Fluid handling – Systems – Flow path with serial valves and/or closures
Patent
1997-04-21
1998-04-21
Lee, Kevin
Fluid handling
Systems
Flow path with serial valves and/or closures
13761403, 2511496, F16L 2900
Patent
active
057408351
ABSTRACT:
A connector adapted for a quick connection to and for sealing and filling a valve assembly, such as a Schraeder Valve. The connector provides a secondary containment feature which prevents leakage when removing the connector, thereby improving performance and efficiency. The connector includes a collet member at one end that fits over the threaded portion of the valve assembly and, when closed, compresses a seal that engages the external threads of the valve, thereby eliminating the need for threading an external fitting on the valve assembly. As the system pressure increases, an internal plunger, having a forward flow orifice and a rear inlet orifice, is axially displaced and depresses the valve assembly stem. Simultaneously, the forward orifice passes ahead of an internal O-ring and allows fluid flow. As pressure is relieved from the system, the plunger and forward flow orifice move behind the internal O-ring and seal the piston chamber, thereby preventing leakage when removing the connector.
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Lee Kevin
Tuthill Corporation
LandOfFree
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