Alabama Patent of the Month – September 2023

Innovation in security and protection is crucial, driven by the need to ensure the safety of individuals and assets. One remarkable advancement in this area is the creation of an Attack, Ballistic, and Blast Resistant Door, which not only offers top-tier protection but also introduces an array of cutting-edge features that make it a game-changer in the world of security.

Imagine a door that can withstand forced entry attempts, ballistic attacks, and even blasts while seamlessly integrating into the aesthetics of any building. This invention, pioneered by Norshield Security Products, LLC (Norshield Architectural Security Products), has revolutionized the concept of security doors.

At the heart of this invention are concealed mortised bolt lock assemblies, each with a biased bolt. What sets this door apart is the ingenious use of a roller assembly and an engageable brake mechanism. When you open the door, the brake holds all the interconnected biased bolts in retraction, allowing for smooth, one-hand operation.

But the innovation doesn’t stop there. As you close the door, a roller assembly moves towards it, automatically releasing the brake and allowing the biased bolts to extend into concealed strike receivers within the door frame. This design ensures the door is securely locked without any visible latches or exposed hardware.

What’s truly remarkable is the manual adjustability of the system. A ramp cut out on the strike plate cover enables precise control over the release point, preventing the bolts from prematurely engaging. This level of customization is vital to ensure the door’s effectiveness in various scenarios, such as forced entry resistance, fire door applications, and protection against air blasts and ballistics.

The four-point concealed locking mechanism, activated by a single lever, offers unprecedented security. Two ⅝” x ⅝” machined stainless steel bolts and two ⅝” x 1″ machined stainless steel bolts engage with an armored steel strike cover plate and strike plate concealed within the door frame. The adjustable strike receiver allows for fine-tuning, ensuring a perfect fit and maximum security.

This door’s capabilities extend beyond security; it’s also adaptable to your architectural needs. Whether you’re building a new structure or preserving the aesthetics of a historical building, this door provides unparalleled flexibility.

Are you developing new technology for an existing application? Did you know your development work could be eligible for the R&D Tax Credit and you can receive up to 14% back on your expenses? Even if your development isn’t successful your work may still qualify for R&D credits (i.e. you don’t need to have a patent to qualify). To find out more, please contact a Swanson Reed R&D Specialist today or check out our free online eligibility test.

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