Pipes and tubular conduits – With closures and plugs
Reexamination Certificate
2011-08-23
2011-08-23
Hook, James (Department: 3754)
Pipes and tubular conduits
With closures and plugs
C138S09600T, C285S387000, C285S388000
Reexamination Certificate
active
08001995
ABSTRACT:
An end cap for an open end of a hydraulic fitting having a peripheral flange can be provided by a threaded ring and a threaded insert. The threaded insert can be rotatably engaged with the threaded ring to move axially back and forth. The threaded insert has a forward end face which can engage the open end of the hydraulic fitting to close the hydraulic fitting end or to couple with it. The threaded ring includes a locking member to embrace and engage the peripheral flange. The end cap can be used to prevent loss of oil from the hydraulic fitting during service of equipment on which the hydraulic fitting is utilized, and for other purposes.
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Hook James
K&L Gates LLP
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