Welcome to DBL Engineering, LLC. This is also the home of the Boom-Safe Anti-Tip System, the world’s first ACTIVE anti-tip system that virtually eliminates both side- and back-tip hazards of boom-supported lifting machines.

Boom Safety Blog

Welcome, and a little bit about me!

Welcome to the DBL Engineering website! In this post, I’ll introduce myself and describe my background. My name is LeRoy Mietzner, and I’m a degreed Mechanical Engineer and registered Professional Engineer in the State of Washington. After graduating from the University of Washington, I worked for many years designing lifting equipment for a major lift …

About DBL Engineering

DBL Engineering is a full service Mechanical Design Engineering firm specializing in Machinery Design and New Product Development. Contact us for assistance implementing the BSATS device in your product.


DBL Engineering, LLC
4211 210th Pl NE
Sammamish, WA 98074
+1 425-466-5851