Pipe joints or couplings – Packed – Wedge
Reexamination Certificate
2006-07-03
2011-10-11
Bochna, David E (Department: 3679)
Pipe joints or couplings
Packed
Wedge
Reexamination Certificate
active
08033578
ABSTRACT:
A coupling between a first body with a hole and a cylindrical end zone of a second body to be inserted therein, in which hole extend elastically deformable tongues, the free end edges of which tongues lie on a circle, the diameter of which is smaller than the outer diameter of the end zone, which tongues bend in the insertion direction when the end zone is inserted and scrape over the surface thereof with their free edges such that after inserting the end zone over some distance the movement in a backward direction is blocked. The end edges of the tongues have an inclining position corresponding to a part of a helix, so that during a relative rotation of the two bodies, the form of the helix is followed whereby an axial relative movement also occurs and the end zone can be removed from the hole.
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Bochna David E
Harness & Dickey & Pierce P.L.C.
Widee B.V.
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