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An air mattress, also known as an airbed or a blow-up bed, [2] is an inflatable mattress made of polyvinyl chloride (PVC) or textile-reinforced urethane plastic or rubber. The deflated mattress can be compacted and carried or stored in a small form. They are inflated by blowing into a valve, either with a manual or an electric pump. Some are ...
A vacuum mattress consists of a sealed air-tight (typically polymer) bag enclosing small beads (typically polystyrene balls) and fitted with one or more valves. While at ambient air pressure, the beads free to move, but when the mattress has been moulded and the air evacuated, external atmospheric pressure locks the beads in place ( jamming ...
Centrifugal pumps with an internal suction stage such as water-jet pumps or side-channel pumps are also classified as self-priming pumps. [10] Self-Priming centrifugal pumps were invented in 1935. One of the first companies to market a self-priming centrifugal pump was American Marsh in 1938. [citation needed] Centrifugal pumps that are not ...
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Some of the biggest lenders in the US are beating a retreat from a UN-backed bank climate group in the final weeks before a new Trump administration prepares to take office.
People with high blood pressure who slept for shorter durations were more likely to show poor cognitive function and increased levels of markers of brain aging and injury, a new study has found.
The Ashley HomeStore chain of furniture stores is composed of corporate owned stores and independently owned stores with licenses to sell Ashley Furniture products exclusively, including mattresses and accessories. There are over 1000 Ashley Furniture HomeStore retail furniture stores operating worldwide in more than 123 countries.