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IT8719200A0 - Punta per perforazione di roccia con ugello allungato perfezionato. - Google Patents

Punta per perforazione di roccia con ugello allungato perfezionato.

Info

Publication number
IT8719200A0
IT8719200A0 IT8719200A IT1920087A IT8719200A0 IT 8719200 A0 IT8719200 A0 IT 8719200A0 IT 8719200 A IT8719200 A IT 8719200A IT 1920087 A IT1920087 A IT 1920087A IT 8719200 A0 IT8719200 A0 IT 8719200A0
Authority
IT
Italy
Prior art keywords
rock drilling
drilling tip
extended nozzle
improved extended
improved
Prior art date
Application number
IT8719200A
Other languages
English (en)
Other versions
IT1216858B (it
Inventor
Rudolf Carl Otto Pessier
Original Assignee
Hughes Tool Co
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 Hughes Tool Co filed Critical Hughes Tool Co
Publication of IT8719200A0 publication Critical patent/IT8719200A0/it
Application granted granted Critical
Publication of IT1216858B publication Critical patent/IT1216858B/it

Links

IT8719200A 1986-01-31 1987-01-29 Punta per perforazione di roccia con ugello allungato perfezionato. IT1216858B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82448686A 1986-01-01 1986-01-01

Publications (2)

Publication Number Publication Date
IT8719200A0 true IT8719200A0 (it) 1987-01-29
IT1216858B IT1216858B (it) 1990-03-14

Family

ID=25241517

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8719200A IT1216858B (it) 1986-01-31 1987-01-29 Punta per perforazione di roccia con ugello allungato perfezionato.

Country Status (3)

Country Link
JP (1) JPS62185996A (it)
CA (1) CA1258064A (it)
IT (1) IT1216858B (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1401219B1 (it) * 2010-07-15 2013-07-12 Trevi Spa Testa di iniezione per iniettare miscele consolidanti fluide pressurizzate nel terreno.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57180788A (en) * 1981-04-28 1982-11-06 Hughes Tool Co Rock bit

Also Published As

Publication number Publication date
IT1216858B (it) 1990-03-14
CA1258064A (en) 1989-08-01
JPS62185996A (ja) 1987-08-14

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