Non-tapping service line connection fitting

Claim 2

A fitting for coupling a service line to a fluid distribution pipe having an opening therein, said fitting comprising a body member having an inlet portion with an end for insertion into the opening in said pipe and an outlet portion for connection to the service line, said body member having a flow passage extending therethrough between said inlet portion and said outlet portion, a saddle member having a bore therethrough and having an end surface surrounding said bore which is complementary to the exterior surface of the pipe surrounding the opening therein, said saddle member being carried on said inlet portion for relative movement axially thereof, a counter bore in the end surface of said saddle member, a cylindrical sleeve having an exterior diameter less than the diameter of the opening in the pipe and arranged to be received in said counter bore, and expander means carried on the end of said inlet portion of said body member for flaring said sleeve outwardly when said inlet portion is moved axially outwardly of said saddle member, said expander means being adjustably carried on said inlet portion, said expander means being a frusto-conical ring threadedly carried on the end of said inlet portion and having a maximum diameter greater than the interior diameter of said sleeve but less than the diameter of the opening in said pipe.

Claim 3

A fitting as claimed in claim 1 in which said saddle member is threadedly carried on said inlet portion for the axial movement relative thereto.

Claim 4

A fitting as claimed in claim 2 in which said saddle member has a thread of opposite hand to a thread of said expander ring.

Claim 5

A fitting as claimed in claim 3 including a first sealing means carried on the surface of said saddle member complementary to the exterior surface of said pipe for sealing between the same and the pipe and a second sealing means for sealing between the saddle member and said inlet portion of said body member.

Claim 6

A fitting for coupling a service line to a fluid distribution pipe having an opening therein, said fitting comprising: a body member having an inlet portion with an end for insertion into the opening in said pipe and an outlet portion for connection to the service line, said body member having a flow passage extending therethrough between said inlet portion and said outlet portion, said inlet portion having a first thread extending from adjacent its edge along a portion of its length and said first thread having a diameter less than the diameter of said opening, an intermediate unthreaded portion also of a diameter less than the diameter of said opening, and a second thread extending from said intermediate portion along another portion of the inlet end portion, said second thread being of opposite hand to said first thread, a saddle member having a bore therethrough with a thread at one end thereof complementary to said second thread, said saddle member having its opposite end provided with a surface complementary to the exterior surface of said pipe and being larger than said opening, a cylindrical bushing slidable on the end of said inlet portion and having an exterior diameter to permit the same to be inserted through said opening, and an annular expander member having an interior thread complementary to said first thread and having a maximum outside diameter no greater than the diameter of said opening but greater than an interior diameter of said bushing, saId expander member being capable of expanding an end of said bushing within said pipe when said body member is partially backed out of said saddle member with said saddle member bearing against said pipe.

Claim 7

A fitting for coupling a service line to a fluid distribution pipe having an opening therein, said fitting comprising: a body member having an inlet portion with an end for insertion into the opening in said pipe and an outlet portion for connection to the service line, said body member having a flow passage extending therethrough between said inlet portion and said outlet portion, said inlet portion having a first thread extending from adjacent its edge along a portion of its length and said first thread having a diameter less than the diameter of said opening, an intermediate unthreaded portion also of a diameter less than the diameter of said opening, and a second thread extending from said intermediate portion along another portion of the inlet end portion, said second thread being of opposite hand to said first thread, a saddle member having a bore therethrough with a thread at one end thereof complementary to said second thread, said saddle member having its opposite end provided with a surface complementary to the exterior surface of said pipe and being larger than said opening, a cylindrical bushing slidable on the end of said inlet portion and having an exterior diameter to permit the same to be inserted through said opening, and an annular expander member having an interior thread complementary to said first thread and having a maximum outside diameter no greater than the diameter of said opening but greater than an interior diameter of said bushing, saId expander member being capable of expanding an end of said bushing within said pipe when said body member is partially backed out of said saddle member with said saddle member bearing against said pipe.

Claim 8

A fitting as claimed in claim 5 including sealing means carried in a groove in the opposite end surface of said saddle member for bearing against the exterior of said pipe around said hole.

Claim 9

A fitting as in claim 6 including a second sealing means carried by said saddle member for sealing between said saddle member and the intermediate unthreaded portion of the inlet portion.

Claim 10

A fitting as claimed in claim 5 wherein said annular expander member has a frusto-conical expanding surface for engaging the interior of said bushing.

Claim 11

A fitting as claimed in claim 8 wherein said frusto-conical expanding surface is concave in radial section of said expander member.

Claim 12

A fitting as claimed in claim 5 including a counter bore in the end of the saddle member abutting the pipe, said counter bore receiving a portion of said bushing and preventing movement of the bushing axially of the saddle member when said body member is partially backed out of saddle member to expand the inner end of the bushing.

Claim 13

A fitting as claimed in claim 5 in which said bushing is made of a softer material than said expander member and in which said second thread on said inlet end portion has a greater diameter than said first thread.

Claim 14

A fitting as claimed in claim 5 in which said saddle member is provided in its exterior with wrench-engaging surfaces whereby it may be held snugly against the pipe when said body member is being withdrawn partially therefrom.