PERFEZIONAMENTO NEGLI ELEMENTI DICHIUSURA IN PARTICOLARE PER APERTURE DI CAMERE DI COMBUSTIONE O DI DISTILLAZIONE

摘要

A closure for an opening into a combustion chamber or a distillation chamber which tightly seals said opening. The closure has a central portion with a lip at its periphery having at least one sealing surface thereon. A member adjacent to the opening has a seat portion located out of proximity of said opening which contacts the sealing surface of the lip when the closure is closed. A hinge mechanism mounting the closure adjacent to the opening and permitting removal of the closure from the opening and a locking lever supported adjacent to the opening to force the sealing surface of the lip against the seat portion to seal the opening when the closure is closed. The seal is located out of proximity of a passageway in communication with the opening.