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7395708 |
Flow measuring apparatus including a piston movable in the flow barrel
A flow measuring apparatus of an embodiment is provided that comprises a cylinder and a piston movable in the cylinder between first and second positions. The piston divides the cylinder's interior...
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7363938 |
Constant flow valve assembly
A dual valve assembly includes two regulating valves. Each valve includes an outer housing comprised of a cap joined to a base. The housing is internally subdivided by a barrier wall into a head...
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7128086 |
Flow control valves
In one embodiment, a flow control valve includes a valve body having an inlet, an outlet, a flow passageway coupling the inlet to the outlet, and a cavity with first and second chambers. The valve...
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6932107 |
Flow control valves
In one embodiment, a flow control valve includes a valve body having an inlet, an outlet, a flow passageway coupling the inlet to the outlet, and a cavity with first and second chambers. The valve...
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6892755 |
Pressure regulator for infusor
An improved ambulatory infusion device for dispensing a fluid into a patient includes a flexible bladder enclosure having a first open end a closed second end. The closed second end of the sheath...
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6688319 |
Flow regulating control valve and method for regulating fluid flow
According to one aspect of the invention, a fluid regulating control valve includes a housing having an upstream region and a downstream region and having a control orifice formed therein adjacent...
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6209578 |
Constant flow valve
A regulating valve is disclosed for controlling the flow of fluid from a variable pressure fluid supply. The valve includes a diaphragm which is resiliently biased into a normally closed position,...
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5363876 |
Flow control devices
A fluid flow device for minimizing the effects of fluctuating pressures on the fluid flow rate has a variable restriction in the fluid path through the device arranged to produce a lesser...
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5097863 |
Flow control apparatus
A flow control valve for maintaining a selected and constant flow rate over a range of liquid delivery pressures is disclosed which includes a housing, a cavity defined within the housing, an input...
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5004008 |
Variable area refrigerant expansion device
A refrigerant flow metering device which varies the expansion area of the device in response to the differential pressure between refrigerant in the high and low pressure sides of a refrigerant...
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4998556 |
Drip emitter
An improvement of an adjustable-rate, flow-regulated, constant-output emitter comprising a flow-regulating valve having a valve head accessible to the high-pressure liquid and a valve stem one end...
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4796660 |
Drip emitter
A flow-regulated drip emitter, including a housing provided with an inlet connector connectable into a relatively high-pressure liquid-line and an outlet opening, a flexible diaphragm retained...
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