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A pressure balance and temperature compensation chamber for the shaft seal on a submersible electric motor is described. A chamber between two shaft seals has a flexible element for temperature compensation. A non-return valve allows fluid to be expelled from the chamber but not enter. A compensating element compensates pressure across the second shaft seal. Redundant seal components are also included.
๐ SIMILAR VOLUMES
cylinder body. The metal gasket comprises a pair of elastic metal-plates provided with first bore holes formed correspondingly to the cylinder bores, and beads formed along the circumferences of the first bore holes, and a shim member provided with second bore holes opposed to the first bore holes,
This patent describes a seal for the boot of a CV rotary joint. A series of axial fingers from the joint can energize the seal lip to open the seal during rotation, to allow venting of the joint.
## Patents Seal for an appliance Applicant: Bristol-Myers Squibb Co, USA Inflatable seals for rectal appliances are described in these two patents.