Photography – With object illumination for exposure – With power supply detail
Reexamination Certificate
1998-12-01
2001-09-11
Mahoney, Christopher E. (Department: 2851)
Photography
With object illumination for exposure
With power supply detail
C396S301000, C307S150000
Reexamination Certificate
active
06289179
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention is related to an improved power supplying device for flashes.
2. Description of the Prior Art
In the art of photography, artificial light is commonly used to illuminate an object to be photographed. One form of artificial light which is now widely used is that produced by the so-called electric flash device. However, such flash device is usually powered by four No.
3
batteries and consumes a lot of electric power so that when the batteries run down, they have to be disposed thereby wasting money and causing pollution to the environment. Furthermore, when the power of the batteries is below a certain level, the charging speed of the flash will become slow thus requiring it to wait for the charge of the flash and often missing the chance to take a snapshot. Hence, a storage battery has been proposed to supply power to the flash, but such a storage battery is bulky in volume and inconvenient to carry and requires a lengthy conducting wire to connect the battery to the flash which will often trip up someone.
Therefore, it is an object of the present invention to provide an improved power supplying device for flashes which can obviate and mitigate the above-mentioned drawbacks.
SUMMARY OF THE INVENTION
This invention is related to a power supplying device for flashes.
According to a preferred embodiment of the present invention, a power supplying device for flashes includes a base having a bottom formed with two opposite grooves, a threaded hole vertically extending therethrough, and two threaded holes, at least a rechargeable battery having a top provided with two conducting terminals and a protuberance, an extension cord provided at one end with a plug engageable with a power socket of the battery and at another end with a socket, and a power cord having an end provided with a plug engageable with the socket of the extension cord and another end provided with a positive and negative wires each provided with a metal conductor, one of the wires having a buzzer, a circuit protecting switch and a metal conductor which are fitted within a cylinder with the metal conductor partially projected out of an end of the cylinder, another one of said wires being provided at an end with a metal conductor which is fitted within another cylinder and partially extends out of the cylinder.
It is the primary object of the present invention to provide a power supplying device for flashes which can be easily mounted on the camera platform of a camera.
It is another object of the present invention to provide a power supplying device for flashes which is convenient to use.
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: 5151727 (1992-09-01), Sasaki
patent: 5164761 (1992-11-01), Isono et al.
patent: 5630193 (1997-05-01), Miyake et al.
A & J
Mahoney Christopher E.
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