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"Backpack sprayers for agriculture are the biggest application currently, but the inventor wants to expand applications to food and pharmaceutical," says Richardson. "Being an engineer myself, I saw that the potential uses were very broad. Plant managers and engineers always want to tweak a valve, but because this has a pre-set pressure, it becomes tamper proof."The first application in the beverage arena is likely to be foodservice. Vendors are notorious for altering the syrup/carbonated water ratios in drink dispensers, a practice that manufacturers abhor.

As the marketing manager for a power tool company, I''m often asked about the difference between hammer drills and rotary hammers. Buyers want to know why there''s such a price difference between the two, and which tool is best suited for specific applications.I advise users to answer four questions before making the choice: What material will you usually be drilling? How large will the holes be? Will you be drilling an occasional hole or for extended periods? Finally, will you only be drilling, or would it also be useful to be able to use the tool in chipping, usedscooters or hammer-only, mode?

In a hammer drill, the hammering action is provided by spinning disk. The toothed disks rotate against each other, causing the bit to move in and out at more than 40,000 blows per minute.[ILLUSTRATION OMITTED]Although rotary hammers deliver fewer blows per minute, they provide about five times the impact force of a hammer drill. A pneumatic piston powers the striker that transfers impact to the bit. This design reduces operator fatigue and makes drilling more efficient. Unlike the more versatile hammer drill, though, a rotary hammer can''t be used for drilling wood or metal.