Cock comprising indexable rotating key

Control valve with improved centering and detent mechanisms

Deflation valve for blood pressure measuring device

Detent mechanism for a fluid control valve

Detent mechanism for fluid flow control valve

Detents for locking movable elements

Discharge valve for granular materials

Dual snap action for valves

Faucet valve assembly with friction drag

Fluid-flow valves

Fuel shut-off valve

Magnetic detent for a control valve

Mechanical detent

Metal diaphragm valve with lock mechanism

Mixing faucet rotary brake

Multi-function operator for control valve device

Multi-way cock

Ramped stem extender

Rotary valve with spring clutch

Sleeve valve and method for its assembly