Electrical connectors – Screw coupling part engaged or disengaged without rotary motion – Having radially movable thread means
Reexamination Certificate
2000-04-04
2001-05-01
Nguyen, Khiem (Department: 2839)
Electrical connectors
Screw coupling part engaged or disengaged without rotary motion
Having radially movable thread means
C439S414000
Reexamination Certificate
active
06224410
ABSTRACT:
BACKGROUND OF THE INVENTION
a) Technical Field of the Invention
The present invention relates to a structure of a copper head socket for a light bulb, and in particular, a socket which allows the repeatedly urging of the socket by an electrical bulb to load and/or unload the bulb into the socket or remove the bulb from the socket
b) Description of the Prior Art
Conventional copper head socket for light bulb essentially comprises a base seat which is used to mount onto a wall of lighting fixtures and a threaded base seat which can form into a loop with a power source wire and is used to hold the copper head of the light bulb. This type of socket has the following drawbacks: when unloading the bulb or unscrew the copper head of the light bulb, the bulb is rotated counter-clockwise but the hands have to hold the bulb as we have no idea whether the bulb has been fully dislocated from the threaded base seat. The hands may not be removed from the bulb as the bulb may be fallen if the copper head of the bulb has fully disengaged with the socket. Another drawback is that the applied external force to unscrew the bulb may break the glass of the electrical bulb as a stronger force may have to apply to unscrew the bulb for some bulbs may be adhered strongly to the socket. For instance, the bulb which has been loaded to the socket for numbers of years. Thus it is imperatively for the inventor to solve the above drawbacks by providing a structure of a copper head socket for light bulb which can be easily and conveniently loaded into and/or unloaded from the socket.
SUMMARY OF THE INVENTION
Accordingly, an object of the present invention is to provide to a copper head socket for light bulb comprising (a) a base seat having an open end and another end having a cylindrical shape center shaft hole; (b) a connection seat which is a hollow cylinder; (c) a threaded base seat including two corresponding member hingedly mounted together at one end to grip the copper cap of the light bulb and the other end of the threaded seat being a center aperture; (d) a press-stopping; and (e) a hole cap. In accordance with the present invention a copper capped electrical light bulb can repeatedly urge the socket so that the loading and/or unloading of a light bulb can be achieved easily and conveniently.
A further object of the present invention is to provide A copper head socket for light bulb comprising (a) a base seat, which can be mounted onto a wall or other lighting fixtures, having an open end and another end having a cylindrical shape center shaft hole, the inner bottom edge of the hole being provided with a blocking edge and the wall surface of the hole being formed into a plurality of deep and shallow slots by means of a plurality of protruded rails; (b) a connection seat which is a hollow cylinder having one end connected to the open end of the base seat and the inner bottom end of another end being provided with a blocking edge and a pair of protruded arch-shaped block; (c) a threaded base seat including two corresponding member hingedly mounted together at one end to grip the copper cap of the light bulb when the light bulb is inserted into the threaded base seat, the other end of the threaded seat being a center aperture with a threaded seat body; (d) a press-stopping mechanism having a press rod, a rotating peg inserted into the top end of the press rod, and a spring mounted at the top section of the rotating peg, wherein the press rod is a hollow shaft body and the top end of the shaft body has eight rows of positioning teeth which can slide within the shaft hole of the rotating peg, the middle section of the shaft body is provided with four rows of stopping teeth and the bottom section of the shaft body is inserted at the top end of the press rod, and the spring is restricted in between the hole edge of the top end of the rotating peg and the shaft hole of the base seat such that the rotating peg and the press rod maintain an elastic pressure; and (e) a hole cap which covers the shaft hole of the base seat and providing passage for wires of a power source.
Yet another object of the present invention is to provide a copper head socket for light bulb, wherein the positive wire end of the power source passes the hole cap, the rotating peg, the press rod in sequence and is welded at the outlet at the bottom end of the press rod; and the negative wire end passes through the base seat and is welded at the threaded base seat to form a loop.
The foregoing objects and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts. Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.
REFERENCES:
patent: 1770377 (1930-07-01), Wolfe
patent: 4548449 (1985-10-01), Corsetti
patent: 6033248 (2000-03-01), Lyons
A & J
Nguyen Khiem
Nguyen Son V.
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