Polymeric pipe splitter, replacement tool and method

Details Polymeric pipe splitter, replacement tool and method Polymeric pipe splitter, replacement tool and method

1994-06-24

1996-08-13

Taylor, Dennis L.

Hydraulic and earth engineering

Subterranean or submarine pipe or cable laying, retrieving,...

166 55, 30 925, F16L 5518

Patent

active

055449778

ABSTRACT:
A tool and method for splitting an existing underground polymeric pipe into a plurality of strips and for expanding the strips and the surrounding ground to permit replacement of the existing polymeric pipe along its length from an entry excavation to an exit excavation without excavating entirely along the length. The tool includes a nose sized smaller than a minimum inside diameter of the existing polymeric pipe, a blade unit attached to the nose having a plurality of cutting blades extending therefrom radially outward about an imaginary central axis, each of the plurality of cutting blades having a forward opened "V" shaped cutting edge sized larger than a maximum outside diameter of the existing polymeric pipe for cutting the existing polymeric pipe into strips along the length thereof. A mandrel is attached to the nose coaxial with the blade unit having an exterior surface tapered from a front diameter, at least as small as a minimum inside diameter of the existing pipe, to a back diameter larger than the replacement pipe to be inserted, and a power device for forcing the tool through the existing pipe with sufficient force in the direction of the open "V" shaped blades to cause the polymeric pipes to be cut into strips and to cause the strips to be expanded by the mandrel to the back diameter larger than the outside diameter of the replacement pipe so that the replacement pipe can be inserted along the entire length of the pipe.

REFERENCES:
patent: 652367 (1900-06-01), Law
patent: 928361 (1909-07-01), Cockburn
patent: 1001205 (1911-08-01), Lovell
patent: 1519882 (1924-12-01), Stewart et al.
patent: 1618368 (1927-02-01), Dietle
patent: 1638494 (1925-02-01), Lewis et al.
patent: 1717588 (1929-06-01), Small
patent: 2502711 (1950-04-01), Evans
patent: 2628165 (1953-05-01), Barber
patent: 2834106 (1958-05-01), Conder
patent: 2947253 (1960-08-01), Cirilo
patent: 2983042 (1961-05-01), Frantz et al.
patent: 3005493 (1961-10-01), Crowe et al.
patent: 3023040 (1962-02-01), Cawley et al.
patent: 3073389 (1963-01-01), Conner
patent: 3181302 (1965-05-01), Lindsay
patent: 3543377 (1970-12-01), Bremner
patent: 4003122 (1977-01-01), Overmyer et al.
patent: 4100980 (1978-07-01), Jenne
patent: 4118940 (1978-10-01), Beane
patent: 4505302 (1985-03-01), Streatfield et al.
patent: 4720211 (1988-01-01), Streatfield et al.
patent: 4738565 (1988-04-01), Streatfield et al.
patent: 5002432 (1991-03-01), Dysarz
patent: 5048793 (1991-09-01), Mefford et al.
patent: 5076731 (1991-12-01), Luksch
patent: 5078546 (1992-01-01), Fisk et al.
patent: 5112158 (1992-05-01), McConnell
patent: 5192165 (1993-03-01), Torielli
patent: 5207533 (1993-05-01), Federspiel et al.
patent: 5302053 (1993-04-01), Moriarty
patent: 5306101 (1993-04-01), Rockower et al.

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