Pipe joints or couplings – Deformed – Outwardly expanded
Reexamination Certificate
2006-03-01
2009-02-17
Bochna, David E (Department: 3679)
Pipe joints or couplings
Deformed
Outwardly expanded
C285S382000, C285S405000
Reexamination Certificate
active
07490870
ABSTRACT:
A hydraulic flange connection having a formed tube in physical conjointness with a contoured sleeve member, the conjointness including the sleeve member having a cylindrical body bore, a cylindrical outer portion tapering at one axial end into a frustoconical portion abutting one bore end, the cylindrical outer portion also merging into an annular outer end surface having inner and outer edges defining a bowl-shaped recess with a raised annular inner end surface; the tube having a cylindrical portion extending into and through the sleeve member bore, a radial flange portion thereof including an axially outwardly-directed, openly curved, circumferential radial groove, with an inner surface of the flange portion conforming axially and radially with an abutting complementary surface of the bowl-shaped outer recess portion in a fully nesting retention relationship. Details of achieving the conjointness between the tube and the sleeve member are also set forth in product-by-process claim recitation.
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Notification of Transmittal of The International Search Report and The Written Opinion of the International Searching Authority, or the Declaration in corresponding International Application No. PCT/US2006/013951.
Shah Atul
Waina Daniel A.
Bochna David E
Molnar John A.
Parker-Hannifin Corporation
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