ATE48180T1 - METHOD AND DEVICE FOR EXCITING AN UNDERGROUND TUNNEL. - Google Patents

METHOD AND DEVICE FOR EXCITING AN UNDERGROUND TUNNEL.

Info

Publication number
ATE48180T1
ATE48180T1 AT87304537T AT87304537T ATE48180T1 AT E48180 T1 ATE48180 T1 AT E48180T1 AT 87304537 T AT87304537 T AT 87304537T AT 87304537 T AT87304537 T AT 87304537T AT E48180 T1 ATE48180 T1 AT E48180T1
Authority
AT
Austria
Prior art keywords
exciting
underground tunnel
underground
tunnel
Prior art date
Application number
AT87304537T
Other languages
German (de)
Inventor
Glen Baker
Albert W Chau
John E Mercer
Original Assignee
Flowmole Corp
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
Priority claimed from US06/866,241 external-priority patent/US4714118A/en
Application filed by Flowmole Corp filed Critical Flowmole Corp
Application granted granted Critical
Publication of ATE48180T1 publication Critical patent/ATE48180T1/en

Links

AT87304537T 1986-05-22 1987-05-21 METHOD AND DEVICE FOR EXCITING AN UNDERGROUND TUNNEL. ATE48180T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/866,241 US4714118A (en) 1986-05-22 1986-05-22 Technique for steering and monitoring the orientation of a powered underground boring device
EP87304537A EP0247799B1 (en) 1986-05-22 1987-05-21 Method of and apparatus for providing an underground tunnel

Publications (1)

Publication Number Publication Date
ATE48180T1 true ATE48180T1 (en) 1989-12-15

Family

ID=26110286

Family Applications (1)

Application Number Title Priority Date Filing Date
AT87304537T ATE48180T1 (en) 1986-05-22 1987-05-21 METHOD AND DEVICE FOR EXCITING AN UNDERGROUND TUNNEL.

Country Status (3)

Country Link
AT (1) ATE48180T1 (en)
DE (1) DE3761030D1 (en)
GR (1) GR3000225T3 (en)

Also Published As

Publication number Publication date
DE3761030D1 (en) 1989-12-28
GR3000225T3 (en) 1991-03-15

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