The present invention is related to a protective case for stowage of a cnc plasma cutter wherein the plasma cutter can be placed into the protective case in the same orientation as it used. The plasma cutter is securely retained within the protective case by formations on the bottom of the case and on the lid that sandwich and hold the plasma cutter therebetween to prevent its movement within the case. The protective case also has provisions for stowing an accessory box and a plug accessory and which are also securely retained to prevent movement within the protective case.
Plasma cutting is an important tool in any metal fabrication industry. Plasma cutters, or plasma torches, are a way to make clean cuts through metal, often a difficult material to work with. Plasma cutters use high temperatures to achieve these cuts with high accuracy. But plasma-cutting technology isn't as fantastic as it seems. Plasma cutters were first used during World War II. Since then, they've had improvements and upgrades but remain a very effective tool.
A protective case for stowing a plasma cutter having cables extending therefrom, the protective case comprising a base having ends, lateral sides and a bottom forming a chamber, a lid affixed to the base having an open and closed position, the lid having an inner lid surface, the base having an inner bottom surface having a formation configured to receive and securely retain a plasma cutter, the chamber providing a space for stowing cables, the inner lid surface having a formation configured to contact a plasma cutter when positioned within the protective case, wherein a plasma cutter is sandwichable between the formation formed on the inner lid surface and the formation of the inner bottom surface to hold the plasma cutter from movement within the protective case.
The roots of plasma cutting machine first appeared in the American factories that were converted into military aircraft production plants during World War II. This type of welding utilized gas with electrical currents, resulting in welds that were protected from oxidation. In the 1960s, this technique changed so that the gas pressure and flow were increased. The welding temperature became hot enough to melt through metal. This led to the plasma torch, which is how plasma cuts are performed.
The present invention relates generally to plasma cutting systems, and, more particularly, to a protective case for containing a plasma cutter.
Plasma cutting is a process in which an electric arc is used for cutting or gouging a workpiece. The plasma cutter is generally contained within a housing and provides output power to a pair of cables that extend from the plasma cutter apparatus. One of the cables has a torch that is located at the outer end of the cable and the other cable has a work clamp at its outer end that is adapted to be attached to the workpiece.
A cnc plasma cutting machine works by forcing gas through a narrow opening and then putting an electric current through it. The gas can be oxygen, nitrogen or air, but the temperatures superheat the fuel into plasma, which is a completely different state of matter. While the plasma gas cuts into metal, another gas acts as a shielding gas to protect the cut.
Other cutting tools besides plasma cutters include high-definition plasma and lasers. Plasma is regarded as cheaper than the other two and can cut nonferrous, or noniron, metals as well as steel. In terms of speed, plasma is the fastest, and lasers are the slowest. However, laser cutting is regarded as the most accurate, able to achieve high-precision cuts. Plasma-cutting produces a bevel, which is noticeable in smaller holes, but less noticeable in thinner materials.
The plasma cutter apparatus is designed to be a portable unit, that is, the plasma cutter can be carried by a person from location to location. Basically, the new inverter based plasma cutters now achieve the portability of other industrial power tools. With such portability, however, there is an increased risk of damage to the plasma cutter manufacturer which increases the importance of protection in transport and storage.
Plasma cutting can be used by many kinds of workers in a variety of conditions. In the auto industry, plasma cutters are used to cut out parts and shapes. In heavier industries, it is used to slice through large sheets of metal. As a handheld tool, it can be useful in auto shops or by locksmiths when a bore needs to be made. Computer numerically controlled (CNC) machines allow workers to arrange shapes using a computer screen, which the plasma cutting device will then follow and automatically cut.
While there are protective cases used among highly portable power tools, such as drills, saws and the like, at the present, protective cases are not widely used with plasma cutters. Protective cases have also been used on portable welding equipment, however, these protective cases for that purpose require manipulation of the power source from a natural vertical position to a horizontal position. In addition, the weld and ground cables for such welding equipment must be detached from the power source and be deliberately arranged in a specific manner into a storage position.
With a plasma cutter supplier , the reorientation of the cutter is made more difficult by the comparative size, weight and amount of cabling that needs to be manipulated, as compared with standard power tools.
Accordingly, it would be advantageous to have a protective case that requires little, if any, cable and power source manipulation in order stow the plasma cutter therein. In addition, it would be advantageous to have a protective case that requires minimal power source and cable manipulation for stowage in the protective case, while closely matching the aspect ratio of the plasma cutter to maximize space efficiency. Because plasma cutting machines have become smaller and more affordable, artists can more easily use metal as a medium for art. Two tools that also make this possible are handheld tools and CNC machines. They allow artists to make fine, detailed cuts and lines similar to a paintbrush.