Level Tool Vial Mounting with Interference Fit Plugs

The patent employs a hollow frame body constructed from high-strength materials such as aluminum alloy or steel, which provides both durability and resistance to damage while maintaining manufacturing simplicity. The use of composite or alloy materials allows the hollow structure to achieve the necessary strength without requiring a solid body design.

The patent removes the plastic insert component entirely and instead provides vial mounting assemblies that are integrally formed with or directly attached to the hollow frame body. This eliminates the dislodging issue while maintaining assembly simplicity through direct attachment methods such as adhesives, mechanical fasteners, or integral construction.

The patent applies the treated outer surface finish selectively to specific regions of the hollow frame body, excluding the areas surrounding the vial openings and the line of sight to the vials. This localized application maintains durability and aesthetics on the outer surfaces while preserving clear visibility of the vials through the openings.

The patent eliminates the need for silicone, wax, or glue by designing the passageways with built-in features that prevent vial migration. These features may include tapered passageways, mechanical retention elements, or interference-fit configurations that secure the vials through the passageways without requiring additional sealing materials.