When GRS introduced the new GraverMax SC in late 2005, it chose to keep the name GraverMax and added the suffix SC to differentiate it from the original design.
This helped continue customer recognition of the name, GraverMax, but somewhat hid the fact that this was a new tool with significant advancements “inside the box”.
What does this new patent mean to the engravers, jewelers and other working artists who use this equipment? It clearly establishes the GraverMax SC (and related GraverMach) as new technology. In order for an invention to be patented, it must include new and useful innovation; nothing can be patented that already exists.
During examination, the U.S. Patent Office not only reviewed the original GraverMax design (which was patented in 1987), but included competing air impact tools as well.
What is new about a machine that first appears to work a lot like its predecessor? The details are technical, but it’s mainly about the air pulses that are delivered to the impact handpiece.
The new design creates air pulses that are not only stronger, but crisper. This provides better control overall, especially as the user starts the handpiece.
And, the new air pulsing circuit allows the handpieces to work at both slower and faster impact rates than before.
Why replace the old GraverMax? Many still use the original GraverMax because it continues to perform well after years of work. But, because the new model delivers greater control, more range of power and is virtually silent in operation, it’s somewhat like the difference between operating a new car compared to one twenty years old.
An interesting observation: GRS instructors who have taught classes using both the original GraverMax and the new GraverMach/GraverMax SC observe that beginners learn to engrave noticeably faster using the new machines.
The number of new design features submitted to the U.S. Patent Office was so large that they required the original patent application split into three separate applications.
This patent, US 7,413,027, is the first; a second application is already under examination with a third under consideration. So, there is truly a lot of new technology in these new machines. Why not update your bench and enjoy the differences?