Seal assembly with means for detecting seal failure

Details Seal assembly with means for detecting seal failure Seal assembly with means for detecting seal failure

2006-06-06

2006-06-06

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Fluid pressure gauge

C277S355000

Reexamination Certificate

active

07055390

ABSTRACT:
A seal assembly includes a first body and a second body. A primary seal is disposed between the first body and the second body. A secondary seal is disposed between the first body and the second body in spaced relation to the primary seal. A pressure port extends through one of the first body and the second body between the primary seal and the secondary seal. A pressure sensor is provided for detecting a pressure increase within the pressure port, thereby indicating a failure of the primary seal.

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patent: 2004/0055646 (2004-03-01), Robinson et al.
patent: 2004/0083818 (2004-05-01), Foote et al.

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