2. Description of the Prior Art
As it can be used to supplement inadequate installation of sockets in a residence, factory, or the like, a removable socket stand for extension wires is widely employable. It is really convenient for a socket or sockets to be removable here and there, indoor or outdoor in any desired places where electric power is required. But there arises a problem that electrical security can not be ensured as the socket stand is removed by pulling the extension wires around outdoor wet or muddy environments in stead of installing it firmly and securely on the safety place. As a result, there have been too many deplorable accidental cases arisen from careless handling of such removable socket stands by ordinary citizens.
In order to solve the problems inherent to the conventional technique described above, researches and developments have been carried out for a long time, and finally the inventor comes to realization of the present invention which will now be disclosed hereinafter.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a removable socket stand for extension wires which can be sustained on the ground with a proper height thereabove to keep away from the puddles of the saturated field such that the user may securely use electricity without the fear of being electrocuted.
It is another object of the present invention to provide a removable socket stand for extension wires having an insulated transparent cover to protect a main switch of the socket stand so as to ensure water tightness of the main switch and protect the user's safety. In addition, a shielded cover is also provided for individual sockets so that the Sockets can be shielded in case they are not in use thereby protecting possible injury to a third person who touches them, or infringement of foreign substances.
It is still another object of the present invention to provide a photo emission equipment in the main body of the socket stand, which, when being placed in a dark place, where a photo sensor installed thereat can not detect light, a photo emission element starts to emit light and through focusing effect of a light focusing plate disposed on the main body, the brightness of light is intensified such that the user is able to identify the socket position in the dark and facilitate his/her night work.
To achieve these and other objects, the socket stand of the present invention comprises a main body, a
shaped (inversely U shaped) pull lever, a photo emission equipment with light focusing plate and a conical sustainer. The main body of the socket stand further consists of a front case and a rear case with a groove formed along each bonding side edge of the two cases. A sliding portion at each lower end of the
shaped pull lever is fitted in the groove and is slidable therein when the two cases are combined with each other. A semi-circular recessed slot having screw threads on its inner surface is formed at the respective bottom of each of the two cases for screw combining with the conical sustainer. A opening is formed at the surface of the rear case for fastening the light focusing plate. A circular hole is provided above the opening for exposedly mounting a photo sensor thereon. The main switch is mounted on another opening formed on the surface of the front case and protected by an insulated transparent cover so as to ensure both water tightness and reliable electrical insulation. The socket is also protected by a shielding cover so that the socket can be shielded at the time it is not in use thereby protecting possible injury to a third person or infringement of foreign substances. The photo emission equipment which including a photo emission element and the above mentioned photo sensor, is located at the back of the surface where the main switch and the sockets are disposed. When the front and the rear cases are fitted with each other, the photo emission element aligns with the light focusing plate mounted on the surface of the rear case thereby intensifying the brightness of light. The conical sustainer is used to fix the socket stand on the ground.
REFERENCES:
patent: 2219650 (1940-10-01), Stewart
patent: 4113334 (1978-09-01), Instone
patent: 4343032 (1982-08-01), Schwartz
patent: 4493515 (1985-01-01), Banks
patent: 4717350 (1988-01-01), Lax
patent: 5003441 (1991-03-01), Crowe et al.
patent: 5062028 (1991-10-01), Frost et al.
patent: 5065291 (1991-11-01), Frost et al.
patent: 5708554 (1998-01-01), Liner
Bacon & Thomas PLLC
Negron Ismael
Sember Thomas M.
LandOfFree
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