Pipe slitting apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9512951
APP PUB NO 20150198279A1
SERIAL NO

14668383

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An apparatus for replacing an existing pipe. The apparatus comprises a slitter and expander which surround a wire rope. The wire rope is attached to the expander, and the expander abuts either the slitter or a separation tube disposed between the expander and slitter, such that the slitter and expander are pivotable relative to each other. The apparatus is placed in a pipe to be replaced and pulled. While being pulled, blades on the slitter slit the pipe, while a sloped surface of the expander moves the slit sections apart into surrounding soil. A replacement pipe may be pulled by a pipe putter attached to the expander. A beacon may also be disposed within the apparatus to emit a signal for locating the apparatus white underground.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
THE CHARLES MACHINE WORKS INC1959 WEST FIR AVENUE P O BOX 66 PERRY OK 73077-0066

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Crane, Robert F Oconomowoc, US 88 1155
Randa, Mark D Summit, US 47 262
Thompson, Walter George Janesville, US 8 27

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