Hydrostatic test plug for water service line

Details Hydrostatic test plug for water service line Hydrostatic test plug for water service line

2005-01-18

2005-01-18

Larkin, Daniel S. (Department: 2856)

Measuring and testing

With fluid pressure

Clamp, plug, or sealing feature

C138S089000, C138S090000

Reexamination Certificate

active

06843108

ABSTRACT:
A pipe test plug for scaling and pressure testing a water utility supply line or other pressurized pipe has a plug body sized and shaped for insertion into an open end of a water supply line. The plug body has an inner and an outer end, with first and second spaced apart annular seals supported on the plug body. The annular seals and plug body together seal the water supply line when the pipe test plug is inserted therein. A securing member extends through at least one portion of the water supply line and into the plug body inserted therein for securing the pipe test plug in the water supply line under test pressure, the securing member being received in the plug body between the second annular seal and the other end of the plug body. The plug body may include first and second cylindrical seal plates each defining a peripheral groove for respectively receiving and supporting the first and second annular seals. The cylindrical seal plates are connected by web portions. A mounting tab joined with the plug body and extending generally along the plug body and spaced therefrom to accommodate the distal end of a water supply line. The mounting tab defining an opening for guiding the securing member through the supply line and into the plug body. An insertion stop positions the test plug in the water service line.

REFERENCES:
patent: 3583239 (1971-06-01), Paine et al.
patent: 5074336 (1991-12-01), Black
patent: 5555998 (1996-09-01), Coppola

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