Apparatus and method for actuating or maintaining a seal by differential pressure

In some embodiments of the invention, there is a method or apparatus for tight sealing between a first space and a second space. The second space is at least partially enclosed by a member. The method or apparatus includes or performs the step of creating or maintaining a pressure difference between...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LAI JON W, LIM BRIAN Y, TOMBLER THOMAS W
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CYLINDERS ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING PIPES PISTONS SEALINGS SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	In some embodiments of the invention, there is a method or apparatus for tight sealing between a first space and a second space. The second space is at least partially enclosed by a member. The method or apparatus includes or performs the step of creating or maintaining a pressure difference between a pressure in a third space at a seal assembly and pressure in each of the first space and the second space; and pushing, caused by the pressure difference, against a seal in the seal assembly to tighten sealing provided by the seal.