US 6,149,129 AGranted

Valve system having tapered sealing portions

AssigneeEastman Kodak Company

InventorsClark Eugene Harris, Jeffrey Charles Robertson

Life of this patent

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Abstract

A probe and a valve, which may be used together in a valve assemblage, and a method of using them. The valve includes a valve body with a forward end having a forwardly tapering valve body opening defined by a valve seat; a valve seal positioned in the valve body and having a forward end with a forwardly tapering valve seating portion, with the forward end being movable rearwardly from a closed position in which the seating portion sealingly mates against the valve seat to close the valve body opening, to an open position in which the valve seating portion is spaced from the valve seat to allow fluid to pass through the valve body opening and hence through the valve; and a resilient member adapted to urge the forward end of the valve seal into the closed position.

Claims5

Dependent claims

A valve comprising:

a valve body with a forward end having a forwardly tapering valve body opening defined by a valve seat;
and
a valve seal positioned in the valve body and having a forward end with a forwardly tapering valve seating portion, the forward end of the valve seal being movable rearwardly from a closed position in which the valve seating portion sealingly mates against the valve seat to close the valve body opening, to an open position in which the valve seating portion is spaced from the valve seat to allow fluid to pass through the valve body opening and through the valve, said valve seal being resilient so as to urge the forward end of the valve seal into the closed position;
and
wherein the forward end of the valve seal has a rearwardly tapering recess surrounded by the valve seating portion, and the forward end of the valve seal is laterally resilient so that the valve seating portion of the valve seal can be laterally urged into engagement against the valve seat by a probe before the valve seal is moved out of the closed position.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 09/227,248Filed 8 Jan 1999 · division
Priority: 28 Feb 1997
Granted: 21 Nov 2000
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

F16K 15/18
Check valves: with actuating mechanism; Combined check valves and actuated valves
F16L 37/32
With fluid cut-off means in each of two pipe-end fittings: at least one of two lift valves being opened automatically when the coupling is applied
Y10T 137/87949
Each valve and/or closure operated by coupling motion: linear motion of flow path sections operates both
Y10T 137/87957
Linear motion of flow path sections operates both: valves actuate each other