Fissler Gmbh

Joachim Neef

Arnold Thelen

Benjamin Heidrich

Heiko Müller

A pressure vessel includes a pot-like receptacle and a lid for placing thereon, the two being detachably locked together and including a circumferential sealing ring made of elastically yielding material which is located in the region of a circular edge of the lid and a circular edge of the pot for the purpose of sealing the interior against a drop in pressure. Sealing lips of the sealing ring come into close contact with the edge of the lid and the edge of the receptacle, in which case, for producing an automatic pressure-control mechanism, the sealing ring is formed over at least one portion of its circumference in such a way that it is deformed, under a pressure inside the vessel which exceeds a given value (response pressure), so as to form a venting gap between the receptacle and the lid.

Pressure vessel

The invention relates to a valve unit for a pressure vessel, the latter consisting of a receptacle and a lid which can be placed on said receptacle in such a way as to make it pressure-tight and said valve unit including: a safety function, pressure-relief function and pressure indicator function; adjustable indicator levels and pressure levels; an indicator pin () or indicator piston () which is supported against an indicator spring (), can move in axial direction and bears on its portion becoming visible upon pressurization, due to its emergence from a valve housing (), indicator rings, for example, for indicating the pressure inside the vessel; and comprising a valve body () which is movable in axial direction against the action of an exhaust steam spring () and, in the closed position, rests against a seal seat (), lifting off from this, when a given pressure inside the vessel is exceeded, to uncover a pressure-relief aperture (), in which case both the indicator spring () and the exhaust steam spring () are braced in the same direction against a common, axially adjustable pressure member ().

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Herrstein, Germany

Joachim Neef