Pipe joints or couplings – Packed – Wedge
Reexamination Certificate
2006-02-28
2006-02-28
Dunwoody, Aaron (Department: 3679)
Pipe joints or couplings
Packed
Wedge
C285S337000, C285S342000, C285S113000
Reexamination Certificate
active
07004511
ABSTRACT:
The pipe coupling device includes a sleeve having an end adapted for receiving a pipe. The end has a sealing cavity defined between the outer surface of the pipe and the interior surface of the sleeve. A sealing gasket is adapted for arrangement within the sealing cavity of the sleeve for compression into sealing engagement with the pipe. A gripper ring is adapted for encircling the pipe and has a radial inner surface having a plurality of gripping members for gripping the pipe upon coaxial compression of the gripper ring. An intermediate ring is adapted for encircling the pipe between the sealing gasket and the gripper ring, and has a restraining member adapted for restraining the gripper ring to prevent the gripping members from gripping the pipe until after the sealing gasket is compressed into sealing engagement with the pipe. A locking ring adapted for communication with the gripper ring, and at least two tightening members are included for connecting the sleeve and the locking ring to compressibly secure the gripper ring, intermediate ring, and sealing gasket to the pipe, such that upon the tightening of the tightening members the sealing ring is compressed into sealing engagement followed by the gripping of the pipe by said gripper ring.
REFERENCES:
patent: 4569542 (1986-02-01), Anderson et al.
patent: 5335946 (1994-08-01), Dent et al.
patent: 5803513 (1998-09-01), Richardson
patent: 6371531 (2002-04-01), Robison
Barron Dale
Gifford Paul
Revell Stephen
Boss Gerald R.
Dunwoody Aaron
Mueller International Inc.
Troutman Sanders LLP
LandOfFree
Pipe coupling device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pipe coupling device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pipe coupling device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3666791