Re: Larue Suppressor
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: RollingThunder51</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: cmdecker</div><div class="ubbcode-body">Looks like they copied tube profile of AAC TiRants and Element. </div></div>
Which was a profile rip-off of the AWC's Jupitor's Eye and Nexus.
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Werbell did it on the Sionics M14 and M16 cans built for the Army in the 60's. I'm sure he probably wasn't the first, but he predates both of the other companies here.
The step is simply a method of obtaining higher strength at lighter weight in thread assembled suppressors- if the thread is .025" a side deep and the thread form creates stress risers, you add .030-.04" per side at the threads and successfully achieve greater strength at the threads without too much additional weight.
It is legal to use ideas that are not patented. It is legal to use even patented ideas after patents expire. If this was not the case, AAC, and AWC would not be able to manufacture silencers, because Hiram Maxim invented the product.
I once worked at a rather large lighting industry company in the engineering department, and the pace of technology was fueled by a constant comparison of their product against competing products. No doubt the competition was looking at our product line just as closely as the companies attempted constantly to one up each other. I feel the suppressor industry and every industry in manufacturing will share that characteristic. LaRue obviously was looking at ARMS mounts, and AAC was obviously looking at Sionics and AWC cans (among other brands).
<span style="text-decoration: underline">In fact the same parallel can be drawn of Werbell and Sionics.</span> The spiral diffusers were a poorly reconstructed resemblance of the William Delisle created, preceding counterpart found in the design of the DeLisle comando carbine that Werbell had operationally used in World War II. The Delisle diffusers were also faithfully replicated in the 1953 Patchett/Sterling L34A1.
The Sionics style diffuser had a monolithic internal featuring a center ported round bar with deep lathe turned helical grooves leaving thick helical fins, where the Delisle and L34A1 Sterling baffles were thin, stamped washers that were cut through on one side, bent two ways, and platter assembled using rods inserted through holes in the washers. Once assembled they resembled the helical fins of the Sionics internal. The British baffles were more effective with respect to allowing gas to flow and economy of gas volume, where the greater mass, small holes and cylinder bore of the sionics device didn't encourage the same performance.
The low performance of the Sionics design may have also had something to do with the fact that the other firearms featuring sprial diffusers fired subsonic projectiles and used the diffusers as a second stage in integral suppressor designs.