초록

An apparatus for preventing slippage of the ends of pipes, which may be broken, from within a Dresser-type coupling utilized for mending such breaks. A slip stop ring member is provided for preventing slippage of a washer to the end of the pipe.

대표청구항 ▼

An apparatus adaptable for coupling first and second ends of first and second pipes, said apparatus comprising: first and second cylindrical washers adaptable for engaging said first and second pipes, respectively, near said first and second ends, wherein inner diameters of said first and second was

An apparatus adaptable for coupling first and second ends of first and second pipes, said apparatus comprising: first and second cylindrical washers adaptable for engaging said first and second pipes, respectively, near said first and second ends, wherein inner diameters of said first and second washers are substantially equal to outer diameters of said first and second pipes, respectively; first and second cylindrical rings adaptable for engaging said first and second pipes, respectively, near said first and second ends and between said first and second ends and said first and second cylindrical washers, respectively, wherein inner diameters of said first and second cylindrical rings are substantially equal to outer diameters of said first and second pipes, respectively, and wherein an outer diameter of said first and second cylindrical rings are large enough to prevent passage thereover of said first and second cylindrical washers; a cylindrically shaped sleeve; and first and second means adaptable for forming seals between said first and second cylindrical washers and said cylindrically shaped sleeve. The apparatus as recited in claim 10 further comprising: a valve means coupled to said cylindrically shaped sleeve.