COMPRESSION SEAL TAPPING SLEEVE

• US 3,807,435 A
• Filed: 06/05/1972
• Issued: 04/30/1974
• Est. Priority Date: 06/05/1972
• Status: Expired due to Term

• Current Assignee: Abraham S. Fenster, Fred W. Salloga
• Original Assignee: Abraham S. Fenster, Fred W. Salloga
• Inventors: Fenster, Abraham S., Salloga, Fred W.
• Primary Examiner(s): Cohan, Alan
• Assistant Examiner(s): Matthews, David R.
• Application Number:
  US05/259,728
• Time in Patent Office: 694 Days
• Field of Search: 137/317,318 285/197,198,199
• US Class Current: 137/317
• CPC Class Codes: F16L 41/12 using attaching means embracing the pipe
• CPC Class Codes: Y10T 137/612 Tapping a pipe, keg, or apertured tank under pressure

Abstract

A tapping sleeve split along an axis parallel to the longitudinal axis of a pipe main to be tapped and installed around the main in such a manner that tapping is accomplished through a branch opening while the split fitting provides a dual compression seal completely around and immediately adjacent the tapped opening and wherein each split half of the sleeve includes raised serrated pads on the inner surface thereof which are embedded into the pipe main.

Claims

1. A split T pipe fitting comprising a run portion and a branch portion, said run portion being substantially a hollow cylinder with a longitudinal axis, a vertical axis, a horizontal axis, thin walls, two open ends and a side opening, said branch portion being substantially a hollow cylinder with two open ends and one of its open ends intersecting said run portion perpendicularly midway between said open ends and centrally located about said vertical axis of said run portion surrounding said side opening of said run portion and being attached thereto, the other of two said ends of said branch portion comprising means for attaching tapping equipment to said split T, and said run portion being split into a first and second part parallel to said longitudinal axis, both first and second parts having two flanged longitudinal edges, said longitudinal edges having means for bolting said first part to said second part, said first part having said branch portion attached, and said split T having serrated pads depending inwardly from said thin walls, some of said serrated pads being located midway between said vertical and said horizontal axes and at least one of said serrated pads being located along said vertical axis and on said thin wall opposite said branch portion.

2. A split T pipe fitting as recited in claim 1 in which said split T has at least 10 serrated pads depending inwardly from said thin walls, four of said serrated pads being located on each hollow end of said run portion and midway between said vertical and said horizontal axes and two of said serrated pads being located along said vertical axis and on said thin wall opposite said branch portion.

3. A split T pipe fitting as recited in claim 1 in which said first part has a gasket groove inside said run portion and surrounds said side opening, said gasket groove containing a substantial ring-shaped gasket, said gasket having a lip portion connected to a body portion.