F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
251/19
F16K 17/02 (2006.01) F27D 1/18 (2006.01) F27D 17/00 (2006.01)
Patent
CA 1290309
Abstract: A valve assembly has a valve lid assembly which can be fitted in sealing relation on a valve seat, an over-centre device can serve to force the lid on to the seat; a drive shaft connected to the lid assembly and drive means for rotating the shaft to open and close the valve seat, the over-centre device serving to oppose rotation of the shaft up to a critical position whereupon the device assists in rotation of the shaft to open the valve seat,
563830
Davy Mckee (stockton) Limited
Rogers & Scott
Stamp George W.
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