CA1048371A - Perforatrice hydraulique - Google Patents

Perforatrice hydraulique

Info

Publication number
CA1048371A
CA1048371A CA76243803A CA243803A CA1048371A CA 1048371 A CA1048371 A CA 1048371A CA 76243803 A CA76243803 A CA 76243803A CA 243803 A CA243803 A CA 243803A CA 1048371 A CA1048371 A CA 1048371A
Authority
CA
Canada
Prior art keywords
piston
space
liquid
valve
canal
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
CA76243803A
Other languages
English (en)
Other versions
CA243803S (en
Inventor
Pekka Salmi
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.)
Tampella Oy AB
Original Assignee
Tampella Oy AB
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 Tampella Oy AB filed Critical Tampella Oy AB
Priority to CA76243803A priority Critical patent/CA1048371A/fr
Application granted granted Critical
Publication of CA1048371A publication Critical patent/CA1048371A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
CA76243803A 1976-01-19 1976-01-19 Perforatrice hydraulique Expired CA1048371A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA76243803A CA1048371A (fr) 1976-01-19 1976-01-19 Perforatrice hydraulique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA76243803A CA1048371A (fr) 1976-01-19 1976-01-19 Perforatrice hydraulique

Publications (1)

Publication Number Publication Date
CA1048371A true CA1048371A (fr) 1979-02-13

Family

ID=4105007

Family Applications (1)

Application Number Title Priority Date Filing Date
CA76243803A Expired CA1048371A (fr) 1976-01-19 1976-01-19 Perforatrice hydraulique

Country Status (1)

Country Link
CA (1) CA1048371A (fr)

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