Patent Application
20060199519
1. Field of the Invention
The present invention relates to a pressurized air-filter container, and more particularly to a structure by utilizing an electric fan that continuously draw-in air to create constant air flow within a body container for an extended period of time to prevent exterior dust particles from entering the body container and being accumulated on the surface of the lens therewithin. This invention provides a simple and economical solution to extend the usage life of the lens within the body container and is applicable to use in all types of laser engraving machines.
2. Description of the Prior Art
Laser cutting and engraving process is applicable to a wide spectrum of applications and is extensively used today. Its advantages include high precision, efficiency, reliability, and ease of control. Furthermore, it does not damage the work piece and yields high quality of finished product.
The conventional laser engraver is designed to refract a laser beam with a lens stand positioned within a dustproof container adjacent to the laser tube. However, after an extended period of use and continuous shaking caused by use, exterior dust particles will enter in through the external openings of the container and accumulate thereon the surface of the lens within the container. To ensure proper functioning of the device, the user needs to halt the engraving process at frequent intervals to dismantle and clean the lens within the container. To avoid such troublesome and time-consuming works, other conventional structure is to use an air compressor to channel air into the container via a tube to prevent exterior dust particles from accumulating on the surface of the lens therein.
Although the method used in the latter structure can overcome the issue of dust accumulation on the lens surface, it requires the installation of an air compressor each time prior to initiating the engraving process. And the air compressor itself is complex, large in size, and costly which is mainly designed for multi-functional uses, using it for only to solve the above problems seems not economical.
In view of the above flaws, the inventor has studied and developed a pressurized air-filter container to solve the present technological issues.
The primary objective of the present invention is to provide a self-contained, simple, economical, and convenient pressurized air-filter container and it can prevent exterior dust particles from accumulating on the lens surface therewithin the container to extend the usage life of the lens.
To achieve the above objective, the present invention comprises a body container, an electric fan and at least one lens stand disposed within the body container for mounting a lens thereon. An air inlet and air outlet is each located on lateral sides of the body container, and an electric fan, mounted around the air inlet to allow the air outside the body container being drawn into the body container and then exhale out through the air outlet to prevent exterior dust particles from accumulating thereon the lens surface.
The description of the disclosure will be more apparent with the accompanying drawings, which show, for purposes of illustration only, a preferred embodiment in accordance with the present invention.
As illustrated in
The body container 11 is in the form of an L, within which disposed a lens stand 111 (this embodiment exemplifies with 3 sets of lens stands) for respectively mounting lens 112 thereon. An air outlet 114 is located on the top of the body container 11, while an air inlet 113 is located on lateral side therebelow to allow air to flow and circulate therewithin the body container 11. An electric fan 12 is mounted around the air inlet 113, which is located on the lateral side of the body container 11.
By this means, air draws into the body container 11 via the electric fan 12 and then exhales out through the air outlet 114 to prevent exterior dust particles from accumulating on the surface of the lens 112.
While In use as shown in FIGS. 2˜4, the electric fan 12 is firstly mounted therearound the air inlet 113 located on the side of the body container 11. Secondly, the body container 11 is attached with the laser tube 2 of a laser engraver to make laser beam being refracted by the lens 112 mounted on top of sets of lens stands 111 within the body container 1. The electric fan 12 operates simultaneously to ensure that air outside is drawn into the body container 11 and then exhale through the air outlet 114 to prevent exterior dust particles from entering via the air outlet 114 and accumulating on the surface of the lens 112.
In addition, as illustrated in
Upon utilizing the above disclosed, the usage life of the lens 112 can be extended by preventing exterior dust particles from entering the body container 11 and accumulating thereon the lens 112 within the body container 11. Furthermore, attaching the fan 12 with the body container 11 not only simplifies the structure of the present invention for easy assembly and disassembly, but also effectively lowers its production cost, hence, making it more economical.
In sum, the present invention can indeed achieve its anticipated objective and provide a simple, convenient, and low cost embodiment of a pressurized air-filter container. While we have shown and described the embodiment in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.
