Fluid handling – Systems – Flow path with serial valves and/or closures
Reexamination Certificate
2006-04-18
2006-04-18
Chambers, A. Michael (Department: 3753)
Fluid handling
Systems
Flow path with serial valves and/or closures
C251S149900
Reexamination Certificate
active
07028711
ABSTRACT:
A fluid coupling for connecting a hose to a port includes an internal body slidably supported in an external body bore of an external body. The internal body includes valve bore. A stem, located in the valve bore, includes first and second stem seals, and a stem bore in fluid communication with a hose fitting and an outer surface of the stem between the seals. The stem is movable between valve open and closed positions by moving a valve handle. A rotation limiting member coupled to the stem and slidably coupled to the external body limits the rotation of the stem. A locking sleeve coupled to the external body moves between a secure position and a release position. The locking sleeve interferes with the valve handle position when the locking sleeve is in the release position to prevent opening the valve when not connected to the port.
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Snap Coupler, Part No. 18295 sold in 1999 by the John Essman Company in Hamilton, IN 46742.
Chambers A. Michael
Essman Stephanie C.
Essman Bridges Coleen D.
Mantooth Geoffrey A.
Terry L. Bruce
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