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2. Child-resistant packaging - Wikipedia

   en.wikipedia.org/wiki/Child-resistant_packaging

   The child-resistant locking closure for containers was invented in 1967 by Dr. Henri Breault. [7]A history of accidents involving children opening household packaging and ingesting the contents led the United States Congress to pass the Poison Prevention Packaging Act of 1970, authored by U.S. Senator Frank E. Moss of Utah.

3. Bear-resistant food storage container - Wikipedia

   en.wikipedia.org/wiki/Bear-resistant_food...

   Bear-resistant food storage containers, also called bear canisters or bear cans, are usually hard-sided containers used by backpackers to protect their food from theft by bears. Bear canisters are seeing increased popularity in areas where bears have become habituated to human presence, and are required [ 1 ] in some places, such as Yosemite ...

4. Burial vault (enclosure) - Wikipedia

   en.wikipedia.org/wiki/Burial_vault_(enclosure)

   A burial vault (also known as a burial liner, grave vault, and grave liner) is a container, formerly made of wood or brick but more often today made of metal or concrete, that encloses a coffin to help prevent a grave from sinking. Wooden coffins (or caskets) decompose, and often the weight of earth on top of the coffin, or the passage of heavy ...

5. Double seam - Wikipedia

   en.wikipedia.org/wiki/Double_seam

   Incorrect (left) and correct (right) seams. The production of a high-quality double seam is dependent on several factors, including conformity to the set can and end specifications, the quality of the seamer tooling used and its compliance with the can and end being used, the condition of the seaming machine and the setup of the seaming rolls, lifter pressure and other components.

6. Refrigerated container - Wikipedia

   en.wikipedia.org/wiki/Refrigerated_container

   The container is cooled for as long as there is frozen gas available in the system. These have been used in railcars for many years, providing up to 17 days temperature regulation. [4] Whilst refrigerated containers are not common for air transport, total loss dry ice systems are usually used. [3]

7. Caisson (engineering) - Wikipedia

   en.wikipedia.org/wiki/Caisson_(engineering)

   Schematic cross section of a pressurized caisson. In geotechnical engineering, a caisson (/ ˈ k eɪ s ən,-s ɒ n /; borrowed from French caisson 'box', from Italian cassone 'large box', an augmentative of cassa) is a watertight retaining structure [1] used, for example, to work on the foundations of a bridge pier, for the construction of a concrete dam, [2] or for the repair of ships.