Pipe joints or couplings – Flexible joint – rigid members – Resilient sleeve type
Reexamination Certificate
2011-08-02
2011-08-02
Dunwoody, Aaron (Department: 3679)
Pipe joints or couplings
Flexible joint, rigid members
Resilient sleeve type
C285S109000, C285S139100, C285S201000, C285S205000
Reexamination Certificate
active
07988203
ABSTRACT:
A pipe connection assembly is disclosed including a cylindrical hub having an interior diameter and a leading end having an exterior beveled surface that defines a leading edge of the hub; and a cylindrical elastomeric sleeve having an inner end that includes a radially inwardly projecting lip having a seat surface inclined to correspond to the beveled surface of the hub so the seat surface engages the beveled surface of the hub. The lip includes an annular stop projecting inwardly and having an interior diameter that is less than the interior diameter of the hub, thereby to define a stop surface that contacts the leading edge of the hub when the hub is inserted into the sleeve. The assembly restricts to a minimal amount the penetration of a hub component of the assembly into the cored hole of the mainline pipe to which the assembly is connected.
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Inserta Fittings Co., Lateral Connections Solutions Inserta Tee, Brochure, 24 pages, Jan. 1, 2003.
Office Action, Canadian Patent Office; Corresponding application No. 2,611,315, 2 pages, Aug. 31, 2009.
Dunwoody Aaron
Finnegan Henderson Farabow Garrett & Dunner LLP
Kee Fannie
Sewer Tap Inc.
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