LandOfFree - US Patents - Listing for Valves and valve actuation

Valves and valve actuation – With correlated flow path – With mounting or support

O-ring solenoid valves

Valves and valve actuation – Electrically actuated valve – Remote or follow-up control system for electrical actuator

Object-sensor-based flow-control system employing fiber-optic si

Valves and valve actuation – Rotary valves – Ball valve

Obturator for ball valve

Valves and valve actuation – Rotary valves – Butterfly

Obturator ring for butterfly valve

Valves and valve actuation – Heat or buoyancy motor actuated

Ocean thermal energy conversion valve

Valves and valve actuation – Rotary valves – Seat or interface seal

Off axis rotary valve

Valves and valve actuation – Rotary valves – Butterfly

Offset butterfly valve

Valves and valve actuation – Fluid actuated or retarded – Dashpot or fluid controlled retarder or timer

Oil and gas well safety valve

Valves and valve actuation – With non-fluid retarder

Oil control valve

Valves and valve actuation – Reciprocating valve – Particular head and seat cooperation

Oil drain device for valve spool cap

Valves and valve actuation – With correlated flow path – Valve operated by joining flow path sections

Oil drain plug for oil storage vessel and oil drain device...

Valves and valve actuation – With correlated flow path – Tank

Oil drain valve

Valves and valve actuation – Valve actuator is inlet or outlet – Reciprocating spout

Oil drain valve

Valves and valve actuation – With correlated flow path – Tank

Oil drain valve assembly

Valves and valve actuation – With means for blocking or disabling actuator – Released by non-valving actuator motion

Oil extractor for vehicle engines and the like

Valves and valve actuation – Rotary valves – Ball valve

Oil valve devices for removing used oil from drain pans of vehic

Valves and valve actuation – Fluid actuated or retarded – With mechanical movement between actuator and valve

Oil well safety valve for use with drill pipe

Valves and valve actuation – Fluid actuated or retarded – Piston type expansible chamber reciprocating valve actuator

Oil well safety valve for use with drill pipe

Valves and valve actuation – Rotary valves – Ball valve

Oilfield valve