Is there such an animal as Lee-Norton earvalves? If so, where can I find out information on these hearing savers? Any help is appreciated. Thanks.
There used to be the Lee Sonic Ear-Valv, which were earplugs with cut off valves. Supposedly you could hear normal sounds with these, but they would shut off to prevent loud sounds from getting to your ears.
I had a set but never really cared for them since they didn’t seem to reduce the sound enough.
I believe Silencio now sells this product as their Super-Sonic Earplugs. See: www.silencio.com. Brownells sells them.
The only Norton that I know of sells abrasives, whetstones, knife sharpening supplies, etc. There is a North Safety Products which makes ear protection devices – see: www.northsafety.com.
Hope this helps!