JPS5931990Y2 - 管路における石の排除装置 - Google Patents

管路における石の排除装置

Info

Publication number
JPS5931990Y2
JPS5931990Y2 JP1976154136U JP15413676U JPS5931990Y2 JP S5931990 Y2 JPS5931990 Y2 JP S5931990Y2 JP 1976154136 U JP1976154136 U JP 1976154136U JP 15413676 U JP15413676 U JP 15413676U JP S5931990 Y2 JPS5931990 Y2 JP S5931990Y2
Authority
JP
Japan
Prior art keywords
box body
catch ring
stone
stone removal
suction
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
JP1976154136U
Other languages
English (en)
Japanese (ja)
Other versions
JPS5370419U (enrdf_load_stackoverflow
Inventor
宏 久住
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.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi Construction Machinery 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 Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Priority to JP1976154136U priority Critical patent/JPS5931990Y2/ja
Publication of JPS5370419U publication Critical patent/JPS5370419U/ja
Application granted granted Critical
Publication of JPS5931990Y2 publication Critical patent/JPS5931990Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP1976154136U 1976-11-17 1976-11-17 管路における石の排除装置 Expired JPS5931990Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1976154136U JPS5931990Y2 (ja) 1976-11-17 1976-11-17 管路における石の排除装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1976154136U JPS5931990Y2 (ja) 1976-11-17 1976-11-17 管路における石の排除装置

Publications (2)

Publication Number Publication Date
JPS5370419U JPS5370419U (enrdf_load_stackoverflow) 1978-06-13
JPS5931990Y2 true JPS5931990Y2 (ja) 1984-09-08

Family

ID=28762293

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1976154136U Expired JPS5931990Y2 (ja) 1976-11-17 1976-11-17 管路における石の排除装置

Country Status (1)

Country Link
JP (1) JPS5931990Y2 (enrdf_load_stackoverflow)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5350087Y2 (enrdf_load_stackoverflow) * 1973-11-24 1978-12-01

Also Published As

Publication number Publication date
JPS5370419U (enrdf_load_stackoverflow) 1978-06-13

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