Pipe joints or couplings – Packed – Wedge
Reexamination Certificate
2005-03-01
2005-03-01
Nicholson, Eric K. (Department: 3679)
Pipe joints or couplings
Packed
Wedge
C285S040000
Reexamination Certificate
active
06860523
ABSTRACT:
A fluid coupling having an outer housing with an internal bore, an O-ring fitted within the bore, a spacer bushing fitted against the O-ring, a gripper ring fitted against the axially outer side of the spacer ring, the gripper ring having axially and radially inwardly protruding circumferentially spaced gripping teeth, the teeth arranged for providing a twist when subjected to simultaneous rearward axial and rotational forces, and an end bushing holding the gripper ring, spacer bushing, and O-ring within the outer housing. A fluid coupling having an outer housing with an internal bore, an O-ring seal fitted within the bore, a spacer bushing fitted against the seal, a first gripper ring fitted against the axially outer side of the spacer ring, a second gripper ring fitted against the O-ring seal, the gripper rings having axially and radially inwardly protruding circumferentially spaced gripping teeth, in one embodiment the teeth arranged for providing a twist when subjected to simultaneous rearward axial and rotational forces, and an end bushing holding the gripper rings, spacer bushing, and O-ring within the outer housing.
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O'Neill Jerry E.
Whitney Charlie
Accor Technology, Inc.
Davis , Wright, Tremaine, LLP
Nicholson Eric K.
Rondeau, Jr. George C.
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