Maryland's Defense Patent Database

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Seal integrity detection system

Patent image
NSWCCD

A seal integrity verification system scans for changes in impedance in a seal with integral coaxial waveguide, twisted pair wires, parallel ribbon wires or parallel wires. The wires are monitored by a TDR to note changes in impedance. The changes indicate the location where the seal is not under proper compression to ensure a tight fit. This is especially useful in verifying that watertight doors on ships or submarines are sealing properly when shut.

Inventors: 
Mastro, Stephen A.; Overby, John K.
Patent Number: 
Technical domain: 
Handling and Transportation
FIle Date: 
2003-09-05
Grant Date: 
2006-12-26
Grant time: 
1,208 days
Grant time percentile rank: 
22
Claim count percentile rank: 
3
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US NAVY