The
worldgot
How the smallest things make the biggest difference
SCREWED
How
Sealed with a Screw
Due to its threaded nature, the screw and its complementary threaded hole result in a solid joint with effectively no gap. This allows fastened products to enjoy airtightness, which result in higher quality or new functionality. This is exemplified in the revolution of bottle sealing through the screw cap and military weapons through the air tight screw.
Screw Caps
The screw cap revolutionized the delivery of bottled liquids to the consumer. Before the screwcap, the cork was the traditional way of sealing a bottle. The screwcap, due to it’s threading nature, as opposed to the cork’s push in, avoided a loosening of the seal over long periods of time. This prevents contamination of external substances. Experiments conducted with stored wine proved that the taste of wine was better preserved over long periods with the screw cap, due to its guaranteed airtightness.
Specific to bottles, another advantage of the screw cap its exterior seal, which prevent problems of contamination which the cork and the inner bottle neck may cause. Lastly, the manufactured bottle cap avoided the flavoring contamination through oxidation of the naturally produced cork and the wine. Thus, the screw cap changed the way bottles were sealed and provided better tasting and more hygienic bottled drinks for the consumer.
Air Leak Screws
Vacuum leaks/Air leaks occur when two parts in contact have pockets of spaces which allow air or water to pass through. Airtight screws are commonly used for air leak testing procedures in the military. These is commonly coined as the “Airleak screw”, referring to functionality of the airtight screw.
Without such a screw placement in most radio devices, many military radios have to be shipped back and reassembled from scratch for complete restoration of its waterresistivity. With a simple airleak screw, water immersion can easily trace leakage points and a simple swapping of functional parts can be executed for immediate use. Thus, the airleak screw saves the military troubleshooting time and logistical costs. With airleak screws, sensitive internal components can be kept dry through increased durability against the elements from a simple rivercrossing operation or rainfall.
