Dual non-contacting mechanical face seal having concentric...
Dual operating mode seal assembly
Dual pressure balanced noncontacting finger seal
Dual purpose low insertion force gasket
Dual ring piston-ring system with spring ring bias means
Dual seal
Dual seal assembly
Dual seal assembly
Dual seal assembly
Dual seal barrier fluid leakage control method
Dual seal barrier fluid leakage control method utilizing linearl
Dual seal gasket
Dual seal with clean barrier fluid and dynamic pressure control
Dual sealing ring seal with hydraulic expansion
Dual spring expander for oil control piston rings
Dual valve stem packing arrangement
Dual-contact brush seal
Dual-lip grease-retaining and dirt-excluding shaft seal
Dual-lip shaft seal with one spring-urged lip
Dual-material self-bonding lip seal