A gasket or sealing ring, made from either rubber or silicone, forms a gas-tight seal that does not allow air or steam to escape between the lid and pan.
12.
Glass taper joints can be sealed hermetically with PTFE sealing rings, . o-rings ( optionally encapsulated o-rings ), or PTFE sleeves, sometimes used instead of grease that can dissolve into contamination.
13.
These include : ( A ) those using a zinc cap and a rubber jar ring, and ( B ) those using a glass lid, wire bail, and rubber sealing ring.
14.
:Carbon-graphite impregnated epoxy resin sealing rings are widely used in industry and the epoxy breaks down around 350 deg . . . and a few degrees less if it is wet heat.
15.
They are sealed by the pressure of the gas, as the pressure rises, a slackly threaded cap presses up against a sealing ring which is screwed down with another cap, thus making an airtight seal.
16.
By 1874 the licence was free to bottle manufacturers as long as they purchased the marbles, sealing rings and used his groove tool, and the mineral water firms they traded with had already bought a licence to use his bottle.
17.
The Court of Appeals for the Federal Circuit overturned the jury award, holding that Festo, which had won its patent by narrowing the descriptions of the sealing rings and sleeve, could not claim that the Japanese firm committed patent infringement for using variations that had been expressly eliminated from the design.
18.
But one has to be careful with side electrode welded joint while repeated re-adjusting gap between electrodes because of metal fatique, since loosen part of the side electrode in cylinder chamber will result immediate ignition malfunction and almost certainly result in serious damage of special surface-treated cylinder walls or piston sealing rings.
19.
Disassembled zinc chloride cell ( similar to zinc carbon cell ) . 1 : entire cell, 2 : steel casing, 3 : zinc negative electrode, 4 : carbon rod, 5 : positive electrode ( Manganese dioxide mixed with carbon powder and electrolyte ), 6 : paper separator, 7 : polyethylene leak proof isolation, 8 : sealing rings, 9-negative terminal, 10-positive terminal ( originally connected to carbon rod)
