CA1292033C - Boring device for a lining material applied onto the inner surface of a pipe line - Google Patents

Boring device for a lining material applied onto the inner surface of a pipe line

Info

Publication number
CA1292033C
CA1292033C CA 544889 CA544889A CA1292033C CA 1292033 C CA1292033 C CA 1292033C CA 544889 CA544889 CA 544889 CA 544889 A CA544889 A CA 544889A CA 1292033 C CA1292033 C CA 1292033C
Authority
CA
Canada
Prior art keywords
coil spring
tension coil
boring device
pipe line
spring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA 544889
Other languages
English (en)
French (fr)
Inventor
Katsuaki Zenbayashi
Akio Morinaga
Hisao Ohtsuga
Osamu Toyoshima
Shinji Shimokawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ashimori Industry Co Ltd
Tokyo Gas Co Ltd
Original Assignee
Ashimori Industry Co Ltd
Tokyo Gas Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ashimori Industry Co Ltd, Tokyo Gas Co Ltd filed Critical Ashimori Industry Co Ltd
Application granted granted Critical
Publication of CA1292033C publication Critical patent/CA1292033C/en
Expired legal-status Critical Current

Links

Landscapes

  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Earth Drilling (AREA)
CA 544889 1986-08-19 1987-08-19 Boring device for a lining material applied onto the inner surface of a pipe line Expired CA1292033C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP192087/1986 1986-08-19
JP19208786A JPS6353000A (ja) 1986-08-19 1986-08-19 管路の内張り材の穿孔具

Publications (1)

Publication Number Publication Date
CA1292033C true CA1292033C (en) 1991-11-12

Family

ID=16285430

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 544889 Expired CA1292033C (en) 1986-08-19 1987-08-19 Boring device for a lining material applied onto the inner surface of a pipe line

Country Status (2)

Country Link
JP (1) JPS6353000A (enExample)
CA (1) CA1292033C (enExample)

Also Published As

Publication number Publication date
JPH0468119B2 (enExample) 1992-10-30
JPS6353000A (ja) 1988-03-07

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Legal Events

Date Code Title Description
MKLA Lapsed